Alex wrote:
>
> See, I do need a schematic to be able to give you a precise answer!
> If you are switching the Primary of a transformer and your fuses between the
> SSR and the transformer are blowing, I will suspect quite
> a HIGH Back EMF :) SSR are notoriously bad in switching INDUCTIVE loads :)
> You might need to insert a capacitor of the proper value in PARALLEL with
> the transformer. This capacitor will act as compensation for the inductive
> reactance of the transformer presenting a conjugate match that will leave
> you with the pure resistance only.
But...RF bypassing fixed the problem. The bypass capacitors are much too small
to adjust the power factor of the transformer. The fact that the problem ONLY
occurred when transmitting into an antenna and not the dummy load also points to
RF as being the culprit.
Vic K2VCO
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