Antique radios, Old Time Radios
TR1077
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| Tube type: |
Solid State Tube Replacement |
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| Identical to |
TR1077
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| First Source
(s) |
Feb.1973 : - - Manufacturers Literature
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| Base |
Miniatur-7-Pin-Base B7G, USA 1940
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| Was used by |
Telephony |
| Description |
"Fetron", solid state replacement for 407A tube, manufactured by Teledyne.
The "Fetron family" was designed for replace vacuum tubes in telephone communications equipments (carrier, multiplexer, demultiplexer etc.) or lab equipments (for example
HP 400 VTVM conversion kit, Tektronix CA plugin conversion kit).
A "Fetron" is not a universal replacement for vacuum tubesand must be configured differently for certain applications.
For example, the "Fetron" configuration will generally be different for a pentode amplifier and an oscillator.
The "Fetron" is composed of one or more high voltage JFETs, a protective fuse, and R/C networks for tailoring to the required circuit
performance parameters.
Text in other
languages (may
differ)
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Dimensions (WHD)
incl. pins / tip |
x 27 x 14 mm / x 1.06 x 0.55 inch |
| Information source |
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Just Qvigstad
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TR1077: Manufacturers data
Patrice Zeissloff
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You reach this tube or valve page from a search
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on a radio model page. You will find thousands
of tubes or valves with interesting links. You
even can look up radio models with a certain tube
line up.
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| Data Compliance |
More Information |
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