Recent content by Chuck D. Bones

The order of EQ & distortion stages is different with different brands. Fender puts the tone stack before any stages that produce distortion (unless you overdrive it with a booster).

That's up to the guy who runs this website. You can put it on the Wishlist.

Compare it to the Colombo Plexi Breed and decide for yourself. I do not place too much trust YouTube demos. Too many unknowns. ROG made two other Marshall emulators: Thor & Thunderchief. Both are JFET based. Menatone made a fairly complicated JFET MIAB, the King of the Britains(sic). And...

TLC2272. We want a rail-to-rail opamp, preferably FET input. LT1490 should work, haven't tried it. TLV2372 is the most economical, at least here in the US.

I only hear the hiss on my original Thunderbird when GAIN & TONE are cranked. I expect the noise to be variable from unit-to-unit depending on wire routing and parts quality. To quote Runoff Groove: "Some fans of our past JFET circuits may be ready to dismiss this project, thinking we have...

This one is less noisy. By boosting the gain in the input stage, I was able to reduce the gain in the 2nd & 3rd stages. One of the ways to minimize noise is to apportion as much of the overall gain as possible to the 1st stage.

Schematic updated. I moved the MORE switch to a better place in the circuit. It's done. Finito. Fertig. Fini. Finalizado. 終了した.

those kilometer-long cables might invite crosstalk.

I think 50 to 70 is a good range. If you want to cut the treble content a bit, consider increasing C5.

OK, a little off-topic, but hey, glad you like the breadboard. The base is a stainless steel pan I bought at Daiso, you can also get them on Amazon. The pot bracket I machined from 2" aluminum box tubing. Picked it up at a local metal supply warehouse. I cut it in half length-wise to get two...

Wasn't Purple Cat some acid that was going around San Francisco in the '60s? 😵‍💫 Something to keep in mind when using LEDs for clipping: some of them have a parallel diode to protect against reverse voltage. Check them before installing them or you may not get the tone or volume you expect...

I built one of these a few years back and my only complaint is the hiss. I replaced the aluminum caps with tantalum and it helped, swapped out a couple of opamps, but none of it made much difference. With the GAIN & Tone turned up there was too much hiss. Other than that, it is a sweet...

As-drawn, that circuit won't work and in any case is off-topic. Let's try to keep the discussion to the Monarch. Thanks.

I would not try a Sag control on the Viceroy. But don't let it stop you.

The MID switch affects the gain mainly at the mid frequencies, however the left position produces boost over a very broad freq range. I intentionally reduced the bandwidth of the 3rd stage because there is very little going on above 10KHz. Output transformers and speakers all roll-off in the...