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6B4G

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6B4G Ken Rad JAN CKR Triode - black glass

Price: Starting at $39.00

This military spec Ken Rad JAN CKR 6B4G tube has an ST bottle with black glass, black plates, and a bottom getter. The 6B4G is an octal version of a 2A3. Choose from tubes that test as new or good.

6B4G Raytheon Triode - pair

Price: $89.00

These Raytheon 6B4G triode power tubes have ST bottles, black plates, and dual bottom getters. They test on the border of what would be expected for new tubes and are sold as a pair.

6B4G Sylvania Triode

Price: $49.50

This 6B4G is a triode power tube made by Sylvania (green label). It has an ST bottle, black plates, and a bottom getter.


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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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