08-02-2017, 09:21 PM
I had the same question when I got my 116B - it had the unusual toggle knob shown in your photo on the left.
Ron answers this here: http://philcoradio.com/phorum/showthread.php?tid=11933
At least for the 116B - and likely others from 1936 - either is correct.
Ron answers this here: http://philcoradio.com/phorum/showthread.php?tid=11933
At least for the 116B - and likely others from 1936 - either is correct.