Antique radios, Old Time Radios
3E29
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Country:
United States of America (USA)
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| Identical to |
3E29
= CV2295
= CV3599
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| Similar
Tubes |
Normally replaceable-slightly different:
829B
; QQV5-P10
Multiple differences or of other kind:
829A
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| Predecessor Tubes |
829
|
| Base |
Septar (1+6 pins) (Codex=sp)
2 Top contacts.
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 12.6 Volts / If 1.125 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Transmitter double tetrode, similar to 829, modified for pulse applications up to 8A at 5KV max. Mica spacers removed or replaced by ceramic spacers, so to withstand 5KV plate pulses without sparking. The design was then unified with the introduction of the 829B, that only differs for test procedures. 3E29 was tested for 5KV operation.
Filaments can be parallel connected for operation at 6.3V, 2.25A.
Also made by Haltron and Siemens.
Text in other
languages (may
differ)
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Dimensions (WHD)
incl. pins / tip |
58 x 105 x mm / 2.28 x 4.13 x inch |
| Weight |
100 g / 3.53 oz |
| Tube prices |
1 Tube prices (visible for members
only)
|
| Information source |
Tube Lore (II) p. 86
-- Original-techn. papers. Glasoe & Lebaqz, Pulse Generators
Tube Lore (I)
Taschenbuch zum Röhren-Codex 1948/49
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3E29: 3E29 Base Diagram
Vitor Oliveira
More ...
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3E29: AARL Handbook 48
Jacob Roschy
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
Collection of
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