6688: Difference between revisions

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* the staircase generator circuit of the [[3T77]]
* the staircase generator circuit of the [[3T77]]
* the [[P80]] cathode-follower probe
* the [[P80]] cathode-follower probe
* [[TR-4602]], Hungarian [[551]] clone


Tek part number: 154-0215-00
Tek part number: 154-0215-00

Revision as of 04:18, 25 November 2019

The 6688 (European equivalent E180F) is a miniature high-slope VHF/UHF pentode with a B9A (Noval) miniature 9-pin base, primarily intended "for use in wideband amplifiers in telephone carrier systems, radar equipment and measuring equipment".

It is used in:

  • the staircase generator circuit of the 3T77
  • the P80 cathode-follower probe
  • TR-4602, Hungarian 551 clone

Tek part number: 154-0215-00

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