→ Related artifacts
Aeroplane Antenna Reel. Type RL-2
Two winding reels for antenna wire. →
All-Test Instrument Resistance
Amrad Variometer 2752
Amrad Wavemeter Type D
Antenna insulators (2)
Labelled “Brown Beezer 6-7-87” →
Audibility Meter Type 164B
Audion Control Box SE-1071
Made for Navy Sept (BU. S. E.) →
Buzzer on Board
Cracraft-Leigh telephone
Handcranked wall-mount telephone with wood cabinet. →
Dial Decade Testing Set, E-3105
Eaton Oscillator Type – Triode C
Framed Photos: First Radio Beacon Transmitter built by Robert Kruse, Chesapeake Bay
General Electric Giant Rheostat
Early Day Wireless →
General Electric motor alternator type CY81A
Motor alternator made for U. S. Army Signal Corps. →
General Radio Type 247 C Variable Air Condenser
General Radio Wave Meter Type 174 B
Jefferson Tube Rejuvenator
Jefferson Tube Tester
Jewel Radio Test Set Pattern No. 95
Jewel Radio Test Set Pattern No. 95
Jewell Radio Set Analyzer Pattern 199
with/ Super Airline CX-201A 62-63" w/Instructions for Servicing Radio Receivers, Jewell Electrical Instrument Co., 1650 Walnut Street Chicago →
John Firth & Co. Electric Plate-Condenser
Long Wave Loading Unit Type IP 503
Marconi Contact Switch
N.R.I Tape No 7 / N.R.I Tape No 8
N.R.I Tape No 3 / N.R.I Tape No 4
NEARC Lifetime Member Plaque for Robert Merriam
Omnigraph Morse code trainer
Spring-driven Morse code trainer mounted on wood base, with 10 code disks. →
Omnigraph Morse code trainer
Spring-driven Morse code trainer mounted on wood base, with 10 code disks. →
Pattern 560 Service Test Oscillator
Photo: Gerry Travis and Bill Halligan
Power Coupler
Precision Condenser
At the museum: Massie Station Maker: General Radio Co. Place: Cambridge, Mass U.S.A Date: Donor: Specifications [delta]C=1000 M.M.F. Type 22-M Serial No. 1435 →
Radio Club of America Certificate Given to Robert E Merriam
Radio Frequency Ammeter Type CT1477
Radio Phone Diagram
Radio Telegraph Co.
Roller-Smith Co. Ohmeter Type Com
“S.O.S.” from a painting by Fredrick Roe (1864-1947)
Signal Corps US Army Antenna Tuning Unit BC-306-A
Signal Corps Wireless Set No 19 MK II Aerial Variometer
Signal flag kit
U. S. Army signal flag kit in canvas carrying case. →
Spare Valve Case
The Nacometer [Automatic Code Transmitter]
The Omnigraph
Alexanderson Alternator Thrust Bearing Pressure Gauge from Marion Mass
Tuning Capacitor
U.S. Navy Portable Wave Meter
Universal Sterling Tube Tester R-408
Unknown Variocoupler
Veifa-Werke-Frankfurt A/M Rontgenzwecke
National Electrical Supply Wavemeter Type SCR 61
Made for the U. S. Army Signal Corps. → Western Electric Airplane Interphone type S.C.R. 57
Wired system for communicating between airplane pilot and 'observer' with connection for wireless receiver/transmitter. In box with cables and connection diagrams. Made for U. S. Army Signal Corps. → Weston Direct Current Voltmeter
Weston Meter Model 301
Weston Model 537 No. 1648 Radio Set Tester
With/ The Instructions for use →