Ghost Device output issue

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cc0919
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Post by cc0919 »

Hi, I'm a little bit stumped - I grabbed a Ghost Device PCB recently (https://pcbguitarmania.com/product/ghost-device/) and built it the other day - however, there seems to be an issue where the output is drastically lower when engaged than when not engaged. Aside from that, I can hear the reverb, it seems to be working as expected (though I don't truly know, I've never heard one)

Swapped out the TL072s, PT2399, and the diode hoping it was something simple, but none had an effect. Doesn't seem to be any unnecessary grounds, bridges, or cold solder joints anywhere, so i'm not sure where to go from here, wondering if anyone has an idea of where to look (or maybe this is intended?)

The thing that worries me is that the board is listed as v1.2, where the build docs are v1.1.

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cc0919
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Post by cc0919 »

Just as an update for those who may stop by with similar issues - it looks like the 1M resistor at R12 listed in the docs needs to be something like 470r in PCB v1.2. That swap brought the output up to par

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