RCA 6CA4
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Product
Site
Price
Listed
eBay
6CA4 NOS RCA 1960s radio audio amplifier vacuum tubes 2 valves tested EZ81 6CA4
$64
Dec 27, 2025
$64
Dec 27, 2025
eBay
RCA (Labeled Wurlitzer) 6CA4 Vacuum Tube Amplitrex and Guaranteed
$20
Dec 24, 2025
$20
Dec 24, 2025
eBay
6CA4 RCA Full-Wave Rectifier Vacuum Tube - NEW OLD STOCK - NOS - TESTED
$14
Dec 15, 2025
$14
Dec 15, 2025
eBay
1 RCA 6CA4 / EZ81 Vacuum Tube Tested NOS Balanced 99/99
$29
Dec 14, 2025
$29
Dec 14, 2025
eBay
NOS / NIB RCA 6CA4 / EZ-81 Rectifier Tube. Tested 100% NOS and Balanced.
$19
Dec 14, 2025
$19
Dec 14, 2025
eBay
Vintage RCA Webster 6CA4 EZ81 Halo Getter Stereo Tube Results=2875/2700 USA
$22
Dec 10, 2025
$22
Dec 10, 2025
eBay
2 x 6CA4-EZ81 RCA Tubes*O-Getter*Very Strong Testing*#6
$48
Dec 10, 2025
$48
Dec 10, 2025
eBay
Vacuum Tube Lot Ultratone RCA 6AQ8 6EU7 6BA6 6CA4 6BE6 6AU6A 6BD6 6AL5
$20
Nov 19, 2025
$20
Nov 19, 2025
eBay
NOS NIB new RCA 6CA4 vacuum tube tests new and balanced
$19
Nov 19, 2025
$19
Nov 19, 2025
eBay
6CA4 Radio Tube New RCA NOS MIL spec Tested Ruggedized 1972 date code TV7 Tested
$15
Nov 9, 2025
$15
Nov 9, 2025
eBay
CLEAN 1960s Vintage RCA Harmon Kardon 6CA4 EZ81 BLACK Plate TESTS STRONG NEW NOS
$19
Nov 1, 2025
$19
Nov 1, 2025
eBay
RCA 6CA4 rectifier that tests very strong (USA)
$24
Sep 3, 2025
$24
Sep 3, 2025
eBay
Vintage NOS/NIB RCA 6CA4 Tube
$27
Aug 29, 2025
$27
Aug 29, 2025
eBay
RCA 6CA4 EZ81 Tested Good Balanced Tube
$18
Aug 24, 2025
$18
Aug 24, 2025
eBay
RCA 6CA4 EZ81 Tested Good Balanced Tube
$18
Aug 24, 2025
$18
Aug 24, 2025
eBay
RCA 6CA4 Gray Plate Vacuum Tube Amplitrex Tested and Guaranteed
$25
Aug 17, 2025
$25
Aug 17, 2025
eBay
RCA EZ81/ 6CA4 rectifier tests strong - USA
$65
Jul 26, 2025
$65
Jul 26, 2025
eBay
Vintage NOS/NIB RCA 6CA4 Tube
$29
Jul 26, 2025
$29
Jul 26, 2025
eBay
RCA Bogen 6CA4 Rectifier Tube TV7 Tested NOS
$20
Jul 24, 2025
$20
Jul 24, 2025
eBay
1 X 6CA4 / EZ81 RCA TUBE. NOS/NIB. CB4
$31
Jul 22, 2025
$31
Jul 22, 2025
eBay
RCA 6CA4 EZ81 Tested Good Balanced Tube
$24
Jun 4, 2025
$24
Jun 4, 2025
eBay
RCA 6CA4 EZ81 Label Motorola Tested Good Balanced Tube
$24
Jun 4, 2025
$24
Jun 4, 2025
eBay
6CA4 EZ81 RCA Audio Receiver Rectifier Vacuum Tube Tested
$24
Apr 19, 2025
$24
Apr 19, 2025
eBay
Matched Pair 6CA4 RCA same code NOS faded label Vacuum Tubes, B&K 747B Tested
$44
Apr 19, 2025
$44
Apr 19, 2025
eBay
2 - RCA 6CA4 Vacuum Tubes / KT1
$47
Mar 1, 2025
$47
Mar 1, 2025
eBay
RCA 6CA4 Vacuum Tube / KT4
$24
Feb 25, 2025
$24
Feb 25, 2025
eBay
RCA 6CA4 Vacuum Tube / KT5
$24
Feb 25, 2025
$24
Feb 25, 2025
eBay
(2) RCA 6CA4 Full Wave Rectifier Tubes Test GOOD! Chrome Tops!
$34
Feb 13, 2025
$34
Feb 13, 2025
eBay
1x 6CA4 / EZ81 Rectifier RCA
$18
Dec 31, 2024
$18
Dec 31, 2024
eBay
A MATCHED PAIR OF RCA 6CA4/EZ81 NOS/NIB VACUUM TUBES
$100
Aug 9, 2024
$100
Aug 9, 2024
eBay
RCA 6CA4 Tube NOS Hickok 800A Tested (Box E)
$27
Mar 19, 2024
$27
Mar 19, 2024
eBay
NOS RCA 6CA4 Vintage Radio Audio Amplifier Valve Vacuum Electron Tube *
$44
Feb 3, 2023
$44
Feb 3, 2023
eBay
NOS NIB 1960 RCA 6CA4 Gray Plate Vacuum Tube Guaranteed
$40
Dec 30, 2021
$40
Dec 30, 2021
eBay
NOS NIB 1973 RCA 6CA4 Vacuum Tube Gray Plate Guaranteed USA
$40
Dec 30, 2021
$40
Dec 30, 2021
eBay
RCA 6CA4 EZ81 Rectifier Tube 110/110 each side Dumont Branding
$29
Dec 24, 2021
$29
Dec 24, 2021
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