6688

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The 6688  (European: E180F) (Russian: 6Ж9П) (P/N 154-0215-00) is a miniature high-slope VHF/UHF pentode vacuum tube 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:

Some instruments using part 6688

Instrument Manufacturer Class Model Description Introduced
3T77 Tektronix Plug-in 3T77 Sampling sweep plug-in 1962
3T77A Tektronix Plug-in 3T77A Sampling sweep plug-in 1966
4S2A Tektronix Plug-in 4S2A Dual channel sampling plugin 1965
526 Tektronix Audio/Video 526 NTSC Vectorscope 1959
P80 Tektronix Probe P80 Active probe for 581/585+80 1959
TR-4602 EMG Oscilloscope TR-4602 25 MHz dual beam oscilloscope (?)

Links

Pictures

Some instruments using part 6688

Instrument Manufacturer Class Model Description Introduced
3T77 Tektronix Plug-in 3T77 Sampling sweep plug-in 1962
3T77A Tektronix Plug-in 3T77A Sampling sweep plug-in 1966
4S2A Tektronix Plug-in 4S2A Dual channel sampling plugin 1965
526 Tektronix Audio/Video 526 NTSC Vectorscope 1959
P80 Tektronix Probe P80 Active probe for 581/585+80 1959
TR-4602 EMG Oscilloscope TR-4602 25 MHz dual beam oscilloscope (?)