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6X4 / 6X4W

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6X4 / 6X4W Tung-Sol - black plates

Price: $29.00

This 1963 military spec 6X4W Tung-Sol rectifier tube has black "X" style plates and a halo getter. The white print on the label reads 6X4W. These are great tubes for pre-amps, DAC's and low-powered amplifiers. Tests as new and ships in original box.

6X4 / JTL-6X4W Tung-Sol - black plates, horseshoe getter

Price: $39.00

This military spec 6X4 Tung-Sol rectifier tube has black "X" style plates and a curved, horseshoe getter. The white print on the label reads JTL-6X4W. These are great tubes for pre-amps, DAC's and low-powered amplifiers. Tests as new.

6X4 RCA - black plates, D getter

Price: $12.00

This RCA 6X4 rectifier tube has black "X" style plates. These are great tubes for pre-amps, DAC's and low-powered amplifiers. Tube tests as new and comes in its original box.


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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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