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ID = 45144
United States of America (USA)
Brand: Haydu Brothers, Plainfield, NJ
Tube type:  Beam Switching Tube - incl. "Trochotron" 
Identical to HB101 = 6701

Base SPECIAL TUBEBASE in general
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect

H-B101 was one of the early beam switching tube introduced im the late 1955 by Haydu Brothers together with the early Nixie display tube. The prefix itself, H-B, looks to be the acronym of Haydu Brothers. H-B101, registered as 6701, was the low-voltage variant of the MO-10, with reduced magnetic field.
20V target typical voltage, 0.7 mA, 6.8 kohms load.
In Electronics, December 1955, this tube was advertised as produced by 'Haydu Brothers of New Jersey', subsidiary of Burroughs Corporation.
Operating principle of trochotron.
Haydu or Burroughs: the early trochotron tube.

Weight 500 g / 17.64 oz
Information source -- Original prospect or advert   Electronics, December 1955, pg. 285
- - Manufacturers Literature   

HB101: Manufacturer's Literature
Emilio Ciardiello

More ...

Documents about this component
  This is the very early ad of the H-B101/6700 trochotron, the HB106 Nixie and a Vari-Count module, all by Haydu Brothers. Source: Electronics, Dec. 1955, page 285. 155 KB
  Datasheet of HB-101 - 6701 low-voltage trochotron. Courtesy of Lud Sibley. 358 KB


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