Friday 21 April 2023

JPTR FX Silver Machine




 


12 comments:

  1. Hey Anderssss, this popped up a couple of days ago. Might be of interest. https://www.freestompboxes.org/viewtopic.php?t=32613

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    1. Yeep, looks interesting.
      Here is the layout...:-)
      https://dirtboxlayouts.blogspot.com/2023/04/old-noise-endeavors-haunt-fuzz.html

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  2. Hmmm, my build has some strange interactions between the two gain controls. Many of the settings when adjusting one of the gain controls will cause a really small useable sweep on the other gain control before extreme gating mutes the signal. Other than that, I can get the gnarly octave up sounds, but I am not able to dial them all the way out. I am not too familiar with the circuit, so I am not sure if that is how it is intended to operate.

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    1. I was thinking of giving this a go last night and read your comment and stopped. I looked at the schematic provided. The only anomaly I could spot were 2N5088's annotated instead of the 2N5089's noted above. Maybe the extra gain from the 89's could be creating an issue.

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  3. Schematic would be nice to have, please!!!

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  4. Anyone thinking of tracing the jptrfx kaleidescope? That would be AMAZING!

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  5. But also....thanks for these. Very excited

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  6. So it's like 2 of the AMZ MOSFET boosts into a green ringer looks like?

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  7. I've seen gutshots of an early version and there were 6 diodes on the board that looked like 1N4148s, not 4. Maybe there was an additional clipping stage that was later eliminated?

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