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 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

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PostPosted: 19 Dec 2017, 12:45 
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Joined: 06 Apr 2009, 10:08
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Location: US Pacific Northwest
Geek wrote:
I've been using Bourns 91.
What I'd really like to know about with the 91 (or 95) series is physical robustness.

I see that they have options for both plastic and metal shafts. But the running torque spec range seems rather large (0.3 to 1.5 oz-in). Does anyone have any experience with how well these hold up in a general use environment?

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PostPosted: 19 Dec 2017, 13:16 
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Joined: 08 Aug 2009, 03:11
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Location: Chilliwack, BC
"general use" should be fine. He who has customers with $35K systems aren't usually rough on them.

I did use some linear ones as bias pots in a Citation-II and they're taking the heat fine.

I have a guitar customers who "reef" on controls.... they get Alpha Taiwan pots! :D

Cheers!

*append*
Depending on the circuit configuration, the plastic shafts pickup less noise if the panel it's mounted on is "floating" as to ground, while the metal shafts are quieter with a grounded bushing.

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