[R-390] R 392 T-602 bfo

[Dan Merz]

Hi guys,  with no answer,  I guess I'll take the next shortest route to my
question and hook it up - if it doesn't work,  I'll reverse the two leads in
question to get the phase correct.  At least I don't have to try 6
permutations,  hi.  Dan.

Dan Merz wrote:

> Hi,  I am puzzling over the three connections to the bfo unit out of an
> R-392 receiver,  T-602  type 70J-2.  Looking at the connections end on,
> the one first one starting at 9 oclock is the the number 1 connection
> going to the grid capacitor and the bfo pitch capacitor,  but then I'm
> not sure about the other two that are adjacent going clockwise.  I think
> the next one is the cathode connection (called number 3 in the schematic
> I have) and the most clockwise one is the ground connection (called
> number 2) in the schematic I have.  The schematic is from
> TM5820-334-35-13,  which is the only documentation I have in hand.  I've
> looked at the pictorals in this manual but can't convince myself about
> this conclusion from the appearance of the wiring because details aren't
> that good.  I did some resistance measurements but without knowing how
> the lower leg is wound (continuous with tap vs. additional coil wound on
> top of first) I don't really know how to interpret the measurements.
> Does anyone know the answer?  thanks,  Dan.
>
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