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Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe
Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe
Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe
Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe
Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe
Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe
Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe
Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe
Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe
Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe
Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe

Qty 2 USAF TS-446/U Radio Frequency Indicator Probe RARE Electronic RF Probe

$ 23.76

Availability: 34 in stock
  • Modification Description: None
  • Condition: USED showing signs of use and age. Please see photos.
  • Voltage Range: ,25W (nom)
  • MPN: TS-446/U
  • Manufacturer: Bell Sound Systems
  • Brand: Bell USAF
  • Modified Item: No
  • Bundle Description: 2 Probes
  • Maximum RMS Input Voltage: High Voltage RF Only
  • Country/Region of Manufacture: United States
  • Model: Electronic RF Probe
  • Custom Bundle: Yes
  • Maximum DC Input Voltage: High Voltage RF Only

    Description

    Two (2) Rare Probes from 1950s USAF technicians.  USAF TS-446/U Radio Frequency Indicator Probe - RARE
    Ok folks we have yet another very hard to find probe, interesting in design, available for sale. Please see description below. We will include the page we were able to find describing this probe. Please see all photos. Apparently it will glow upon .25w nominal RF source.
    The following description is from a 1954 military handbook C1, Mil-HNBK-172A  VOL 1/TM 11-487-1/1 -
    FSN: 6625–569–0286
    USA Line Item No.: 634830
    Manufacturer : Bell Sound Systems , Inc
    FUNCTIONAL DESCRIPTION : Radio Frequency Indicator TS - 446 / U is a pocket size , pencil - type test equipment used in deter mining stray RF fields of radio and radar transmitters and in providing high - voltage checks of power transformers.
    RELATIONSHIP TO SIMILAR EQUIPMENT : This equipment is part of Test Set AN / MPM - 2 .
    TECHNICAL DESCRIPTION :
    Power Requirements : .25 w ( nom )
    Major Units 1 TS - 446 / U 456  4-1/2 L  x 1/2" dia
    TUBES , CRYSTALS , TRANSISTORS :
    REFERENCE DATA AND LITERATURE : USAF Dwg 45A40680 , X45B40679