6688: Difference between revisions
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|Part_nos= | |Part_nos= | ||
|Description=miniature high-slope VHF/UHF pentode | |Description=miniature high-slope VHF/UHF pentode | ||
|Used_in=P80;3T77;526;TR-4602 | |Used_in=P80;3T77;4S2A;526;TR-4602 | ||
|Designers= | |Designers= | ||
}} with a {{B9A base}}, primarily intended "for use in wideband amplifiers in telephone carrier systems, radar equipment and measuring equipment". | }} with a {{B9A base}}, primarily intended "for use in wideband amplifiers in telephone carrier systems, radar equipment and measuring equipment". | ||
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* [[TR-4602]], Hungarian [[551]] clone | * [[TR-4602]], Hungarian [[551]] clone | ||
* the [[526]] | * the [[526]] | ||
* the [[4S2A]] | |||
Tek part number: 154-0215-00 | Tek part number: 154-0215-00 | ||
Revision as of 11:14, 28 September 2023
The 6688 (European: E180F) (Russian: 6Ж9П) 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:
- the staircase generator circuit of the 3T77
- the P80 cathode-follower probe
- TR-4602, Hungarian 551 clone
- the 526
- the 4S2A
Tek part number: 154-0215-00
Links
Pictures
-
P80 probe internal view
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 | (?) |