[Boatanchors] Tung-Sol 609

Fri, 09 Aug 2002 14:24:32 -0400

If memory serves a 6O9 (O not 0) would be 6 volt, normally open, 9 second delay
before contact closure.
John

Groke, Theodore A wrote:

> My Tri-State-500 Transmitter, circa 1960-63, see August 2001 CQ Classic
> Radio Calendar, uses one or something similar to provide a time delay
> between filament turn on and Hi-voltage turn on. Thus, the final, a single
> ceramic 4-150 has time to warm up before seeing B+.
>
> Ted, W2TAG
>
> R.J. Keller wrote:
>
> I came across a NOS Tung-Sol Relay 609 (glass octal) in my junk box.
> Is there any way to get specs on this and does anyone know how these
> were used?
> 73, Dick KF4NS
> Keep the glow!
>
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