TC Tubes and Audio Repair

Repair services include tube and solid state gear, turn table set-up, and tube-testing in Twin Cities Metro Area. Authorized Grado and Ortofon dealer.
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5AR4 / GZ34 tubes

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Mullard GZ34 / 5AR4 - 7 notch plates, BVA insignia

Price: $174.00

This 1966 Mullard GZ34 / 5AR4 full-wave rectifier tube has plates with 7 notches and a hole in the centering pin (f32 series). The white label has the Mullard shield logo with BVA military insignia. Tube tests as new with balanced diode sections.

Sovtek 5AR4 / GZ34 - 7 notch plates

Price: $21.00

This Sovtek 5AR4 / GZ34 rectifier tube has one of the best reputations for new production rectifier tubes at a very affordable price. It was made in Russia by New Sensor corporation and ships in a Sovtek retail box.

Sovtek 5AR4 / GZ34 - 7 notch plates, matched pair

Price: $49.00

The Sovtek 5AR4 / GZ34 rectifier tubes in this precisely matched pair have one of the best reputations for new production rectifier tubes at a very affordable price. They are tested and matched according to their voltage drop across each section.

TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.


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