EricJ wrote:
At K2USA we had a BC-610 in the main studio (1964). It stood a little over
desk high and was truly the Mother of all Boatanchors. To tune it, you had
to lift a small hatch in the top surface and rotate a link coupling. But, of
course, you had to switch off the B+ first. If you forgot to do that, there
was an interlock on the small hatch to cut the B+.
We had two military operators (not hams) who handled the MARS traffic for us
so we could ham. Somebody had discovered that the interlock was not working
earlier in the day. I taped down the hatch, taped a note over that so the
ops would have to remove the note to open the hatch, told the two ops to be
absolutely sure they shut off the B+ before tuning the TX and left for home.
Ah, yes, the B+ supply! Another stupid event I recall was when I was
"working" on my Galaxy V MkII transceiver -- the transmitter section --
and didn't realize the B+ (ca 600 volts) was *always* switched on when
the thing was even only receiving. I brushed against the loading
capacitor (variable, natch) and, well, let's just say the scars on my
palm are still visible.
I really like the 12 volt solid state stuff. Oh, and by the way -- it
was right after the aforementioned experience that I developed an
interest in QRP (1975)!
73,
Joe, W2RBA
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