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Tweed Man - Too dark

Kinski

New member
So with my set up, I’m finding the Tweed Man too dark. I have the treble control up all the way as well as the internal presence trimmer and it’s just barely bright enough.

What’s the best way to brighten or add more treble to this circuit?
 

Kinski

New member
Ugh, now the thing is all messed up. I don’t get it. All I did was simply remove C2. Easy job. No problem. I got more treble but now the circuit is way more distorted and the gain switch sounds wrong. I simply put C2 back. Treble went back down, but the circuit remained distorted and the gain switch still doesn’t sound right. I checked all the toggle switch positions and the components it switches in and out. It all checks out fine. Any idea? If I switch the toggle to the up position, the volume stays the same, there is just a big bass cut and no real increase in distortion.
 

zgrav

Well-known member
Did you socket the transistors on the build? If so, make sure all of them are secure and in position.
 

Kinski

New member
they are all SMD. They are secure. So strange. I had to run out for a bit. I’ll post some voltages later one.
 

Kinski

New member
The Transistor voltages with an 18v supply
Q1
1 = 9.2v
2 = 1.1v
3 = 0

Q2
1 = 17.89v
2 = 10.36v
3 = 8.54v

Q3
1 = 10.0v
2 = 1.36v
3 = 0v

Q4
1 = 17.89v
2 = 10.76v
3 = 8.53v

Q5
1 = 17.89v
2 = 10.03v
3 = 8.06

Do these seem ok?
 

daeg

Active member
Cranking the Presence trim didn't do it for you?

Tweeds are always going to be kind of woofy, bass heavy sounds but I'm surprised to hear that about this one which has 4 tone controls.
 

Kinski

New member
Thanks so much for all the help. You were right. That C2 to pin 2 of the switch was broken. I added a wire from pin 2 of the switch to the pad 3 of Q1 and it seemed to fix it. That should be fine, right? I don’t thinking I’m bypassing any components

Sadly, even without C2, the problem still stands that I’d like more treble. I’ve triple checked and all my components are correct. My issue might be that I’m not using this circuit as a pedal. I’ve paired it with a solid state 50w power amp (TPA 3116). So it’s basically a solid state head, using the tweed man as the preamp. It’s sounds great, and scarily close to the beautiful 5E3 that I built a few years back. But it’s just very dark sounding, even compared to my 5E3. Perhaps the power amps flat frequency response is not pairing well with this circuit. It’s so close to being REALLY GOOD, I just need it to be brighter.

9101C35B-1B2C-4E8B-B078-995146A83515.jpeg
 

Kinski

New member
For clean tones, I use the treble all the way up. For more distorted tones I roll the treble back. I also reduced C20 to the same value as C3 (22uf down to 4.7uf). Curious, what does C21 and C13 do? The higher gain mode has a much better treble response. I’d almost like to have the normal gain channel have the same EQ as the high gain channel, but without all the extra gain.
 

Kinski

New member
For clean tones, I use the treble all the way up. For more distorted tones I roll the treble back. I also reduced C20 to the same value as C3 (22uf down to 4.7uf). Curious, what does C21 and C13 do? The higher gain mode has a much better treble response. I’d almost like to have the normal gain channel have the same EQ as the high gain channel, but without all the extra gain.
 

Kinski

New member
Never mind! I had a chance to play at a louder volume today and it’s perfect now. I keep the treble around 1 or 2 o clock and it sounds great. Hate to admit that it competes with my tube amps!
 
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