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ID = 32707
United States of America (USA)
Brand: Burroughs Corporation; Plainfield (NJ)
Developer: Haydu Brothers, Plainfield, NJ 
Tube type:  Beam Switching Tube - incl. "Trochotron" 
Identical to 6700 = MO-10 = HB-100 = CV5277
Similar Tubes
Normally replaceable-slightly different:
  CV5290 ; ET51 ; VS10G
First Source (s)
20.Jun.1955 : Electron Tube Registration List 1485
Successor Tubes 6703   6701   BD-301   MO-10R   VS10G   VS10K   BD-311   BD-203  

Base SPECIAL TUBEBASE in general
Was used by Technology / Measurement
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect

The 6700 is the first beam switching tube made in series. It is a high speed, nixie-compatible alternative to the Dekatron (of Sylvania, e.g. 6910), called Trochotron. The counting speed is 2 MHz. Magnetic beam switching tubes are exotic hard vacuum decimal counting devices used in high speed applications through the 1950's and 1960's.

The 6700 magnetic beam switching tube, and the associated Nixie tube HB-106 too, were introduced in 1955 by Haydu Brothers, at the date subsidiary of Burroughs. The design of the beam switching counter was anyway carried out under the direction of Sam Kuchinsky, who had devised the three electrode counting structure at the Burroughs Research Center in Pauli, PA

6700 is the EIA/RMA registration in favour of Haydu Brothers for MO-10 or H-B100 internal references.
Operating principle of trochotron.

Weight 500 g / 17.64 oz
Tube prices 1 Tube prices (visible for members only)
Information source -- Original prospect or advert   Electronics, Dec. 1955, pg. 285
- - Manufacturers Literature   Datasheet

6700: Manufacturer's Literature
Emilio Ciardiello

More ...
Usage in Models 1= 1959

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

Collection of

Documents about this component
  Notes of Saul Kuchinsky, Burroughs, on operation of trochotrons or beam-switching counters. 1994 KB
  Datasheet of 6700 - MO-10 trochotron 373 KB


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