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ID = 11875
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Double Beam Power Tube 
Identical to 3E29 = CV2295 = CV3599
Similar Tubes
Normally replaceable-slightly different:
  829B ; QQV5-P10
Multiple differences or of other kind:
Predecessor Tubes 829  

Base Septar (1+6 pins) (Codex=sp) 2 Top contacts.
Filament Vf 12.6 Volts / If 1.125 Ampere / Indirect / Parallel, (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)
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 Taschenbuch zum Röhren-Codex 1948/49   
-- Original-techn. papers.   Glasoe & Lebaqz, Pulse Generators
Tube Lore (I)
3E29: own tube collection
Hannu Alho

3E29: 3E29 Base Diagram
Vitor Oliveira

3E29: AARL Handbook 48
Jacob Roschy

Usage in Models 1= 1951

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

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