23 Feb
2025
23 Feb
'25
7:09 p.m.
A typical use for those would be either to delay applying plate voltage to a high power
amplifier tube until after the filament current has been on for a bit, or to cut out a
series resistor used to limit the inrush current on a capacitor-input power supply. The
delay (especially the 5 seconds) seems to fit the second application best.
paul
On Feb 22, 2025, at 8:08 PM, Van Snyder via cctalk
<cctalk(a)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).
They're in their original boxes.
I have no idea what devices used them.
It seems a shame to throw them in a recycle bin.
Does anybody want them?
Van Snyder