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No sound at all on double-checked superbasic distortion circuit...
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Vicc:
I want to thank everyone for your input. Adhering to the forum rules, I didn't state that I'm a total newbie but you guys won't believe it even if I told you so... THIS CIRCUIT was used by probably the most innovative american musical instrument manufacturer of the 70's: Electra Guitars https://www.electraguitar.com/pages/history

I replaced the 2.2MΩ with a 470R though, still nothing. But when I changed that back and then decided to use a 470Ω as the R2 resistor, I can now hear sound through the speaker, almost imperceptible even if I crank up my amp's volume from 10 to 11 and that's definitely no distortion at all! The only logical explanation, at least for me, lies in those 1/2-watt resistors I'm using, so I'll post any update as long as I acquire some of those pesky 0.25-watt resistors...
bob91343:
The power rating of the resistors won't matter.  Your change from 2.2 meg to 470 Ohms is too radical.  Try 1 meg and other values in that general range.
John B:
Changing the 68k to a 470R drastically lowers the output impedance. Did you specify what load on the output this circuit was driving? Maybe the 68k produced no sound because your output is quite loaded.
Vicc:
Specifying a load? Sorry John B, I don't understand.

Using the 470Ω as the R2 resistor, Vbe voltage is 0.49 when meter is on 20V DC mode (red probe on the base and black probe on the emitter)...
John B:
As in, what did you connect the output of the circuit into?
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