Tweed OD Plus

[10thTx]

In an effort to return the generousity of this forum, I thought I'd share these D-style inspired ideas for consideration.

Other than the TS1 & TS2 tone switching idea, I have built all of these ideas into one amp or another.

However, I have never done both a OD and PLUS style design with two different OD channels.

There are two "Plus" drive designs. One with 12AY7 and one with 5879.

CHECK for ERRORS!

With respect, 10thtx

[Luthierwnc]

Looks like fun. Do you plan to do the switching with relays or on the panel? I've really enjoyed the 5879 design you pioneered on the Hoffman board. Thanks, sh

[phalanges]

V1a plate R reads 120k?

[10thTx]

If I get around to building it ....... the clean, OD, PLUS & PAB would be relay switched.

Yes, 120k is correct on V1-1.

With respect, 10thtx

[da Geezer]

V1a plate R reads 120k?

As I remember, that came about by accident.....When I built my Tweed Bluesmaster, I reversed the V1A & V1B plate resistors by accident, making V1A 120k & V1B 150k. I realized my mistake & rewired them "correctly", but actually liked the "reversed" tone better, so I put them back to "wrong".

Tubenit used that V1 configuration for his original Tweed Overdrive Special (TOS), and I guess it has just stuck thru the different variations of the design(?)

G'zr

[Structo]

What kind of tone does the 5879 bring to the table?

[10thTx]

What kind of tone does the 5879 bring to the table?

It has more chime and some fatness that I don't hear in a 12A_7.

DaGeezer's TOS clip:

http://www.zshare.net/audio/786814058ef04507/

& my TOS:

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

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


With respect, 10thtx