Buddy's Breadboard - Guvernator Distortion

[BuddytheReow]

Here is a breadboard layout of the stock Guvernator Distortion. Upon initial testing this is definitely close to a medium-high gain Marshall sound. You can alter the clipping diodes if you'd like, but most of what I've read elsewhere said that Marshall uses red LED clippers so I left it. The tone stack was a bit of a pain to wire up, but I enjoyed the experience.

I'm wondering how I adjust the gain higher, cuz you know, you can never have too much gain , but without altering the tone. My options are between opamp 1.1 and opamp 1.2. Opamp 1.1 I can alter the resistor values for R3 or the B100k pot, but am thinking if R3 is changed the feedback high pass filter will change. Changing the pot value to, say, a 250k or 500k maybe? Opamp 1.2 I think I can adjust R4 or R5, but wondering if either will after the filters. Perhaps R5 is better? I shall experiment when I have some time.

 

[Chuck D. Bones]

Looks good. You must have been playing LOUD when you took the 2nd pic.

The easiest way to up the gain is to make R5 bigger. That will increase the gain throughout the range of the GAIN pot. Go in approx 2X steps. Reduce C5 proportionately to keep the same treble response. Alternatively, you could reduce R4, but it makes the GAIN control more touchy at the top end. You might have to switch to C100K. If you reduce R4, increase C4 proportionately to maintain the same bass response.

 

[BuddytheReow]

Looks good. You must have been playing LOUD when you took the 2nd pic.

Trying to take pics with my tablet rather than my phone. Phone is easier, but for some reason every pic gets rotated 90 degrees when I post on this site. I was trying something new with my tablet.

Thanks for the Gain tips!

 

[Chuck D. Bones]

I'm old-school. I use a pocket-sized digital camera to take pix and a photo-editor (on a desktop PC) to rotate, crop and rescale images. I cracks me up that smart phones have 48MP cameras with optics smaller than a pea.