TWO RCA Cunningham Type 45 Vacuum Tubes Radio Radiotron & UX 280 Not Tested

RCA Cunningham Type 56 Vacuum Tube NOS Tested on TV-7D/U Tube Tester

RCA CUNNINGHAM RADIOTRON TYPE 59 RADIO POWER AMPLIFIER VACUUM TUBE TESTED GOOD

Vintage RCA Type 56 Vacuum Tube Tested Good in Original box

RCA Radiotron 1D7G Tested GOOD (see photo) Vacuum Tube

Cunningham 6D6 Radiotron Tested GOOD (see photo) Vacuum Tube

Type 33 Vacuum Tube tested Good RCA Cunningham

Vtg RCA Radiotron 25Z6 GT Electron Vacuum Tube Tested Good On Both Plates