Wireless Test equipment
Hoyt A. C. Volts 0-150 Meter, the 348 Type 531
This A.C. Volt Meter was made by Hoyt Electrical Instrument Works in Penacook, New Hampshire. →
Hoyt Model 100 Tube Tester
This 1922 tube tester was made by Hoyt Electrical Instrument Works of Penacook, New Hampshire. →