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1S5
The 1S5 is a miniature tube consisting of a diode and a sharp-cutoff pentode, developed for use as a combined detector and AF amplifier in battery-powered portable devices. Pinout as seen from the bottom of the valve.

➤ 1S5 datasheet

Pinout as seen from the bottom of the valve

1S5 on this website
GPO interference investigation receiver WT No. 11
RBZ receiver (WWII)
RBZ
Polish OP-3 (Type 30/1) WW-II clandestine receiver
Spanish valve-based bug 'BICHO' from 1953
Equivalents
  • CV784
  • DAF91
  • 1FD9
  • ZD17
Further information
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© Crypto Museum. Created: Monday 10 May 2021. Last changed: Monday, 10 May 2021 - 06:23 CET.
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