BossAreaForum

Nice! Thanks for the update.

Today I finally finished the repair of my friend's Roland JX-3P (needed a new power cord and a new backup battery, as well as intensive cleaning) and the KORG Poly-800 (backup memory modification, corroded battery spring replaced plus lots of cleaning and filter calibration). Both units are working...

Zerksies wrote: ↑

Wed May 15, 2024 2:53 pm

Are the preamps tubes under that silver plate? I'm only seeing one but the schematic is showing five

Yep.

Bottom line - at 300mA the 7809 regulator is dissipating 1.5W which is enough to cause a temperature rise that pushes the 7809 into thermal shut-down. With high draw pedals (e.g. my Strymons) I am experiencing random drop-outs due to over-temperature cut-out of the regulators. Running pedals with m...

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UPDATE - Caline CP205 power supply After using a couple of these power supplies for a few months and dismantling one to see what is inside, I can report the following. The 8 outputs are most assuredly isolated. There is no ground connection between them, or back to the power pack. Each output is su...

I finally decided to sell the Heartbreaker, so ran a bunch of tests on it to make sure everything weas working properly. It has always sounded good, but maybe a bit "thin" in places. Two of the toggle switches were malfunctioning, plus one of the input tubes was weak. Fixed all that and it is HUGE W...

I think it has been a busy year for many of us

This design allows for anything from 100% clean boost to 100% overdrive, with infinite blend possibility. Like a Klon, but you have control over the clean blend instead of it being "built in" (using a dual gang pot) in the Klon.
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