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-   -   What is PTT216? (http://www.diyaudio.com/forums/tubes-valves/24221-ptt216.html)

Jax 14th December 2003 11:29 AM

What is PTT216?
 
I have this tube in my pile of NOS tubes.

It's made by CSF France, is a penthode, 9 pin short

Box marked P.T.T. 216

Does anyone of you know what it is? It's one of 2 tubes I have and know nothing about.

fdegrove 14th December 2003 12:36 PM

Hi,

The PTT 216 is one of the many types developped for the postal services.

Vf 6.3V 0.3A
Va 180VDC
Vg2 180VDC
Rg1 Max 50KOhm
Vfk 70V
Pg2 Max 0.75W
Pa Max 2.25W

PINOUT:

1: G1
2: NC
3: F
4: K+G3
5: NC
6: A
7: NC
8: G2
9: F

Cheers,;)

Jax 14th December 2003 12:53 PM

Thank you :)

Weird tube, never seen such a pin configuration before.


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