This is my slightly more spacious take on the original tagboard layout for the Baldwin-Burns Buzzaround. Same size board and the same layout; it's just spread out a bit more to take advantage of all the lugs available.
Hi Andrew, first off, thank you for sharing all this information, really amazing. I have just completed building this layout, have put sockets for the transistors. Weird thing is, I am only getting getting a sound when the collector of Q1 is not connected (loud fuzz and distoriton). why would this be happening? only change I have made to your circuit is using NPN transistors, so I swapped the relevant capacitors and diode.
Hello Hendrik - that is unusual. Do you have a multimeter to check voltages and a signal probe?
If you have a signal probe, I'd recommend disconnecting pin 3 from the Sustain pot, and using this point on the board as a test point. You should have a massive amount of level coming off the darlington pair (be careful testing).
If you don't, this narrows down the problem to the first stage - it does sound like a problem in the first stage, but it's good practice to work section by section where possible.
Thanks Andrew, appreciate the quick reponse. I have a multimeter, will see if I can track down a signal proble. Will see how I go, will let you know. thanks again!
Hi Andrew, first off, thank you for sharing all this information, really amazing. I have just completed building this layout, have put sockets for the transistors. Weird thing is, I am only getting getting a sound when the collector of Q1 is not connected (loud fuzz and distoriton). why would this be happening? only change I have made to your circuit is using NPN transistors, so I swapped the relevant capacitors and diode.
ReplyDeleteHello Hendrik - that is unusual. Do you have a multimeter to check voltages and a signal probe?
DeleteIf you have a signal probe, I'd recommend disconnecting pin 3 from the Sustain pot, and using this point on the board as a test point. You should have a massive amount of level coming off the darlington pair (be careful testing).
If you don't, this narrows down the problem to the first stage - it does sound like a problem in the first stage, but it's good practice to work section by section where possible.
Thanks Andrew, appreciate the quick reponse. I have a multimeter, will see if I can track down a signal proble. Will see how I go, will let you know. thanks again!
DeleteGood luck.
Delete