Hello everyone!
Thank you already for taking the time to even look at my problem.
I built the Low Tide as a third build and while both the Son of Ben and Duocast turned out spledid this one gives me a headache:
When the output is connected to an amp and I connect it to 9V power it first starts making soft noises like – even if it may sound stereotypical – soft waves on a shore. Within a few seconds it starts producing a heartbeat-like popping sound „du-dup…. du-dup… du-dup…. repeat“. But it never passes a meaningful signal while engaged (LED on).
I got as far as identifying that IC1 (the LM78L05) becomes very hot and if i cool it a bit the popping sound disappears. The „output“ lug of the IC measures only 1,3V against the common lug.
So, since I understand it should supply 5V I suspected I might have fried the IC soldering it and ordered a few replacement LM78L05s, alas to no satisfactory resolution: New voltage regulator, the same problem.
So I suspect I must have messed up somewhere else. Do you have an idea where that might be or provide me with a strategy to debug this issue?
Attached you’ll find some pics of the front and back. I singed capacitors 36, 38 and 30 a little desoldering the IC but they still measure fine and while the 1M double pot is quite close to the back of the PCB it doesn’t touch and short anything there.
If I should supply any additional information, let me know.
Thanks again for reading and I’m looking forward to ideas.
Thank you already for taking the time to even look at my problem.
I built the Low Tide as a third build and while both the Son of Ben and Duocast turned out spledid this one gives me a headache:
When the output is connected to an amp and I connect it to 9V power it first starts making soft noises like – even if it may sound stereotypical – soft waves on a shore. Within a few seconds it starts producing a heartbeat-like popping sound „du-dup…. du-dup… du-dup…. repeat“. But it never passes a meaningful signal while engaged (LED on).
I got as far as identifying that IC1 (the LM78L05) becomes very hot and if i cool it a bit the popping sound disappears. The „output“ lug of the IC measures only 1,3V against the common lug.
So, since I understand it should supply 5V I suspected I might have fried the IC soldering it and ordered a few replacement LM78L05s, alas to no satisfactory resolution: New voltage regulator, the same problem.
So I suspect I must have messed up somewhere else. Do you have an idea where that might be or provide me with a strategy to debug this issue?
Attached you’ll find some pics of the front and back. I singed capacitors 36, 38 and 30 a little desoldering the IC but they still measure fine and while the 1M double pot is quite close to the back of the PCB it doesn’t touch and short anything there.
If I should supply any additional information, let me know.
Thanks again for reading and I’m looking forward to ideas.
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