Well, there you go.....and thanks. All good comments. I might just leave the 3B28s in the Valiant. Saving 25 watts of heat may, or not, have any real advantage. But, as I will be keeping this unit. I may well do the rear of cabinet fan. Oh... when I had my T-368, I ran it at and adjusted 115v. It ran cool with all voltages nominal.

Jeep K3HVG

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From: [email protected] <[email protected]> on behalf of B. Smith <[email protected]>
Sent: Monday, September 11, 2023 3:34:36 PM
To: [email protected] <[email protected]>
Subject: Re: [MRCA] Configuring solid-state subs for HV Rectifiers

The mercury vapor tubes look better and are more forgiving.

Z

http://k4che.com/866/866TESTJigpage1.htm

On 9/11/2023 7:21 AM, Doran Platt wrote:

This question may be rhetorical in nature and I should have put it to rest a long time ago. Nonetheless,

when directly substituting mercury vapor rectifiers with plug-in SS substitutes like the STBR3B28, et al, is it necessary or desirable to ensure that the HV take off is not wired to the original filament pin that would require the HV to pass back through the HV transformer filament winding? I know the winding has insulation for the HV and not the issue.

Fact is, I've always simply plugged them in and they work. Much about nothing? TNX

Jeep K3HVG
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