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Hoffman Amps Forum image Author Topic: lego's spin on Sluckey's AC15  (Read 211066 times)

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Offline lego4040

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lego's spin on Sluckey's AC15
« on: March 26, 2014, 03:04:48 pm »
the last picture is why Im building the Vox, it needs somthing other then a fender amp. I swtiched the pressing around so the turrets wont fall out when trying to press :cussing: Otherwise thanks to all you guys on this forum and others Im enjoying and not stressing on this build. I havent choosen a chassis yet but the 20" i believe it is might be the one, I cant locate a good 17".


EL34 Edit:
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Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #1 on: March 26, 2014, 03:49:24 pm »
Thanks for the photos, looks real nice.

I use a lot of Dale resistors, what made you decide to use them?  I like them because I don't have to read ring colors and brown rings are very difficult for me to see.  Alsi, they are really nice.  Are they all 1 watt?

You must not buy into the notion you need the old carbon comp resistors to get that old vibe.  I don't either, I like an amp quiet and not drifting.

Looks great.

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #2 on: March 26, 2014, 05:04:32 pm »
The Dales are 1/2 watts and I got them for those same reasons. I was going to get 1 watts but when reading Doug's BOM he has 1/2watts down, so that's what I went with. I was debating but now I hope I won't regret. My friend says my trannies should be at his store in a week, I am stuck on chassis and cab :BangHead: I'm really digging RJ's chassis and heads. I need to email him to see if he has blanks. Once I'm done with this I'm gonna take a shot at express

Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #3 on: March 26, 2014, 06:39:37 pm »
The Dales are 1/2 watts and I got them for those same reasons. I was going to get 1 watts but when reading Doug's BOM he has 1/2watts down, so that's what I went with. I was debating but now I hope I won't regret. My friend says my trannies should be at his store in a week, I am stuck on chassis and cab :BangHead: I'm really digging RJ's chassis and heads. I need to email him to see if he has blanks. Once I'm done with this I'm gonna take a shot at express
Yea man, an express would be cool just because of Ken Fisher.  He was very influential even if you do not like this amps.  The statement there is nothing new in tubeland did not apply to him.  I think he was a lot like a couple guys here.  Tubenit is one of those guys that continues to attempt to improve on designs, of course there are many others here like out new puppy Silvergun.

I say this to get you over here as I need a lot of help :icon_biggrin:

So far as the Vox AC15, I have decided to go completely away from the original look.  I am going head and cabinet and not decided the overall look, but I am thinking I will mesh Marshall and Hiwatt.  Anyway, just wanted to say again it looks great ever the guitar.

Offline tubenit

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Re: lego's spin on Sluckey's AC15
« Reply #4 on: March 26, 2014, 06:56:55 pm »
That is quite impressive!!  Thanks for sharing the photos.

With respect, Tubenit

Offline Willabe

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Re: lego's spin on Sluckey's AC15
« Reply #5 on: March 26, 2014, 07:13:17 pm »
That is quite impressive!!  Thanks for sharing the photos.

Double yep! Very nice indeed!


            Brad     :icon_biggrin:

Offline TubeGeek

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Re: lego's spin on Sluckey's AC15
« Reply #6 on: March 26, 2014, 08:26:51 pm »
Nice work! I look forward to following along.

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #7 on: March 26, 2014, 09:31:05 pm »
Thanks guys, I tried my hands at dovetails today on some scrap wood :laugh: something I haven't done since highschool wood shop 30 years ago. I still love woodworking but might leave the cabinet making to Someone else. I tried getting some more things ordered but works been busy and everyone has been sick or getting sick. I will gladly take suggestions, pointers if you see something that might not look right, please let me know. I will take better shots of board. I might go with British style combo, of coarse I'll spend 4 weeks trying to pick a speaker size and type.

Offline SILVERGUN

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Re: lego's spin on Sluckey's AC15
« Reply #8 on: March 26, 2014, 09:39:55 pm »
I just love this stuff.....GREAT pictures!
I can't say I've ever heard an AC15 (that I know of), but because all you guys are making a fuss over it,,,I now feel the need to start looking closer.
I'll keep watching and put it on the list....it's like #11 at this point   :wink:
It was pretty cool to watch Chambley post the question, Sluckey point to your build, and then you show up and share the goods.

Once you get done with this, an Express is gonna seem like a Champ build  :icon_biggrin:

Please stick around and help Ed.....we hate to see him suffer

Thanks guys, I tried my hands at dovetails today on some scrap wood :laugh:
I picked this up last year and it has come in very handy....I hate buying Chinese crap tools, but this thing is a necessity for easy/inexpensive dovetails
http://www.harborfreight.com/dovetail-machine-34102.html

Offline kagliostro

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Re: lego's spin on Sluckey's AC15
« Reply #9 on: March 27, 2014, 01:33:27 am »
WOW - Das ist wunderbar !



We found the Andy Warhol of amp porn

Really nice photos  :grin:

K
The world is a nice place if there is health and there are friends

Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #10 on: March 27, 2014, 04:45:36 am »
I just love this stuff.....GREAT pictures!
I can't say I've ever heard an AC15 (that I know of), but because all you guys are making a fuss over it,,,I now feel the need to start looking closer.
I'll keep watching and put it on the list....it's like #11 at this point   :wink:
It was pretty cool to watch Chambley post the question, Sluckey point to your build, and then you show up and share the goods.

Once you get done with this, an Express is gonna seem like a Champ build  :icon_biggrin:

Please stick around and help Ed.....we hate to see him suffer

Thanks guys, I tried my hands at dovetails today on some scrap wood :laugh:
I picked this up last year and it has come in very handy....I hate buying Chinese crap tools, but this thing is a necessity for easy/inexpensive dovetails
http://www.harborfreight.com/dovetail-machine-34102.html
While I am suffering badly, I can take a break for a moment you Smart one you.

So you fancy yourself a rock fan of up-most proportions, but you fail to follow the history of what came before to to bring about some of your favorites like Toni Basil or The Flock of Seagulls.  Not to mention the crowning achievements of your metal friends like Ratt and Winger.

Just think for a moment why would Pete Townsend ever have slashed his speakers to have them move side to side and Distort?  Why is there a Vox tone people refer to?  I can assure you it is not from what Korg is doing with Vox.  Historically, there have been only a handful of amplifiers to reign in this category and this little baby invented the Vox tone and is the only amp to truly have it.

Even the popular AC30 loses some of the Vox sound which is commonly referred to as the Class A sound which we know does not make a particular sound and the truth is Class A is usually very clean.  The fact that there is so much untrue folklore around an amp says something in itself. When you hear it after it is built, you will be absolutely amazed how many times you have heard it in recordings.  If it were built today exactly the same no one would buy it because Korg makes a particle poard, PCB 12Ax7 Voxish amp that sells cheap.

 A great builder and a hellova nice guy Binwitt started this idea of an AC15 in a Marshall chassis and Sluckey took up with quickly.  Binwitt is working too much these days, but had the intention of building a few exact clones for his studio.  The idea is to make the AC15 run cool and to be able to place it into a combo like a tweed whereas access to insides is easy and to make an amp that was poorly ventilated and difficult to repair much better.

Sluckey's revision he is calling the long version even does more of this and is a great learning strategy for me.  To take an already great build such as Lego4040 is doing to even placing everything on the board except one cap can where the B+ is traveling through the cap and choke and then has one connection to the board for everything else.  What a potential reduction in manufacturing costs.

I will be using a Celestion Blue and for the first time I plan to make a clone, if you can call it that.   I usually travel off the reservation on builds, but the original Vox deserves to run cool and sound great.

No other company protects the Vox brand as much a Korg has and the mention of the word Vox conjures up in the mind of every player a tone.  Whether the tone is correct is debatable, but this tone is more specific than any other amp in the minds of players.  Tom Petty digs them and who am I to say he is wrong.

I want one because they preform well with open string scales and chicken pickin and all is need is one more amp and I am done.  They sound OK if you are playing themostoverratedbamndinhistory's music, the Beatles.  Don't really know Why Ritchey says that, but it is funny.

Offline tubenit

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Re: lego's spin on Sluckey's AC15
« Reply #11 on: March 27, 2014, 06:08:30 am »
Here is a video of the AC-15 handwired if you're not familiar with the tone:



With respect, Tubenit

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #12 on: March 27, 2014, 06:58:34 am »
35 dollars for a dovetail jig, I got bits and a router but need the bushings. I will watch the video to see how to use. I've never used one and I hear they are tuff setting up. Thanks for the link

Offline SILVERGUN

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Re: lego's spin on Sluckey's AC15
« Reply #13 on: March 27, 2014, 08:24:47 am »
So you fancy yourself a rock fan of up-most proportions, but you fail to follow the history of what came before to to bring about some of your favorites like Toni Basil or The Flock of Seagulls.  Not to mention the crowning achievements of your metal friends like Ratt and Winger.
Please don't ever mention Ratt OR Winger again.....I can't stop laughing

Let me remind you of where I came from....
When I was 19 I bought this rig (pictured below) and never played any other amp on stage until I was 35.....I thought "I" had the greatest tone ever, because Mesa told me it was, and I was so busy trying to keep up with top 40 radio that I had no real ear for amps.....
Mine was 95 watts in stereo, so I couldn't hear anyone else's amp if I wanted to  :icon_biggrin:....I laughed at AC15's....they were adorable  :undecided:

Don't pay any attention to us old washed up guitar hacks lego,,,
And don't worry about me Ed,,,,I'm gonna have to do enough explaining when/if I get to the pearly gates.  :wink:

I watched about 5 videos, including the one T linked, and I'm starting to get it......I think a big part of getting it would be sittng in front of one

I would be very tempted to just use sluckey's guide and stay the course....pretty involved stuff there, and I would just take advantage of all the hard work he put in.

35 dollars for a dovetail jig, I got bits and a router but need the bushings. I will watch the video to see how to use. I've never used one and I hear they are tuff setting up. Thanks for the link.
It was tough for about an hour and a half of setup and wasting some scrap pieces, but once I got it, I built 2 head cabs and a 1x12 in 2 days.
Below is a pic of how my first head came out....I was pretty impressed with myself. Much easier than I thought and I was kicking myself for waiting so long to try it.

Offline terminalgs

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Re: lego's spin on Sluckey's AC15
« Reply #14 on: March 27, 2014, 08:29:03 am »
looks incredible.

That Gretsch plus a Vox might be good Dave Davies territory.

Offline tubenit

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Re: lego's spin on Sluckey's AC15
« Reply #15 on: March 27, 2014, 09:42:14 am »
I use one like this. I think I paid $39 for it.  I've used it on all the amp cabs that I've built.  I don't think it's a very high quality but overall I've been happy with it.

http://www.amazon.com/MLCS-6406-Tails-Blind-Dovetail/dp/B000GG1M2S/ref=sr_1_1?s=hi&ie=UTF8&qid=1395925640&sr=1-1&keywords=Half+Blind+Dovetail+Jig

With respect, Tubenit

Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #16 on: March 27, 2014, 12:22:21 pm »
So you fancy yourself a rock fan of up-most proportions, but you fail to follow the history of what came before to to bring about some of your favorites like Toni Basil or The Flock of Seagulls.  Not to mention the crowning achievements of your metal friends like Ratt and Winger.
Please don't ever mention Ratt OR Winger again.....I can't stop laughing

Let me remind you of where I came from....
When I was 19 I bought this rig (pictured below) and never played any other amp on stage until I was 35.....I thought "I" had the greatest tone ever, because Mesa told me it was, and I was so busy trying to keep up with top 40 radio that I had no real ear for amps.....
Mine was 95 watts in stereo, so I couldn't hear anyone else's amp if I wanted to  :icon_biggrin:....I laughed at AC15's....they were adorable  :undecided:

Don't pay any attention to us old washed up guitar hacks lego,,,
And don't worry about me Ed,,,,I'm gonna have to do enough explaining when/if I get to the pearly gates.  :wink:

I watched about 5 videos, including the one T linked, and I'm starting to get it......I think a big part of getting it would be sittng in front of one

I would be very tempted to just use sluckey's guide and stay the course....pretty involved stuff there, and I would just take advantage of all the hard work he put in.

35 dollars for a dovetail jig, I got bits and a router but need the bushings. I will watch the video to see how to use. I've never used one and I hear they are tuff setting up. Thanks for the link.
It was tough for about an hour and a half of setup and wasting some scrap pieces, but once I got it, I built 2 head cabs and a 1x12 in 2 days.
Below is a pic of how my first head came out....I was pretty impressed with myself. Much easier than I thought and I was kicking myself for waiting so long to try it.
Oh, I know you get it.  95 watts stereo and you can still hear?

I don't wat to hijack this thread anymore, but you cannot find an original 60 AC15 on youtube except for a 2 12 version.  The Handwired series is a tad brighter and a little more harsh.

Offline TNblueshawk

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Re: lego's spin on Sluckey's AC15
« Reply #17 on: March 27, 2014, 12:47:05 pm »
35 dollars for a dovetail jig, I got bits and a router but need the bushings. I will watch the video to see how to use. I've never used one and I hear they are tuff setting up. Thanks for the link

Lookin' good Lionel.

And you don't want to know what I paid for my table saw box joint jig (INCRA)

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #18 on: March 27, 2014, 01:28:03 pm »
I may stop at my lumber yard and see what they have on stock. Ill find a head plan and have them ri boards to width and length. I dont trust my old saw for fine carpentry.

Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #19 on: March 27, 2014, 01:44:32 pm »
Here is a link to the best original I can find.  Good demo, dudes are German and look very happy.  It is a 2, 12


Offline terminalgs

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Re: lego's spin on Sluckey's AC15
« Reply #20 on: March 27, 2014, 01:55:40 pm »
I don't wat to hijack this thread anymore, but you cannot find an original 60 AC15 on youtube except for a 2 12 version.  The Handwired series is a tad brighter and a little more harsh.

J Mascis of Dinosaur Jr. recorded all his leads with a 58 tele into a '59 AC15 for their last album 'i bet on sky', the album before, it was the tele and a 60's Vox Super Berkeley.  Rhythm guitar was a LP Jr and a tweed deluxe.   

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #21 on: March 27, 2014, 02:21:07 pm »
I am about to order some parts< want to keep the resistors to the brown dales look and the closest I can get to a 220k is 221k at 1% tolerence. Is that close enough, I iknow in most cases it is when Im building pedals but this is a amp and it s 1/2 watt :help:

Offline terminalgs

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Re: lego's spin on Sluckey's AC15
« Reply #22 on: March 27, 2014, 02:23:16 pm »
the closest I can get to a 220k is 221k at 1% tolerence. Is that close enough.

absolutely Yes.

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #23 on: March 27, 2014, 03:01:43 pm »
Finally ordered my last board components, I hate forgeting and having to pay shipping costs again :cussing:

Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #24 on: March 28, 2014, 06:22:54 am »
I am about to order some parts< want to keep the resistors to the brown dales look and the closest I can get to a 220k is 221k at 1% tolerence. Is that close enough, I iknow in most cases it is when Im building pedals but this is a amp and it s 1/2 watt :help:
Really 20% is close enough and the old amps with Carbon Comp resistors usually drift high with heat and use.  Sometimes it creates a tone like no other that is very pleasing.  Then again the things are a tad noisy.

Look at any old fender schematic and it states 20% which seems like a lot, but close enough fro rock and roll.

Seriously, I would use the RN Dales if I had enough, but I am using BC Vishay which I have found to be very quiet.  They are 5%.  Building an old Vox I promise if your tolerances are within 5% it will be tighter than when a 1960 AC15 was initially built.

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Re: lego's spin on Sluckey's AC15
« Reply #25 on: March 28, 2014, 03:20:41 pm »
My transformers are ordered and on the way, I am using the Hammonds from SLuckeys BOM. My next order this weekend is chassis, pots and tube sockets. Anyone have a preference to chassis with extended lips or not? If I go with a Marshall style cab then I believe I will need lips, Also sockets I believe are all pins, Any preferences out there? Those PEC pots are$$$$$ so Ill stick with ALphas

Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #26 on: March 28, 2014, 08:44:19 pm »
My transformers are ordered and on the way, I am using the Hammonds from SLuckeys BOM. My next order this weekend is chassis, pots and tube sockets. Anyone have a preference to chassis with extended lips or not? If I go with a Marshall style cab then I believe I will need lips, Also sockets I believe are all pins, Any preferences out there? Those PEC pots are$$$$$ so Ill stick with ALphas
If your plans are to use a switch for the tremolo instead of a 3MRA pot with a series 100k, then Alpha pots should be fine.  I have had much bad luck with them and will not use them anymore, but that is just me.  I do not like the audio pots either as all the volume is quick.  I am snakebit with them as they say.  I prefer in order, PEC, Bourns, and CTS.  Also, Steve at http://www.apexjr.com/ has some great prices on NOS pots and carling swithces.  He has a lot of things not on his website and all is that great stuff made years ago and also nice Teflon wire.

I usually get stock items as you can never know what he has.  Sort of surplus.  I restore old radios and he has been very beneficial.  If it is not on his site email or call.  Very helpful guy and just getting a few items saves enough where additional shipping is not a concern.

I am using a lip chassis so I can put it into a Marshall headbox. 

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #27 on: March 28, 2014, 08:56:58 pm »
I am using a 3ma for the tremolo and will take note of the pots and will buy the ones preferred

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #28 on: March 28, 2014, 10:32:05 pm »
So instead of using A pots your using B? Thanks for the tips, lip cassis it is

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Re: lego's spin on Sluckey's AC15
« Reply #29 on: March 28, 2014, 10:55:43 pm »
Quote
So instead of using A pots your using B?
Huh? Are you talking about the pot taper?

I will be using all Alpha pots with audio taper except the CTS 3M-RA speed pot. I like Alpha pots and have never had a problem with them. They have a nice feel too.

I think Ed turned against Alpha when he discovered a dual ganged 250K pot was not perfect. The resistance of the two pots did not track perfectly.

I prefer a chassis with the lips turned inward rather than sticking out on the ends.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #30 on: March 29, 2014, 06:07:41 am »
Quote
So instead of using A pots your using B?
Huh? Are you talking about the pot taper?

I will be using all Alpha pots with audio taper except the CTS 3M-RA speed pot. I like Alpha pots and have never had a problem with them. They have a nice feel too.

I think Ed turned against Alpha when he discovered a dual ganged 250K pot was not perfect. The resistance of the two pots did not track perfectly.

I prefer a chassis with the lips turned inward rather than sticking out on the ends.
Not the tracking of the pots.  I really did have problems one after the other with some of them. Just checked and it was 6 I replaced due to failures, but I am sure it is me.  Dead spots in the carbon track.  As I said, loads are sold and many amp builders use them with great success.  Since I have never had a CTS (and have some in amps that are over 50 years old) or Bourns pot cause me problems I use them.  It is true the tracking of the pots are sometimes wildly off, but others are as well.  That is the reason I use PEC for Master Volumes as they track much better.  If I have a 3mRA for Tremolo I use all CTS because they are all the same and my punch holes for them are the same.  Alpha punch holes are smaller.  Most Boutique builders use Alpha.  Just preference.  Fender uses them in their new amps and I assume most others do as well.

The last chassis(s) I made I turned under because the outer lip can scratch the crap out of you arm so I usually file off the corners. After doing this I learned the benefit of a outer fold/lip is they sit on an ampstand and are visually more open and that is why the next batch I make will have outer fold/lip.

Follow Sluckeys advise, he knows much better than me.  I am just stating my preferences and why I have them.
« Last Edit: March 29, 2014, 07:35:40 am by Ed_Chambley »

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Re: lego's spin on Sluckey's AC15
« Reply #31 on: March 30, 2014, 11:23:36 am »
Quote
Alpha punch holes are smaller.
Not if you buy the ones with a 3/8" bushing. I don't like those small bushing Alphas that Doug sells.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline sluckey

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Re: lego's spin on Sluckey's AC15
« Reply #32 on: March 30, 2014, 11:25:56 am »
Hey lego, did you find a replacement for the Mallory 150 0.01µF cap that doesn't fit neatly on the board? If so, which brand? Xicon?
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

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Re: lego's spin on Sluckey's AC15
« Reply #33 on: March 30, 2014, 12:48:18 pm »
Quote
Alpha punch holes are smaller.
Not if you buy the ones with a 3/8" bushing. I don't like those small bushing Alphas that Doug sells.
Yep, AES has them if someone is reading this and wondering.  A lot of other places do as well, but I like AES.

Antique Electric Supply or tubesandmore.com.  Same people and also same as CE distribution I believe if you buy a lot for distribution.

Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #34 on: March 30, 2014, 01:09:22 pm »
Hey lego, did you find a replacement for the Mallory 150 0.01µF cap that doesn't fit neatly on the board? If so, which brand? Xicon?

Where? I missed this comment.  Where does it not fit?  Did lego404 make this comment here?  Inquiring minds want to know.

Offline sluckey

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Re: lego's spin on Sluckey's AC15
« Reply #35 on: March 30, 2014, 02:39:01 pm »
It's the cap that connects to V5-1. The new M150 is just slightly longer than the old yellers. Xicon should fit nicely.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #36 on: March 30, 2014, 03:26:10 pm »
It's the cap that connects to V5-1. The new M150 is just slightly longer than the old yellers. Xicon should fit nicely.
Thank you, I see it.  I had planned to raise it and just use a "t" bend.

I hate to ask you as you have been so good in sharing your stuff with me, but how you coming with the long version? :icon_biggrin:

Also, I have not received and materials yet, I can start with the cabinet if you are close.  I still have to get a choke and a OT.  Are you planning to use Hammond OT?  I have always been pleased with Hammond OT's.

I am also using ceramic instead of silver mica.  The only thing I am changing is the resistors as I cannot hear any additional warmth or distortion from carbon comps.  Maybe a job for the Mythbusters. :think1:

What do you think about elevating the heaters since the Hammond PT has a CT on the heaters?  It should be easy.

I am going to use the standup version of the Mercury Toneclone.  I plan to start a new topic to see how many are interested in building this to see if we have enough interest to get a discount an order from Mercury.  I get a fairly decent price break from them, but not like the some of the heavier users we have on the forum I am sure.

HBP made mention of this.  I am sure he know someone that gets much better pricing from Mercury.  All the amp shops around here use Heyboer and a lot are starting to use Classistone so I cant get any of them to get a discounted one.  Really, it doesn't matter that much, I am not really doing this to save money, but it is always nice.

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Re: lego's spin on Sluckey's AC15
« Reply #37 on: March 31, 2014, 08:06:18 am »
Quote
I hate to ask you as you have been so good in sharing your stuff with me, but how you coming with the long version?
I'm probably through tweaking the board layout. The whole package still needs a couple of rainy days. The board will be 13.75" x 3.125".

Quote
Are you planning to use Hammond OT?
Yes. But Hammond has had a huge price increase since I last bought an OT. The 1650F will now cost $104! In fact, all Hammond iron that I spec'd will cost $203!. The ClassicTone will cost $170. I don't even want to know what MM wants for their iron.

So, my Matchless Lightning will become a donor. Never did bond with that amp!  :icon_biggrin:

Quote
What do you think about elevating the heaters since the Hammond PT has a CT on the heaters?  It should be easy.
I'm not planning on it.

The only changes I am considering is a speed pot rather than a switch, a front panel depth pot rather than the internal depth preset, and a 5V rectifier rather than the EZ81. Possibly a 6 position rotary switch, but that's an easy mod so I'll start with the simple on/off brilliance switch.

All my parts have been ordered. I using the 20 x 6.5 x 2.5 inward lip chassis from Watts.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #38 on: March 31, 2014, 11:37:04 am »
Sluckey I got this http://www.mouser.com/Search/ProductDetail.aspx?R=1429-6103virtualkey21980000virtualkey1429-6103
for the .01 uf. Im ordering more of my parts as I write and will post them. A mock of the chassis to start laying out components


EL34 edit
Please crop your images down a to normal size
« Last Edit: April 16, 2014, 03:47:18 pm by EL34 »

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #39 on: March 31, 2014, 11:57:48 am »
 :dontknow: What switch was used for the Brilliant switch?

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Re: lego's spin on Sluckey's AC15
« Reply #40 on: March 31, 2014, 12:03:48 pm »
I'm just gonna use a mini toggle. I like the cardboard idea. If you're gonna put the cap board inside the chassis, you may consider butting the two boards end to end.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

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Re: lego's spin on Sluckey's AC15
« Reply #41 on: March 31, 2014, 12:37:17 pm »
 :sad2: Thats why when your single board came out I almost died, I wanted to that. I will butt those two together anyway. I have order going know at turretboard.com $150 dollars i and i didnt even get to tubes. Any special size or rating? 250v and higher I bet

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Re: lego's spin on Sluckey's AC15
« Reply #42 on: March 31, 2014, 12:44:18 pm »
The cardboard trick I learned over at BYOC

Offline sluckey

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Re: lego's spin on Sluckey's AC15
« Reply #43 on: March 31, 2014, 01:24:18 pm »
Quote
Any special size or rating? 250v and higher I bet
You mean for the brilliance switch? There's no dc voltage on it and the only ac voltage is a small guitar signal. Any rating you find for a toggle switch will be fine. If you should find a cheap two position rotary switch let us know.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #44 on: March 31, 2014, 02:21:07 pm »
Lots just ordered from Turretboard. $195 worth. I ordered the 20x6.5x2.5 chassis+shielding cover. Ceramic sockets, switchcraft L12A jacks, Carling switches, fuse holder & fuses, dial indicator lamp/bulbs and jewels, nuts/kep nuts. CTS pots

Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #45 on: March 31, 2014, 03:37:30 pm »
Very nice planning.  The cap board will work well, but I do like the idea of getting the caps on the board.  If you have been building pedals a while, I bet you have enough parts laying around to build one without ordering anything.

Amp building is the same.  Any part I have on hand I consider it costs me nothing. :laugh:

Like this build, I have everything, even an Output Transformer, but I am not using it.  I gonna buy me a Mercury. :l2:

I am very interested in how the Hammond Iron works.  I have 2 builds with old hammond iron and really like them.  You guys will get finished way before me and I have no reason to order the OT yet.  I have some nice OT's I pulled form a few Baldwin organs that will run nicely if i get that close.

The rotary switches are hard to come by.  I have one, but I have a vox amp and I am keeping it for the original.  I saw one on EBAY, but they sell for way more than a mini toggle and what is the difference really?

Love the cardboard.  You bring some good work to us.  Thanks for that.

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #46 on: March 31, 2014, 04:10:41 pm »
Tubes ordered from AES as well as few different size rubber Grommets tube selection goes like this:
JJ TUBES: EZ81 for Rectifier,  ECC82 for the 12AU7,(3) matched ECC83-S for the 12AX7's, EF806-S for the EF86( low micro phonics)and a matched pair of EL844( these are lower output 84 and break up earlier with same creamy distortion) I also got a regular matched pair of JJ EL84(forgot to take out of cart) oops. I'll use them for my next build

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Re: lego's spin on Sluckey's AC15
« Reply #47 on: March 31, 2014, 04:21:32 pm »
Ed did you see the T bend on the .01uf in the pic? It's in lower portion just left of the big red chicklet.  Shoot Hammond went up? I don't know what my source is paying, classictone is cheaper now :think1: I'll keep that in mind for wreck build. MM wants your first born, one kidney and liver. The OT From MM is more then All the Hammonds together

Offline Ed_Chambley

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Re: lego's spin on Sluckey's AC15
« Reply #48 on: March 31, 2014, 06:32:41 pm »
Ed did you see the T bend on the .01uf in the pic? It's in lower portion just left of the big red chicklet.  Shoot Hammond went up? I don't know what my source is paying, classictone is cheaper now :think1: I'll keep that in mind for wreck build. MM wants your first born, one kidney and liver. The OT From MM is more then All the Hammonds together
I did see how you fit the cap.  It looks just fine to me.  Actually, your work is much cleaner and neater than mine.  With you and Sluckey working on this, I am going to have to step it up.  Normally I just want it to work and be quiet.

Weber has the Mercury iron for $177 for the OT I think.  With Mercury, the more you buy the cheaper they sell it.  I am going to email Patrick and get a price.  I am sort of reluctant at this point as I have a LOT of OT's suitable for well over 15 watts with primaries from 8K to 10K.  I could try 10 or so to check, but like I mentioned Hammond Iron is really good.  Not cheap.

I have had a lot more people who have built them tell me to use the Mercury, but I think it is because there is no risk.  Mercury makes good stuff.

The classictone is a 6k primary and Vox did use a 6k3, but did not stay with that winding.  I use Classistone Power Tranny's and have one OT I had in a sort of Tweed Deluxe, but modified cap values and a 6G3 tonestack.  It has a 12 inch Celestion Blue.  I tried a few others and kept the Clasictone.  It sounds good to my ears.

I got an order in of some parts and board material, but I am going to make the headbox and a 1, 12 Cabinet.  I will use tolex as I think this build will be a very nice to carry around and wood finishes look great, but do not travel well.  Since we are essentially building a Vox I am going to use something different and somehow get the diamond pattern.  I use mostly Fender Rough Blond Tolex.  These decisions are tough as it is a lot of work and I want it to be special in some way. It will be I believe.

The cost of material and parts add up quick, but if you want a 60's Vox it may cost you a little more I believe.  You are going to have a really nice amp with a wicked cool Tremolo.  I just hope I can make decent time on my version.

Offline lego4040

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Re: lego's spin on Sluckey's AC15
« Reply #49 on: March 31, 2014, 07:26:10 pm »
I will pass on my own cabinet building, I ordered the chassis with the lips so I can go Marshall style cab and have it dressed up in Vox style. Ill probably have Mojo do it unless I came across something different on the net. Im reading some tranny chat over at ampgarage now. talk about rocking class electronic trannies and Pacifics. I myself hope my amp fires up, not literally :l2:

 


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