Tweed Overdrive Special Jr.

[10thTx]

A few years ago, DaGeezer and I worked together to come up with the Tweed Overdrive Special which used a simple 5E3 vol/tone control in the "clean" channel.

Recently, Doug Hoffman announced that he is going to carry a small "lunchbox" sized chassis. 12X 6.5 X 2.5

http://el34world.com/Forum/index.php?topic=17502.0

I was pondering different designs that could fit inside that tiny chassis and came up with this idea. It might be cool to get a nice overdrive amp in a small chassis like this? I've attached a editable SCH schematic and layout.

I'd probably try a 12AY7 in V1 and a 5751 in V2.

NOTE: I think Doug will be carrying 8pin hole to 9 pin hole adapters? You would use that for the 3rd 12A_7 hole. The paralleled board would be about 7.38" (using a typical 28 hole tagboard as reference).

With the interest in the Tweedle Dee stuff, maybe this would be of interest to someone also?

With respect, 10thtx

[EL34]

Thanks,
Can't wait to get this chassis in stock and see what you guys come up with.

Still waiting on the final pricing figures and the delivery date

[Teleguy61]

Doug and 10th, this is cool stuff.
Keep it coming.
Love the idea--2X6V6 or 2XEL84 and an efficient speaker is pretty loud.
Thanks.

[ToneMerc]

10th, can you post the layout in the GIF format?

TIA

TM

[10thTx]

10th, can you post the layout in the GIF format

Sure. Check for errors and compare with schematic. IF there is a discrepancy, then go with the schematic.

With respect, 10thtx

[10thTx]

The original TOS had a 12A_7 triode into a 5879 which this JR version does NOT have.

Having said that, I think it will sound somewhat similar to this tone which was recorded with an original TOS (with 5879 pentode) and using 6K6 tubes:

http://www.soundclick.com/player/single ... i&newref=1

I think the amp has some reasonably decent overdrive and tone for a tiny amp.

With respect, 10thtx

[Synchu]

This looks great as usual.
One more to the list of pending builds - I seem to lately like 6L6 better, so maybe I'll do a Sr. version.
Niki

[ToneMerc]

10th, can you post the layout in the GIF format

Sure. Check for errors and compare with schematic. IF there is a discrepancy, then go with the schematic.

With respect, 10thtx

Thanks, I'm going to build a 5881 version in a 5E3 style chassis with other changes. The caps will be mounted in a small Fender doghouse.


TM

[10thTx]

Thanks, I'm going to build a 5881 version in a 5E3 style chassis with other changes

I think that could be very cool & sound great!

IF you do build it, please post a review of the tone (or preferably a sound clip) so others can decide if it would be a good choice.

With respect, 10thtx