[Hallicrafters] Source for multisectional electrolytics?

[Dave Moorman]

It's been a while since I've worked on an S-40A, but here are a couple of
ideas.  If you can still read the value of the resistor, Cary, that will
help to identify it's role.

If a resistor leading from the filter cap is too hot, that's an indication
that another component farther down the line is drawing excessive current.
If it's between a section of the cap and the rectifier tube, then the filter
cap could be leaky.

R32, 1500 ohms at 10 watts, wirewound, is designed to dissipate several
watts and will likely be running hot in normal operation.  1500 ohms is
brown/green/red, but since it's a wirewound resistor, it will probably have
"1500" printed on it.

If the BFO is not working but the right voltages are there, a first step
would be to check the 6J5.  The other likely culprit is a .01 mfd paper cap
connected from the plate of the 6J5 to ground - the plate bypass cap.  If it
is leaky it's going to pull the plate voltage of the 6J5 down.

Dave


> From: Cary Fries <nowvoyager3 at bis.midco.net>
> Date: Fri, 26 Apr 2002 23:40:15 -0500
> To: hallicrafters at mailman.qth.net
> Subject: [Hallicrafters] Source for multisectional electrolytics?
> 
> I think my S-40a needs a new filter cap...there's a resistor coming off of
> the cap that is hotter than blazes and looks like it's been scalding for
> some time.  There's only a slight buzz in the speaker though.