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6CA4 / EZ81

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6CA4 / EZ81 GE Price: $15.00 This 1960s GE 6CA4 / EZ81 tube has gray plates and a halo getter. Tests as new.	6CA4 / EZ81 Mullard made Price: $39.00 This 6CA4 / EZ81 tube is made by Mullard in Great Britain (Blackburn factory code) and labeled for other companies like Amperex, Magnavox, etc. Tube tests as new.	6CA4 / EZ81 RCA Price: $26.00 This RCA 6CA4 / EZ81 has gray plates and a slanted halo getter. Tube tests as new and ships in its original box.
6CA4 / EZ81 RCA made Price: $22.00 This 6CA4 / EZ81 tube was made by RCA and labeled for Stromberg Carlson. It has gray plates and a slated halo getter. Tube tests as new.


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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar players, DIY tube audio enthusiasts, and audiophiles.

We also offer high quality and hard to find parts for DIY tube amplifier projects.

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6CA4 / EZ81

6CA4 / EZ81 GE

6CA4 / EZ81 Mullard made

6CA4 / EZ81 RCA

6CA4 / EZ81 RCA made