Anderton Tremolo - volume increase?

Started by Bucksears, December 10, 2006, 11:18:54 AM

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Bucksears

Is there any way to increase the amount of volume when the Anderton Tremolo is engaged? On the 'hard' setting, the volume barely matches unity when it's maxed out.

Thanks,
- Buck

Seljer


Mark Hammer

The gain of U1B is set by the ratio of the feedback resistance (R6) to the combined input resistance of R3/R4/R5 and OC1.  We know that when OC1's resistance goes VERY low, in parallel to R3 and any setting of R4, that at least R5 will keep the gain of U1B held constant at x4.7 (4k7/1k).  If that overall combined input resistance stays higher than 4k7, though, the gain will be *less* than 1 (i.e., volume loss.

Since the actual gain of U1B depends on so many circumstantial factors, I suspect the smarter move is just to up the gain of U1A by increasing R2 a bit.  A 220k resistor rtaises that gain from unity to x2.2, which should be enough, and easily adjustable with the volume pot.

Bucksears

Thanks guys. I'll give these a try in the next day or so.

- Buck