Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: davidwpack on March 11, 2019, 12:16:56 pm

Title: New amp
Post by: davidwpack on March 11, 2019, 12:16:56 pm

oi! Just finished this one. Tolex was a bitch and I'll probably never do stripes again. The blue and green switches have orange bulbs. What's the point in making them blue and green? Otherwise...pretty good I guess. My heater wiring has improved but still barely above being atrocious. I've built this amp before. The schematic is in the schematic area here. Anyways here's a few pictures.

Title: Re: New amp
Post by: davidwpack on March 11, 2019, 12:18:12 pm

couple more

Title: Re: New amp
Post by: davidwpack on March 11, 2019, 12:19:31 pm

another couple

Title: Re: New amp
Post by: DummyLoad on March 11, 2019, 12:24:35 pm

very nice!  :icon_biggrin:


--pete

Title: Re: New amp
Post by: John on March 11, 2019, 12:38:03 pm

Sweet! How do you do your decals?

Title: Re: New amp
Post by: davidwpack on March 11, 2019, 12:45:23 pm

Thanks guys. They're water slide decals. Ya just make your lettering in word pad and print them out on the water slide decal paper, cut them out and apply. Put about 5 coats of acrylic clear coat over it. Avoid lacquer clear coat though, it has some weird reaction with it.

Title: Re: New amp
Post by: davidwpack on March 11, 2019, 12:47:44 pm

Oh, one more thing; I recommend a laser printer. Ink jets have a propensity of fading when you put them in water.

Title: Re: New amp
Post by: Papa Jim on March 11, 2019, 12:59:51 pm

That is great looking build there.

Title: Re: New amp
Post by: davidwpack on March 11, 2019, 01:05:55 pm

Thanks! Like I said though, I'm not sure if the tolex and piping was worth the amount of aggravation and fingers glued together. :icon_biggrin:

Title: Re: New amp
Post by: sluckey on March 11, 2019, 01:14:38 pm

Really nice project! Thanks for sharing.

Title: Re: New amp
Post by: davidwpack on March 11, 2019, 01:21:02 pm

Thanks Sluckey. I looked at your amps A LOT when I was building this for layout ideas.

Title: Re: New amp
Post by: davidwpack on March 11, 2019, 04:05:01 pm

Here are the "blue" and "green" switches. I wonder if the bulbs are replaceable?

Title: Re: New amp
Post by: tubenit on March 11, 2019, 04:30:51 pm

Magnificent!  What a great well done build!  Thanks for sharing.

I am posting your schematic from the schematic library that you referred to.

With respect, Tubenit

Title: Re: New amp
Post by: davidwpack on March 11, 2019, 04:53:39 pm

Oh ok. Thank you Tubenit!

Title: Re: New amp
Post by: Ritchie200 on March 11, 2019, 06:18:52 pm

Oh that is too cool!  Very nice!  Well done!  Sound clips?

Jim

Title: Re: New amp
Post by: davidwpack on March 11, 2019, 06:31:24 pm

Thanks! I'll try to get some sound clips before long. I'm still figuring out Fruity Loops. I may switch to different software. I don't really like Fruity Loops at all.

Title: Re: New amp
Post by: tubenit on March 11, 2019, 08:32:25 pm

Mixcraft Acoustica is a software that's pretty easy to use and they have free demo timeframes for users to try them out.   Audacity is a free software that's OK also & easy to use.

with respect, Tubenit

Title: Re: New amp
Post by: davidwpack on March 11, 2019, 10:08:53 pm

Ok. I'll check it out. Thanks!

Title: Re: New amp
Post by: Ritchie200 on March 11, 2019, 11:40:25 pm

Yeah I’ve used mixcraft for years, easy and cheap for full blown DAW. Of course cheap is relative but compared to similar full featured programs it is a heck of a deal.

Jim

Title: Re: New amp
Post by: synchu on March 11, 2019, 11:48:33 pm

Very nice build!


As for recording Tracktion DAW, has been recently released for free so you may consider it as well.
https://www.tracktion.com/products/t7-daw (https://www.tracktion.com/products/t7-daw)


Niki

Title: Re: New amp
Post by: davidwpack on March 12, 2019, 11:40:53 am

Thanks guys! I checked out those links. They look pretty good. I may just sus out the Fruity Loops. It's the signature studio version and I paid a good bit for it. I was recording on a Roland 24 track DAW and it seems like computer software is a nightmare comparatively. My music in my link below on reverb nation was recorded on the Roland. Roland is dead now. :sad2:

Title: Re: New amp
Post by: davidwpack on March 16, 2019, 02:26:36 pm

I've been playing around with this amp some. I've used the same OT (4.2k 40-50w) with both of these builds. This last amp is louder using the 8ohm out into a 4 ohm load. The 1st amp is louder using 4 ohms out to 4 ohm load. The only difference(s) is that the 1st OT had 2, 4, and 8 ohm taps and the new one is 4, 8, and 16. Also the new one is a Classic Tone and I believe the 1st one is generic. Is this something to do with using the center of the coil on both? Or just weird?..

Title: Re: New amp
Post by: MFowler on March 17, 2019, 07:42:38 am

Very good looking amp congratulations.


Mark

Title: Re: New amp
Post by: zendragon63 on March 17, 2019, 09:19:23 pm

Neat and sweet--nice build David.           dennis

Title: Re: New amp
Post by: davidwpack on March 17, 2019, 11:21:12 pm

Thanks guys!

Title: Re: New amp
Post by: davidwpack on May 07, 2019, 12:58:11 pm

Ellooo! I finished this cabinet for speakers finally. 6000 feet of piping to hide imperfections and it looks alright. Make sure your pine is absolutely not warped...or use plywood. That's ok, I'll add the leftovers to my retirement piping. I'm not used to closed back. if it's not up on my amp stand pointed to me it sounds weird. But yeah,,,sounds good. I like the 12" and 10" combination. Anyways I made 4 trips carrying this across the property for pictures and I'm almost dead. I hate piping and glue and different colors of tolex. Here's pictures

Title: Re: New amp
Post by: davidwpack on May 07, 2019, 12:59:16 pm

And here's the speakers I ended up with.

Title: Re: New amp
Post by: Ritchie200 on May 07, 2019, 09:14:51 pm

David:  :worthy1: :worthy1: :worthy1:

You promised sound clips! :icon_biggrin:

Jim

Title: Re: New amp
Post by: davidwpack on May 07, 2019, 10:08:45 pm

Yeah I know. One of my bandmates is supposed to come up next week and figure this Fruity Loops program out. I'll post something soon hopefully.

Title: Re: New amp
Post by: TIMBO on May 08, 2019, 04:56:40 am

Great work!

Title: Re: New amp
Post by: kagliostro on May 08, 2019, 12:42:30 pm

Nice Job :thumbsup:


Franco

Title: Re: New amp
Post by: davidwpack on May 08, 2019, 11:57:13 pm

Thanks guys!

Title: Re: New amp
Post by: davidwpack on May 09, 2019, 12:37:58 pm

Don't use the 4.3k OT if anybody builds this.  6.6k is much better. Possibly 8k? I'll change it on the schematic when I get my computer sorted out.