SOLVED EAE diy Beholder issue

estucky

estucky

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I have assembled the diy board and got nothing when I fired it up the first time. Been tracing the circuit with an audio probe and found a couple of loose joints, reflowed and still nothing. I keep poking and it leads me to the transistors, specific Q1. The signal ends there. Using continuity on the multimeter I know the connection continues on to Q2, but it also appears that they am not getting any voltage to the base of Q1?!? Would this not be required to turn "on" the transistor?

Any other builders who have attempted one of these have any suggestions. I feel a bit stymied.
 

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p_wats said:
Apologies if this is a dumb question, but it looks like you don't have 2 of the transistors installed. I assume you've tried it with those inserted?
Click to expand...
In today's world, this is not a dumb question. The picture was taken in the current state of my bench. That said I have 2x 2N2222 transistors for those sockets. I ran downstairs to plug them back in and take another picture...when to my surprise, I was getting 1V on the base of Q1 when installed.

What I had not considered is that the transistor would pull a current when installed! I had actually reflowed a couple of points last night before bed and not fully tested the pedal. Well, it appears to be fully functional now. Soooooo, your question was definitely not a dumb one.

TL: DR... In frustration, I trouble shot, didn't fully test, went to bed, woke up angry and posted. P_wats points out the obvious, I reinstall transistors...problem solved.

I will mark this solved and see myself out :). Thanks for the help.
 
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