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GE 12AY7 / 6072A - matched pair, phono grade

GE 12AY7 / 6072A - matched pair, phono grade
Price: $149.00
1 in stock
Item Number: 825OEM
Manufacturer: GE
Description

The GE 6072A tubes in this precisely matched pair are military spec 12AY7 type tubes. They have black plates and halo getters. The white print on the glass has the Mullard logo with BVA military insignia. "6072A" with the GE dot pattern is etched in the glass.
 
Testing

These tubes test as new.
They are precisely matched for both current draw (mA) and transconductance (Gm). They have been screened for gas, heater-cathode leakage, shorts, and excessive noise and microphonics on each triode section. They were tested at typical operating voltages on a laboratory grade Amplitrex AT1000 (manual setting, fixed bias mode). Learn more about our testing process here.
 
Noise and microphonics

These tubes test as “phono grade”—the quietest range for noise and microphonics—on our custom noise testing equipment. They are an excellent choice for sensitive applications such as microphone preamps, DA converters, and phono stages.

 
Pricing

These tubes are sold as a matched pair. Tubes ship in new white boxes with test results for current draw (mA) and transconductance (Gm). Photo is of the actual tubes. Singles, when available, are listed as Item 826.

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Price: $59.00
GE 12AY7 / JG-12AY7 - gray plates
This 1959 military spec GE 12AY7 tube has a windmill getter and gray plates with extra support rods. The white print on the glass has the GE logo and reads JG-12AY7. Tube tests as new with low noise.
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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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