On 9/30/24 16:23, Paul Koning via cctalk wrote:
One application for devices like that would be vacuum tube power amplifiers, to
delay the high voltage power supply until after the heater current has been on
for a bit.
paul
On Sep 30, 2024, at 5:21 PM, Van Snyder via cctalk <cctalk@classiccmp.org>
wrote:
I have two SPST time delay 12-volt relays packaged like vacuum tubes
with octal bases, Amperite models 12N010 (ten seconds) and 12C5 (five
seconds).
Another place they were used (but I think 60 second delay)
was in the IBM 2314 disk system, where these delayed loading
the heads until the drive had been spinning for 60 seconds
or so.
Jon
