[Hallicrafters] Re: HT-37 refurb/troubleshooting

[John D'Ausilio]

Thanks for the many replies.

On the topic of solid-stating the PS .. I see the Weber devices for
$22 and the Pete Dahl ones for $8. I'm assuming the Dahls are just
diodes and the Webers have other stuff, dropping resistor, something
to limit inrush? I hate to spend $22 for some 1N4007's and a resistor
:)

jd

On 1/29/07, John D'Ausilio <jdausilio at gmail.com> wrote:
> Good evening ..
>
> I've accquired an HT-37 to use with my Drake 2B, and it's in less than
> operable condition. It seems to work OK on 20 and 80, with some ripple
> in the tone. Nothing on 40,15,10 so there's evidently an issue with
> the heterodyne oscillator. Will be ordering caps to clean up the PS.
>
> I pulled it out of the case and took a look at the bottom and see lots
> of black around the bases of the two rectifier tubes. Doesn't look
> like anything's blown up in the area, and HV measures OK .. wondering
> what all the blackness might indicate.
>
> Any other hints/clues/part source info appreciated :)
>
> de w1rt/john
>