Tubes
Box of 4 Tubes, Raytheon Type B-H
Ce Co Type 227 radio tube
Eveready Raytheon Type BH Long Life Rectifier Tube
Heintz and Kaufman Ltd., Gammatron 807
Marconi Valve (Tube) P240
Radiotron UV-863 25061
Raytheon RK38
RCA Radiotron 891R
Tube with vanes for air-cooling. →
Sterling Type R-411 Home Tube Tester
with/ Super Airline GX-201A 62-63" →