pma

I see, but what is the reference level in those graphs? 0dBFS refers to what voltage?

Nice circuit. Do you have some measurements, like output noise spectrum?

When using small signal preamps for microphone, mc/mm phono preamp or discrete preamp, a low noise power supply is a must. Walt Jung and...

In the previous post I have shown comparisons in the time domain. Now I am attaching the frequency spectrum comparisons. However, in the...

Thank you for your comments. As you will see, I am familiar with them and also with the fuzz box commercial solutions. That is really...

I changed the TL071 op-amp for the fast OPA637 in the modified schematics (post #5). The result is much better behaviour at high audio...

Same here, but just for myself those ancient days (but I made some money making amplifiers during tech university years). My "old days"...

Nice to see DIY here! I made money back in HS and college making various fuzz boxes based on various "cookbooks" of the day. Some used...

Zooming further, at strong overdrive when the input was loud, I see always the exact same waveshapes after the clipping (per polarity...

@pma, Pavel, are you sure about the right side of R4 connection? Once the diodes start to conduct, the opamp goes open-loop because the...

@KSTR works well, thanks again, Klaus!

Hi Klaus, thanks, it seems to be o good hint at least in the simulation. As of now (original unmodified circuit), the clipping looks...

Probably similar circuit design like this, with the same issues.

Build your own DIY guitar fuzz box – fun project In essence, a fuzz box is a small amplifier that is designed to be overdriven. Any...

Speaker has high impedance at AM radio frequencies, not low (driver and crossover inductances). It is about coupling impedance, we do...