I see now that I have been stuck in an endless spiral of screw-ups of my own making. Fixing them has
certainly kept me busy most of my life. But every once in a while I surprise myself by doing
something
really astounding (at least to me) and I think all this stuff I learned had a purpose.
Dennis Tillman W7PF
Hey - don't beat yourself up Dennis. The head might not be bust, there might still just be a duff
connection.
You didn't do something really stupid, like me when I plugged a harmonica connector one pin out on the
power supply of my 577 curve tracer (unplugged originally to find a dead tant). Blew up most of the
silicon in the thing.
I've now got it pretty much sorted, other than one remaining problem with either the step generator or
amplifier. Real nightmare to sort out. Rather fortunately every piece of silicon was easily available,
and socketted - even the dual FETs, which are still made.
Craig
