Just acquired one. Anyone have one or can point me to instructions for its use? I've looked and can't find anything on it.
This little box has no batteries inside and no external power connection. It seems to be a tuned circuit. Has an off position on its sole knob, like the on/off switch - volume control on old radios. Is that knob a tuning control?
This little box has no batteries inside and no external power connection. It seems to be a tuned circuit. Has an off position on its sole knob, like the on/off switch - volume control on old radios. Is that knob a tuning control?
