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[TenTec] TT 210 psu

To: TenTec@contesting.com
Subject: [TenTec] TT 210 psu
From: ROLAND HOWELL via TenTec <tentec@contesting.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 27 Jun 2022 11:10:42 +0100 (BST)
List-post: <mailto:tentec@contesting.com>

Hi all
I recently sold a TT 210 power supply having tested it, as i always do, before listing and subsequently selling. The new owner commented on how well it was packed but then started to doubt my parentage, my honesty and a host of other things that are not printable.

What happened was that before hooking up to his radio he tested the NO LOAD voltage which was approx 23volts, i sent him a refund and paid for the return of the unit.

I tested it and sure enough 23 volts on the fluke 73, however when i attached it to my dummy load at 1.5amps it immediately dropped to a whisker under 12volts which is close to the rated output.

Wanted to keep it it as original as possible internally, this of course may not be possible, i renewed 99% of the components, still same result.

Is this normal?

Or should i rebuild it using more modern components, a 7812 or 7815 etc.

As usual any and all thoughts/advice welcome

Thanks, Snowy G0HZE

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