Search results

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...

If the FNIRSI meter is anything like my CCTT, then it does not measure either Idss or Vp, it simply measures drain current at some arbitrary Vgs. I provide methods of measuring VP and IDss in this article. Bottom line: we don't have enough information to know if your PF5102s are legit or not...

Glad you like it! You said "I had made sure that Q2 had a higher Idss (0.67) than Q3 (0.43)." and "I tweaked R12 from 560 (where I was getting 0.9ma) to 330 where I got about about 1.5mA for Q2-S." First of all, those two statements are contradictory. By definition, Id can never be higher...

They differ in just about every way possible. The simple gain calculation is not accurate and the accurate gain calculation is not simple. Opamps have an open-loop gain of 100,000 or more. In linear mode, CMOS gates have an open-loop gain somewhere between 10 and 100. It varies with power...

How many photographers does it take to design a guitar pedal? 😁