[Milsurplus] [ARC5] BC-348 PSU questions

[Kenneth G. Gordon]

On 2 Oct 2015 at 16:39, WA5CAB at cs.com wrote:

> 
> If you get just over 6 VAC on the two green wires with 115 to 120 VAC on the two
> black wires, that agrees with typical power transformer color codes and would be
> a large coincidence in an audio transformer. 

I absolutely agree! :-)

> Plus 0.2 ohms in a winding that
> produces 6.3 VAC sounds reasonable.  In an audio transformer you would only see
> something like that in a voice coil winding and I can't think of a good reason
> to internally connect a VC winding to a Hi-Z one.

Me either.

> My guess (and especially if it came from Heathkit) is that it's for some piece
> of test equipment.

Ah! I had not thought of that, but that sounds most plausible.

>  And the only ways I can think of to determine which of the
> green wires is the one actually connected to the HV winding is to either to open
> up the transformer and actually look at where the wires go or to have an
> ohmmeter that can actually resolve 62 ohms from 62.2 ohms.  You can't do it
> with a voltmeter because  you don't know whether the connection is buck or
> boost.

Yup.

> 
> I agree with Ken.  Tie a line on it and use it to anchor your skiff.  :-)

A "canoe-anchor", surely. ;-)

Ken W7EKB