Schedule 40 sound clip.

[Geezer]

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EL34
Administrator
Posts: 2953
(5/17/05 2:12 pm)
Reply
  Schedule 40 sound clip.
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 I added a couple quickie sound clips.

Schedule40 sound clip
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Edited by: EL34 at: 5/17/05 2:54 pm
 
Craigzbrand
Senior tube assistant
Posts: 124
(5/17/05 2:50 pm)
Reply  Re: Schedule 40 sound clip.
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 Sounds nice! I'm planning to build one of these on an eyelet board as a combo amp with a single 10 or 12. You mentioned you liked the original GA-5 better than champs, so let me ask this. Do you like the Schedule 40 better than the orig GA-5? I guess another way to put it, do you like the SE EL84 better than the 6V6?
 
EL34
Administrator
Posts: 2956
(5/17/05 2:53 pm)
Reply
  Re: Schedule 40 sound clip.
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 Hard to say, I haven't heard a GA-5 in years. They used to come through my repair shop and they always dropped jaws when they were freshly serviced and cranked up for a test.

I just added another clip. This time it's cranked with a humbucker.
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Craigzbrand
Senior tube assistant
Posts: 125
(5/17/05 3:06 pm)
Reply  Re: Schedule 40 sound clip.
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 That's pretty cool! What spkr are you using for the recordings?
 
EL34
Administrator
Posts: 2957
(5/17/05 3:33 pm)
Reply
  Re: Schedule 40 sound clip.
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 C10Q Jensen re-issue's.

2 x 10 cabinet. Actually I just plugged it into the speakers on the amp at the top of this page.
Amp link
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tubenit
Hey get your own solder
Posts: 252
(5/17/05 5:58 pm)
Reply  Re: Schedule 40 sound clip.
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 A little blues, .... a little "rattlesnake shake" (?).......... amp has a very nice tone to it! Never heard anything from Lowe's sound that good before.  Thanks for sharing. tubenit
 
RMS
Hey get your own solder
Posts: 206
(5/17/05 7:01 pm)
Reply  Re: Schedule 40 sound clip.
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 Cool - sounds good also!

Do you think there would be any shilding problems due to the PVC case?
 
yellatele88
Senior tube assistant
Posts: 140
(5/17/05 8:11 pm)
Reply  ga-5's
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 Doug - sounds great!

I was just on eBay and I can't believe how cheap 50's GA-5's sell for compared to a tweed champ. There are two right now below $200.
 
ampcabinets
Senior tube assistant
Posts: 137
(5/17/05 10:11 pm)
Reply  plastic amp
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 pretty dern cool.
I was always a fan of fleetwood mac and bob welch.
"don't ask me what I think of you, I might not give the answer that you want me to...."

ah yes....2x10's is my favorite........

the sheilding question is a good one.
Now if you could get a pvc box to sound that good.....
 
EL34
Administrator
Posts: 2959
(5/18/05 6:30 am)
Reply
  Re: plastic amp
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 The amp is very quiet now so shielding doesn't seem to be a problem. The critical things like input jacks and pre amp tube all have enough space away from the power tranny.

Now if you mean can you take it out to a bar full of beer signs and hope to get no buzz? You can get a buzz two ways, from the signs and the beer.  

Ya got the tune rught but I though Peter Green wrote "Oh Well".

Ebay amps-be careful. Under $200 is good I guess? I haven't followed amp prices in a long time. Gibsons have a very cool look to them. Some of them are sleeping tone monsters.
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Edited by: EL34 at: 5/18/05 6:37 am
 
Van
Junior tube assistant
Posts: 62
(5/18/05 7:31 am)
Reply  GA-5
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 Doug... what did you do to get rid of the hum ?
 
EL34
Administrator
Posts: 2960
(5/18/05 7:50 am)
Reply
  Re: GA-5
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 I re-routed the ground from the front panel parts, (Jack and pot) to the preamp terminal strip ground. It was going all the way back to the star ground lug.

Then I grounded the pre-amp tube socket so that the shield actually was a shield. The shield was acting like a capacitor I guess since it was free floating on the plastic chassis.
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Karate Doc
Junior tube assistant
Posts: 40
(5/18/05 8:30 am)
Reply  Re: GA-5
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 Great sounding tone from a litle amp.

Can do do a parts cost breakdown for us?

Was that straight guitar into the amp or did you have any other devices connected?

Inspiring minds want to know
 
EL34
Administrator
Posts: 2961
(5/18/05 9:20 am)
Reply
  Re: GA-5
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 Sorry, I don't have time to do parts cost esimates.
My shopping cart totals parts as you go so you can see what the cost is.

You can make a list of parts from the schematic. If I get time later in the week, I may go through the schematic and make a list.

It's a very simple amp, it should not take you too long to do this. Or, some other ambitous forum member can do the list for you and I can double check it.
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TryingToDo613
Junior tube assistant
Posts: 46
(5/18/05 4:37 pm)
Reply  Ok, I'm breaking my promise.
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Hi EL. I'm going to take the above posts to illustrate my point that I have made in the past. I wish I could convince you to take advantage of us sheep. I'm sure you sit back when you see these pleading posts and say "just go do it yourself." But it's not that simple. We don't have the wherewithall to go and do it. In fact I'd say from the caliber of posts here, even the ones like me who are mostly clueless, that *very few of us are actual sheep in our regular work*. And just like we don't make our own coloring books for our kids, we don't need to make our own layouts and parts lists for the amps that we try to find time to build. As much as you can say "there are no rules", coloring books with pictures in them exist for a reason. Lot's of people could draw their own silly clown. In fact the people who draw those silly clowns probably say that can't believe people actually pay them author/artist royalties on outlines of silly clowns. It's just that for the end user, if I can take an hour to sit down and color with my kids, I don't want to have to draw the silly clowns first so we have something to work on.

You could do a line drawing of the inside of that amp and put a shopping cart item with all the parts and a hookup diagram. I know you don't want to make it idiotproof because of all the customer support it requires in attracting newbies, but I don't think that's asking much. You could also have some brief text of how it differs from a champ and how you've always remembered them coming into the shop and people drooling over them. So instead of a few posts that eventually get lost you have a permanent inventory item. And we get another silly clown to color, in between diapers in the commute. -613
 
albert
Junior tube assistant
Posts: 19
(5/18/05 5:46 pm)
Reply  Re: Schedule 40 sound clip.
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 Yes this sounds good.

Btw:
I like the Humbucker clip best, raw sound .

Albert

 
ampcabinets
Senior tube assistant
Posts: 145
(5/19/05 3:33 am)
Reply  nice box amp
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 Doug,
peter green was with fleetwood mac, Bob welch sang the tune, if I 'm not mistaken, I 'll have to go look up my albums or fleetwood cd's, to be sure.

buzz on........
 
Van
Junior tube assistant
Posts: 63
(5/19/05 7:44 am)
Reply  Peter Green
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 No.. Peter Green sang it and played guitar. He and Danny Kirwin were in the best version of Fleetwood-Mac.
 
EL34
Administrator
Posts: 2971
(5/19/05 7:51 am)
Reply
  Re: Peter Green
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Quote:
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You could do a line drawing of the inside of that amp and put a shopping cart item with all the parts and a hookup diagram. I know you don't want to make it idiotproof because of all the customer support it requires in attracting newbies, but I don't think that's asking much. You could also have some brief text of how it differs from a champ and how you've always remembered them coming into the shop and people drooling over them. So instead of a few posts that eventually get lost you have a permanent inventor

[Geezer]

Re: Peter Green
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Quote:
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You could do a line drawing of the inside of that amp and put a shopping cart item with all the parts and a hookup diagram. I know you don't want to make it idiotproof because of all the customer support it requires in attracting newbies, but I don't think that's asking much. You could also have some brief text of how it differs from a champ and how you've always remembered them coming into the shop and people drooling over them. So instead of a few posts that eventually get lost you have a permanent inventory item. And we get another silly clown to color, in between diapers in the commute. -613
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I am busy packing up orders. If I stop and do things for people that are just curious how much something cost, someone's not going to get their parts shipped out.

Parts orders come first.

If you want to learn about this very simple little amp and where all the parts go, you need to do some of the work yourself.
Someone here in this forum is already working on a layout diagram and a parts list because it was a slow day at work for them and they were nice enough to offer.
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TryingToDo613
Junior tube assistant
Posts: 51
(5/19/05 8:31 am)
Reply  Re: Peter Green
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 heh heh. tire kickers we are huh. Yes, I love getting my stuff next day. :)
 
Craigzbrand
Senior tube assistant
Posts: 126
(5/19/05 9:47 am)
Reply  Re: drawing
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 TTD613, look at the library of information here, or schematic heaven, or really anywhere you can get schematics online. The layout work has all been done, all you need to do is cut'n paste.
 
EL34
Administrator
Posts: 2973
(5/19/05 1:57 pm)
Reply
  Re: drawing
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 Craig Barnett was kind enough to draw up a circuit board layout diagram and a parts list for the Schedule 40 amp.

I posted the links to these documents on the Schedule 40 page.
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TryingToDo613
Junior tube assistant
Posts: 52
(5/19/05 4:04 pm)
Reply  Re: drawing
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 Cool beans man, thanks. Like really cool beans. You might want to add tube retainers to the list, and on the chassis, a revenge of the sith lunchbox. -613
 
ampcabinets
Senior tube assistant
Posts: 148
(5/19/05 5:02 pm)
Reply  fleetwood
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 hey van, guess what, you're right.
I had to look it up on the album cover.
I would agree with you on the original Fleetwood Mac Blues Band being the best lineup, until they added Christene.
All that grey hair makes my mind a little fuzzy at times. Although with all that reverb he does sound kind of like a young bob welch.
I never got to see them with peter green, The only version I ever got to was with Bob welch and the others from the original line up, long before space girl and what's his name.......
I do have cristine macvee with chicken shack, tho'
good stuff.....and some of the original Fleetwood Mac blues band stuff, live from New Orleans.
 
TryingToDo613
Junior tube assistant
Posts: 54
(5/19/05 7:03 pm)
Reply  Re: fleetwood
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 Doug how did you end up resolving the noise issue? I am actually planning on using a painted metal box so probably will do the star ground as well.
 
EL34
Administrator
Posts: 2976
(5/20/05 6:21 am)
Reply
  Re: fleetwood
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 I answered that several post up.
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Van
Junior tube assistant
Posts: 64
(5/20/05 7:42 am)
Reply  Peter Green
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 Ampcabinets... interesting name.. does it come from from your mothers' side of the family, or your fathers'? Yeah , all this valuable knowledge comes from my staring at record album liner-notes while everyone else was getting a "proper" education.
 
TryingToDo613
Junior tube assistant
Posts: 56
(5/20/05 8:14 am)
Reply  grounding
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 So originally you had the grouds coming off the front stuff going in a long wire to the star ground, then you moved them to the place where you had the preamp grounded? And that of course goes to the star ground. Am I understanding this? -613
 
Craigzbrand
Senior tube assistant
Posts: 129
(5/20/05 11:16 am)
Reply  Re: grounding
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 Not sure what your question is exactly, but what he's doing with those terminal strips is flying caps and resistors to the sockets, etc., with probably most strips having common ground terminal(s), and perhaps some of the strips having a jumper and sharing another strip's grounding point. Then a wire is run from those "ground" points to a PT bolt terminal, which is the main grounding point, or "star" if you want to call it that. I don't think he had to move any of his original ground points, just needed to add a wire to ground the actual 12AX7 socket, so the shield would act like a shield.
 
TryingToDo613
Junior tube assistant
Posts: 59
(5/20/05 12:01 pm)
Reply  Re: grounding
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 Light dawns on marblehead. Thanks. -613
 
EL34
Administrator
Posts: 2977
(5/20/05 12:42 pm)
Reply
  Re: grounding
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 I did move one ground point because the amp sounded quieter to me.
The black wire that is soldered to the back of the pot used to go to all the way back to the star ground. Now it goes over to the terminal strip where I drew in that black line.

The black line is a new ground wire that grounds the pre-amp socket so the shield will work.
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ampcabinets
Senior tube assistant
Posts: 157
(5/25/05 1:51 am)
Reply  funny guy
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 Van, is that moving or Ford econoline?
I stared at those same liners, but the LSD, mushrooms and other medicines wiped a few brain cells loose and I have to rearrange them once in a while by looking again..........not to mention age has some effect, ,just ask my wife who never did any of that stuff......
as for education, that's probably why it took me 4 years to get a 2 years degree and another 3 years, 15 years later to get another......which should have taken 1-1/2
party hardy......
at least I don't drink..........
 
 
Craigzbrand
Senior tube assistant
Posts: 132
(5/25/05 2:13 pm)
Reply  Re: 5F1 chassis
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 Just wanted to let anyone that's interested know that the Schedule 40 board layout will fit nicely into a 5F1 repro chassis. The actual 5F1 board length is roughly 5.25", and using Doug's board layout, it is possible to squeeze everything into that amount of space if you use the Illinois pwr supply caps (probably not with 16 or 20uF Atoms). It is tight, so if you like more space between components on the board, a couple suggestions: fly the 1K screen resistor straight off the 2nd pwr supp cap to the EL84 socket; hang the NFB resistor between the 12AX7 socket and the spkr jack's tip terminal. Also, remember if you're using the choke instead of a resistor, there will be a couple holes to drill. CraigB
 
Van
Junior tube assistant
Posts: 65
(5/26/05 8:00 am)
Reply  Econoline
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 "..... Bruce Berry was a workin' man, he used to load that Econoline van, etc." Neils' favorite 5E3 mod is to drop his down a flight of stairs after a show. He claims the tone is greatly improved. I can't seem to find any mention of this mod in the G. Weber books.
 
ampcabinets
Senior tube assistant
Posts: 161
(5/28/05 5:29 pm)
Reply
  Re: Econoline
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 huh?
 
Van
Junior tube assistant
Posts: 69
(5/29/05 7:24 am)
Reply  Neils' mod
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 Just quoting a line from Neil Youngs' "tonight's the night". A while back, I read an interview with Neil where he talked about being so loaded after a show that he dropped his tweed Deluxe down a flight of concrete stairs. He claimed it sounded better after the fall.
 
 
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