2-6V6 ODS suggestions, Main Board completed

[Bob-I]

EDIT:

I'll be posting build pics as I go. 11-21-13 I have the main board built. Waiting on the OT to finish the wiring, meanwhile I'll be starting on the PS board and rectifier boards.

I forgot how much fun/how frustrating this all is.


After finishing up my bluesmaster several years ago I've spent more time playing and almost 0 time building. I've decided to get back into it.

I have a 2-6V6 ODS I built into a Princeton chassis maybe 5-6 years ago. It sounds good, not great, but I like the size and power. I'm going to take this amp apart and re-use many of the components to build a similar amp with reverb. I'll use an Allen Princeton reverb chassis because I have a 1x12 combo cab for it and it's the right size for what I want.

So the question is which generation to build? I'm a big fan of the 183 tone but that's EL34s and the PT won't support them. I have a few HRM amps so that ground is covered.

Thoughts?

Thx in advance

Old layout http://www.sweettoothband.com/temp/PrincetonDumble.jpg

Corrected layout http://www.sweettoothband.com/temp/Prin ... 20v1.1.jpg

[wjdunham]

After finishing up my bluesmaster several years ago I've spent more time playing and almost 0 time building. I've decided to get back into it.

I have a 2-6V6 ODS I built into a Princeton chassis maybe 5-6 years ago. It sounds good, not great, but I like the size and power. I'm going to take this amp apart and re-use many of the components to build a similar amp with reverb. I'll use an Allen Princeton reverb chassis because I have a 1x12 combo cab for it and it's the right size for what I want.

So the question is which generation to build? I'm a big fan of the 183 tone but that's EL34s and the PT won't support them. I have a few HRM amps so that ground is covered.

Thoughts?

Thx in advance

I've had great success with either a #102 or #124 preamp into a BM PI with the 2x6V6 power tubes. The clean channel breakup is killer if you're into that sort of thing. It's definitely not #183 tone-wise, but I don't think you'll get too close to that with the 6V6 power tubes, the power amp just won't have anywhere near the same frequency response. I have some video of one that I just build, as soon as I can get it in a form to upload I'll post it here so you can get some idea what it does.


Bill

www.sebagosound.com

[Bob-I]

After finishing up my bluesmaster several years ago I've spent more time playing and almost 0 time building. I've decided to get back into it.

I have a 2-6V6 ODS I built into a Princeton chassis maybe 5-6 years ago. It sounds good, not great, but I like the size and power. I'm going to take this amp apart and re-use many of the components to build a similar amp with reverb. I'll use an Allen Princeton reverb chassis because I have a 1x12 combo cab for it and it's the right size for what I want.

So the question is which generation to build? I'm a big fan of the 183 tone but that's EL34s and the PT won't support them. I have a few HRM amps so that ground is covered.

Thoughts?

Thx in advance

I've had great success with either a #102 or #124 preamp into a BM PI with the 2x6V6 power tubes. The clean channel breakup is killer if you're into that sort of thing. It's definitely not #183 tone-wise, but I don't think you'll get too close to that with the 6V6 power tubes, the power amp just won't have anywhere near the same frequency response. I have some video of one that I just build, as soon as I can get it in a form to upload I'll post it here so you can get some idea what it does.


Bill

www.sebagosound.com

Thx Bill. One of the reasons I like the 6V6s is the clean channel breakup at reasonable volume. Yea, I know the 6V6s will never sound like an EL34 but the PT simply won't support them.

I'd love to see a vid!

[wjdunham]

Here's a vid of the 25W 2x6V6 amp, has a built in Dumbleator and reverb. Reverb is in the FX loop in parallel with the external jacks. Guitar straight in to the amp. WGS Veteran 30 speaker which I've compared with Celestion Heritage series Greenback, every bit as warm and juicy with as the Celestion. This one is roughly #102 with a more BM-like (470R/10K setup) PI.

http://www.youtube.com/watch?v=9BbQrvO8 ... e=youtu.be

Enjoy,
Bill

[Bob-I]

Here's a vid of the 25W 2x6V6 amp, has a built in Dumbleator and reverb. Reverb is in the FX loop in parallel with the external jacks. Guitar straight in to the amp. WGS Veteran 30 speaker which I've compared with Celestion Heritage series Greenback, every bit as warm and juicy with as the Celestion. This one is roughly #102 with a more BM-like (470R/10K setup) PI.

http://www.youtube.com/watch?v=9BbQrvO8 ... e=youtu.be

Enjoy,
Bill

now THAT'S what I'm talking about. I love the way it cleans up just to the edge of breakup with the volume control. I don't expect to put a Dumbleator into it because of the chassis size.

I agree with you on the Veteran 30 and WGS speakers in general. I currently have an ET65 in a Princeton and where it not exactly the same an a 12-65, it's just as sweet and juicy.

[Colossal]

Nice sounding amp Bill! Punchy and clangy. Good to see you around Bob!

[Bob-I]

I completed the layout, take a look, critique welcome.

Hmmm...maybe the attachment is too big. I linked to it in the first post.

[M Fowler]

Nice looking layout Bob, using precision PS this time, nice.

Looks the drive pot is miss labelled should be 100KA?

Mark

[Bob-I]

Nice looking layout Bob, using precision PS this time, nice.

Looks the drive pot is miss labelled should be 100KA?

Mark

K ... M ... what's the difference

Thx for looking. I have the precision PS in my last 2 builds so I figured I'd use it again, plus I have a bunch of the radial caps left over.

[Bob-I]

Wow, 340 views and 4 replies, this forum has changed over the past few years.

In any case I ordered come gargolite and small parts today so I'll be starting on this in a week or so.

[mauiboy81]

Nice layout! You have 33k/500p on v1b grid instead of 220k/500p.

Nick

[Bob-I]

Nice layout! You have 33k/500p on v1b grid instead of 220k/500p.

Nick

good catch

[mauiboy81]

Also, your gnfb/pres is 100k/390 w/ 15k pot and .01uf film.... Looks like a blend of different designs. BM would be 100k/4k75 w/ 25kL pot and .1uf film.


Edit: You'll need 1M from reverb driver grid to ground.

[Bob-I]

Also, your gnfb/pres is 100k/390 w/ 15k pot and .01uf film.... Looks like a blend of different designs. BM would be 100k/4k75 w/ 25kL pot and .1uf film.


Edit: You'll need 1M from reverb driver grid to ground.

Ya see, that's why I love this place. Both of those issues would've been problems.

The PI was taken from a BM layout, there are several versions posted, I'll a have to revist that, but now that you point it out it doesn't seem even close to correct. The 1M was an oversight, but woulda been a pain to add an eyelet later.

[markusw]

Very nice layout! My layouts never look that tidy

Do you have 100k/2k2 for the reverb recovery on purpose?