Ground Reference

Tubes Asylum

Questions about tubes and gear that glows. FAQ

In Reply to: RE: HK Citation One heater lines posted by Jim McShane on May 17, 2016 at 10:15:11:

"Only the phono stage tubes are grounded, just as it's shown in the schematic."

Right, but those connections are sufficient to reference all the filaments to ground. Without the grounds at the phono stages, all the filaments would float, and their common-mode noise contribution would be much more significant.

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Follow Ups Full Thread

Topic - HK Citation One heater lines - FenderLover 09:12:28 05/17/16 (6)

RE: HK Citation One heater lines - Jim McShane 10:15:11 05/17/16 (1)

Ground Reference - Triode_Kingdom 11:15:34 05/17/16 (0)

RE: HK Citation One heater lines - Alpha Al 10:01:57 05/17/16 (3)

This works for DC lines, too? - FenderLover 06:01:53 05/18/16 (2)

RE: This works for DC lines, too? - Alpha Al 11:00:33 05/18/16 (1)

Thanks! (n/t) - FenderLover 11:06:08 05/18/16 (0)

Follow Ups

Ground Reference - Triode_Kingdom 11:15:34 05/17/16 (0)

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