Curt -
While it's certainly possible that the crystal was damaged, it's
unlikely. The calibrator only has four pins to hold it in, and once it
comes loose the tube isn't that hard to break.
Are you sure the 6BZ6 you have is a good one? Seems elementary, but is
the tube getting hot?!
If you have another crystal in an HC-6/U package, the lower the
frequency the better, does it oscillate?
Try measuring the voltages on the tube socket. You can run the
oscillator with three clip leads so you can get to the measurement points.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs
<www.k4oah.com>
Curt wrote:
A recently purchased 2B included a 2AC calibrator. When received, the
calibrator had unplugged during shipment and broke the 6BZ6 oscillator
tube. Replacing the tube didn't fix the calibrator. For such a simple
circuit am suspecting the shock also broke the crystal. Any sources
for replacement crystals?
73, Curt KB5JO
_______________________________________________
Drakelist mailing list
Drakelist@zerobeat.net
http://mailman.zerobeat.net/mailman/listinfo/drakelist
