Verified with a few minor fixes: add cut M7, resistor N11-B11 should be 15k, not 2.2K, input row G under treble 3. Sounds great, I used Blue LEDs with plenty of breakup. Thank you Anders!
I make it too. Sounds ok is good but I have some issues. First of all for j113 , I used bf245b . And for the gain knob I use 1k linear , I don’t find C .. the problem is , when the turn the gain knob nothing change , also I put my oscilloscope to see something for change when I dial the gain knob , but nothing . And also I don’t see on my oscilloscope any “clipping” of signal from leds . But the signal pass from every path correctly .. any idea ?
Everything’s fine guys , I solve the problem , I had some issues with my voltage generator , I fix it , and the sound amazing , and for the bf245b that I used , biasing to 4.5 vdc.. sound very good !!! Thanx !
Verified with a few minor fixes: add cut M7, resistor N11-B11 should be 15k, not 2.2K, input row G under treble 3. Sounds great, I used Blue LEDs with plenty of breakup. Thank you Anders!
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ReplyDeleteI make it too. Sounds ok is good but I have some issues. First of all for j113 , I used bf245b . And for the gain knob I use 1k linear , I don’t find C .. the problem is , when the turn the gain knob nothing change , also I put my oscilloscope to see something for change when I dial the gain knob , but nothing . And also I don’t see on my oscilloscope any “clipping” of signal from leds . But the signal pass from every path correctly .. any idea ?
ReplyDeleteEverything’s fine guys , I solve the problem , I had some issues with my voltage generator , I fix it , and the sound amazing , and for the bf245b that I used , biasing to 4.5 vdc.. sound very good !!! Thanx !
ReplyDelete