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Onto the beutiful blast from the past in need of some serious TLC...


Link555 Wed, 05/27/2020 - 20:14

Depends on your comfort level. For the threshold you replace a resistor with a pot and smaller series resistor. The attack is probably the most tricky only because of the ratness daisy chained wiring, you have to be mindful of how you place the attack pot in the circuit. In this circuit it is there to slow the charging of c1. The release is a stepped resistive ladder that drains the charge on c1. It takes time to sort out the wiring, but once you find a good spot, it's easy enough. These mod require a solid understanding of the circuit and decent soldering skills. Not to mention the basic safety protocols when working on 300vdc circuits.

Link555 Mon, 06/08/2020 - 17:08

Starting to come together now.... the db compression vu was dead and I could not resurrect it.... so I cannibalized an old power meter and careful fit it inside the original enclosure ... certainly not for the faint of heart. I tuned the meter with a resistive divider and it live once more.

Now to drill the holes for the attack, release and threshold controls....