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P
PJS
Active member
Joined
Jul 20, 2020
Last seen
Today at 3:58 PM
Messages
280
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P
PJS
replied to the thread
Digitech Death Metal (Does not stay engaged)
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OK, it looks like it is a FET switching setup, but the switching bit is mostly missing from the schematic. If you see the lower...
Today at 4:27 AM
P
PJS
replied to the thread
SOLVED
Gain pot not working. Help please.
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I don't know if that is the maximum gain you are supposed to get. I don't have one. I do know that I like the sound though. Will...
Monday at 4:14 AM
P
PJS
replied to the thread
SOLVED
Gain pot not working. Help please.
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Before I went about removing a dual gang pot I would be measuring it. Power off. Multimeter on ohms setting connected to the wiper and...
Sunday at 6:11 AM
P
PJS
replied to the thread
Power anomaly
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Where does the design come from? A drop of 3.77V across that resistor would indicate that the circuit is drawing just under 40mA. It...
Jan 19, 2023
P
PJS
replied to the thread
SOLVED
Here's video of Thermionic Deluxe whistling when I turn the volume pots passed 12. (Happens with or without input jack in)
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What are you using for a power supply? Try a battery clip soldered to a power jack and see if you still get squealing. Some power...
Jan 19, 2023
P
PJS
replied to the thread
Kliche Overdrive No Sound
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The wiring in the documentation is correct. You shouldn't be using a TRS cable, you need a regular mono guitar cable. Tip goes to the...
Jan 5, 2023
P
PJS
replied to the thread
Ocelot Octave subtle distorted sound
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If you are looking at parts of the circuit that are unique to -1, then on the schematic you are basically looking at R11 through Q2, IC...
Dec 16, 2022
P
PJS
replied to the thread
Obsidius (B3k) dies after briefly passing signal
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So, with level and drive all the way down you still get the tone? What happens with level down, drive down and then shift the mix from...
Dec 11, 2022
P
PJS
replied to the thread
Obsidius (B3k) dies after briefly passing signal
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Also, where did you get your J201s? They are notorious for being faked in TO92 packaging
Dec 11, 2022
P
PJS
replied to the thread
Obsidius (B3k) dies after briefly passing signal
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Don't go swapping out parts until there is some idea what the problem is. Does the oscillation occur at all settings of all controls or...
Dec 11, 2022
P
PJS
replied to the thread
Obsidius (B3k) dies after briefly passing signal
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It sounds like a capacitor is charging up and when it gets to full charge it is stopping the power supply. I would be checking the...
Dec 10, 2022
P
PJS
replied to the thread
SOLVED
Help me understand my audio probing
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I could be a bit wrong about my understanding, but my understanding of an op amp is that it works by sending a signal out the output...
Nov 12, 2022
P
PJS
replied to the thread
No sound from my muffin factory
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I plug an old MP3 player into the input jack using a 3.5mm to 3.5mm cable (standard MP3 player or phone audio cable) and a 3.5mm to...
Nov 5, 2022
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