[GreenKeys] Vacuum tubes in TTY power supply

[Robert Goff]

Nick,

I think what you saw were the thyratrons in a REC-30 power supply.
Mine are marked JAN CZ-323A. CZ should be a Navy contractor code.

There is also a regular metal 6F6 and an NE-42 glow lamp.

I believe the REC-30 was the standard power supply issued with Navy
and Signal Corps FGC-9 printers (Model 19)  Mine has an MFP date of
1954, while the Model 19 says it was refurbished by the Navy in San
Francisco in 1959.

Robert
W7MKA

On 6/16/19, Nick <creativegardening at hotmail.com> wrote:
> I have seen a picture about a year ago (or was it a YouTube video, can't
> remember) of several blue illuminated vacuum tubes inside of a teletype
> power supply / rectifier.
> Does anybody knows the name/number/model of these tubes ?
>
> Nick  -  N0NCQ
> iTelex   212503
>
>
>
> Sent from my T-Mobile 4G LTE Device
>