Amperex 12AX7 / ECC83 - Bugle Boy label, phono grade

Price: $119.00

1 in stock

Item Number: 561

Manufacturer: Amperex

Quantity:

Description

This 1966 Amperex Bugle Boy 12AX7 / ECC83 tube has gray plates and a halo getter (I65 series). The white label has the famous Bugle Boy logo. The Heerlen, Holland factory code is etched in the glass.

Testing

This tube tests as new. It has been screened for gas, heater-cathode leakage, shorts, and excessive noise and microphonics on each triode section. It was 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

This tube tests as “phono grade”—the quietest range for noise and microphonics—on our custom noise testing equipment. It is an excellent choice for sensitive applications such as microphone preamps, V1 position in guitar amps, DA converters, and phono stages.

Pricing

This tube is sold individually. It ships in a new white box with test results for current draw (mA) and transconductance (Gm) for each triode section.

Related Products

Amperex 12AX7 / ECC83 - matched pair, Bugle Boy label, phono grade

Price: $249.00

The 1966 Amperex Bugle Boy 12AX7 / ECC83 tubes in this precisely matched pair have white Bugle Boy labels (partial/missing) and the Heerlen, Holland factory code is etched in the glass. Both tubes test as new with phono grade noise levels.