[R-390] R390A micro-switch saver circuit

[Perry Sandeen]

Hi Gang,

I’ve come across another circuit that may be useful to R390A’s in particular and BA receivers in
general.

When we used the A’s in Turkey they were usually on 24/7.  Now days it’s a completely different
story for most of us.

It is a gated triac power on circuit from the 2/06 issue of Audio Express magazine.  It will
greatly reduce the current through the micro-switch which is getting scarcer by the day although
Hank Arney still has some NOS.  Reply off list and I’ll send you a pdf file.  Regards, Perrier


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