Is there a missing bleeder resistor? I wouldn’t think 1.5A is required for good
regulation but perhaps it just needs more current.
Shawn kb1ckt
Sent from my iPhone
> On Jun 27, 2022, at 6:18 AM, ROLAND HOWELL via TenTec <tentec@contesting.com>
> wrote:
>
>
> 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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