Y1641: Difference between revisions
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[[File:Y1506-Y1641.jpg|thumb|350px|mechanical drawing from [[Media:050-0348-00.pdf|050-0348-00.pdf]]]] | |||
{{Vacuum Tube | {{Vacuum Tube | ||
|Type=Triode | |Type=Triode | ||
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}} used in the 1L20 oscillators (2×) and the [[491]] (to be verified). | }} used in the 1L20 oscillators (2×) and the [[491]] (to be verified). | ||
It | It appears to have been a Tektronix-spec'd version of the GE 7077, which is described as a | ||
''ceramic-metal small-size planar triode for use as a low-noise amplifier for frequencies up to 7.5 GHz'', and was used in the final 960 MHz amplifier stage (0.1 W output) in the [[wikipedia:Pioneer 3|Pioneer 3]] / [[wikipedia:Pioneer 4|Pioneer 4]] space probes. | ''ceramic-metal small-size planar triode for use as a low-noise amplifier for frequencies up to 7.5 GHz'', and was used in the final 960 MHz amplifier stage (0.1 W output) in the [[wikipedia:Pioneer 3|Pioneer 3]] / [[wikipedia:Pioneer 4|Pioneer 4]] space probes. | ||
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* GE Essential Characteristics Handbook, 14th Ed., 1973 | * GE Essential Characteristics Handbook, 14th Ed., 1973 | ||
{{Part usage}} | |||
[[Category:Triodes]] | [[Category:Triodes]] | ||
Revision as of 06:28, 23 September 2023
The Y1641 (P/N 154-0506-00,154-0510-00) is an SHF cermet triode vacuum tube used in the 1L20 oscillators (2×) and the 491 (to be verified).
It appears to have been a Tektronix-spec'd version of the GE 7077, which is described as a ceramic-metal small-size planar triode for use as a low-noise amplifier for frequencies up to 7.5 GHz, and was used in the final 960 MHz amplifier stage (0.1 W output) in the Pioneer 3 / Pioneer 4 space probes.
According to KI3U's article Substitute UHF Oscillator Tubes for the Tektronix 1L20 Spectrum Analyzer Plug-in, the 7077 has higher heater power requirements - the 1L20 needs to be modified to accommodate 7077s.
The 154-0510-00 seems to have been a version selected for high frequency.
Links
- Y1641 @ radiomuseum.org
- 7077 @ radiomuseum.org
- GE 7077 data sheet
- GE7077 @ The Valve Museum
- GE Essential Characteristics Handbook, 14th Ed., 1973
Some instruments using part Y1641
| Instrument | Manufacturer | Class | Model | Description | Introduced |
|---|---|---|---|---|---|
| 1L20 | Tektronix | Plug-in | 1L20 | 4.2 GHz Spectrum Analyzer plug-in | 1965 |
| 491 | Tektronix | Spectrum Analyzer | 491 | 40 GHz Spectrum Analyzer | 1966 |