Tektronix used this type of tube in some of their later vacuum tube
scopes. Some audio amplifiers also used them. Can help improve tube life
by keeping the plate supply off until the tubes warm up.
Bob
On 9/30/2024 2:21 PM, Van Snyder via cctalk 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
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Vintage computers and electronics
www.dvq.com
www.tekmuseum.com
www.decmuseum.org