BOZ volume control

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Dan,
Assuming that you don't intend to drive your preamp from a power amp(!), 1/2W will be fine.
How many steps is enough?
Lots.
I don't think I could live with only 12 steps. Even if you accept the first step as being on the order of 20 or 30 dB, twelve steps isn't going to give you a lot of control. I wouldn't even consider a step larger than 1 dB; most manufactured units seem to be headed for .25 to .5 dB per step. Even the less expensive gear tend towards 20-24 steps, with the more elaborate setups going for 256 steps.

Grey
 
Would this be of benefit to sound quality?
I will be using a rather poor quality carbon track dual gang for the volume control until I can afford (time and money) to get something better.

"Wire your pot as a shunt ...
Most people have their pot wired as a series element.

To rewire as a shunt, choose a fixed series resistance, say 10-20KOhm (get a relatively decent one). Hook up pot so that it "shunts" the output (after resistor) to ground. Thus you need 0 Ohms at zero volume setting, probably 50-100K (is this not what your pot is?) when turned up all the way."

Originally posted by Petter in another Pass linestage volume control thread.

Dan
 
Volume control for BOZ

ding,

Try this pot from Farnell Components part number 3071145. It's a small PCB mount conductive plastic Spectrol 5k log pot. I used it for my BOZ preamp and have found no fault with it. And it costs 'only' approx US$2.50! Have fun!
 
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