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RCA 621ts Restoration

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#11

02-12-2012, 05:19 PM

tubesrule

VideoKarma Member

Join Date: Jul 2004

Location: Michigan

Posts: 331

I'm not sure why they show that. The voltage on the focus anode is going to vary between 1475V and 2250V based on the resistor values shown. The RCA spec sheet for the 7DP4 says it should average around 1800V for 7500V operation. Definitely need to use cation and a high voltage cap.

Darryl

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