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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: How important is the bypass resistor on a stepped attenuator posted by airtime on August 11, 2014 at 06:26:21:
I do this in a tube preamp with a Texas Components TX2575 fixed resistor and a variable Silonex light dependent resistor(LDR) in the shunt position. By varying a 5V voltage across the LED of the LDR you can adjust the working range of the LDR to whatever you need to achieve your desired range of attenuation. This approach(see Lightspeed attenuator in DIY forum threads) easily surpassed a Shallco series attenuator.
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Follow Ups
- RE: How important is the bypass resistor on a stepped attenuator - Dave Garretson 07:09:46 08/12/14 (0)
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