Hallo Leute,
Ich kann Deutsch lesen, ich schreibe es aber leider nicht mehr so gut wie fruher. Deswegen werde ich mein Problem in Englisch beschreiben, ihr könnt mir aber einfach in Deutsch antworten!
Alright, so the Tonebender MKII is the second kit I'm building from Das Musikding, so I'm kind of a newbie to the world of DIY pedals. The first one I did was the Plexi-Drive, which worked at the second attempt, after I figured out I did the classic thing of soldering the in and output the wrong way around.
With the MKII I get sound in bypass, but when I engage the pedal the sound is gone but the LED is working. I've used an audio probe to find the issue while using a frequency generator. When I test at the output the frequency is still there but very quiet. After going through the signal path, I noticed the drop in volume when it gets to Q2, the second transistor, the capacitor before that (C4) is still loud. When I check with a multimeter (measuring from the bottom side at the solder joints), all three points of the transistor show up to 9v and the same goes for R8. However, on R6 I only get a reading on the multimeter on the side closest to the second resistor, the other side stays at 0 both from the solder point as well as the lead of the resistor on the other side.
Is R6 the problem (resistor not working) or might it be somethig with the transistor itself? From here on the sound is very weakend but still there up to the output, at least as tested with the audio probe. With a guitar I head nothing though. Who can help me figure out what to do next?
Kind regards,
John Nada