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Old 28th April 2003, 06:52 AM   #11
blip is offline blip  United States
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Quote:
Originally posted by planet10


That is actually my drawing and it doesn't actually specify.

dave
I guess I just assumed it was audio taper.... ah well.


Quote:
Originally posted by Peter Daniel
I will try to built Joe's circuit and see how it compares sonically
I look forward to hearing about that.

Thanks for your help all.
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Old 5th May 2003, 05:20 PM   #12
Nuuk is offline Nuuk  United Kingdom
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If it's not a stupid question, which part of the pot affects the feedback of the Gainclone?

Is it RX, RY or both of them together?

The reason that I ask is that I am using a stepped attenuator of the shunt type with a fixed value for RX.
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Old 5th May 2003, 09:06 PM   #13
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Quote:
Originally posted by Nuuk
If it's not a stupid question, which part of the pot affects the feedback of the Gainclone?

Is it RX, RY or both of them together?

The reason that I ask is that I am using a stepped attenuator of the shunt type with a fixed value for RX.
Both ultimately. I assume you're referring to the inverted Gainclone, yes?

The parallel value of (RX + Rsource) and RY is in series with and adds to the input resistor of the opamp and if this total comes to less than 10 times the value of the feedback resistor, you could be looking at stability problems.

With an attenuator such as yours, the worst case would be at full volume.

se
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