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July 08, 2020, 04:31:35 PM

Author Topic: Bad 6080 tube  (Read 329 times)

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Online Paul Birkeland

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Re: Bad 6080 tube
« Reply #15 on: June 30, 2020, 08:58:18 AM »
Yes, the resistor trick is pre-attenuation. 
Paul "PB" Birkeland

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Offline freejazz

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Re: Bad 6080 tube
« Reply #16 on: June 30, 2020, 10:16:36 AM »
How does that account for the mismatch in the signal between channels in the volume pot? Is it only an issue of perception because of the log taper of the pot? Or does it actually correct the mismatch?

Offline Doc B.

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Re: Bad 6080 tube
« Reply #17 on: June 30, 2020, 10:48:15 AM »
It's difficult to exactly match the resistance on two tracks of an inexpensive carbon pot, particularly at the low volume end. The attenuators just require you turn the pot up higher for the same volume level, into a region where the carbon tracks are more closely matched.
Dan "Doc B." Schmalle
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Offline freejazz

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Re: Bad 6080 tube
« Reply #18 on: June 30, 2020, 11:35:29 AM »
Thanks. So it is a combo of the perception in the log taper and a physical correction. Cool.