-40%
Field Strength Meter, Super High Beta Detector
Field Strength Meter, Super High Beta Detector
Field Strength Meter, Super High Beta Detector

Field Strength Meter, Super High Beta Detector

$ 26.4

Availability: 100 in stock
  • Condition: Used
  • All returns accepted: Returns Accepted
  • Country/Region of Manufacture: United States
  • Refund will be given as: Money Back
  • Item must be returned within: 30 Days
  • Restocking Fee: No
  • Measured Parameter(s): 1 mA
  • MPN: 126
  • Return shipping will be paid by: Buyer

    Description

    This is a DIY field strength meter that uses the very sensitive Super Beta Transistor (MPSA18) and a Simpson 0-1 mA meter.
    The 2.5 inch meter is mounted in a tinfoil covered cardboard box. (Looks funny but the tinfoil is for shielding).
    It has a banana plug for the sensing antenna connection.
    The input is a tuned LC  circuit that covers about  7 to 25 MHz.
    The detection circuit uses a 1N914 that feeds the Super Beta transistor (MPSA18).
    It runs on a 9V battery.
    Payment by Paypal only.