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Raytheon 12AX7A - short gray plates, phono grade
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1 in stock
Item Number: 542
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Description
This 1963 Raytheon 12AX7A tube was made in the USA. It has short gray plates and a halo getter. The yellow print on the glass is labeled for organ companies (Lowrey, Baldwin, Schober, etc).
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
Tubes that test as "phono grade" are 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
This
tube is sold individually. It ships in a new white box with test
results for current draw (mA) and transconductance (Gm). Photo is a
sample from the lot. Matched pairs, when available, are listed as Item 543.
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This Raytheon 12AX7 / ECC83 tube was made in Japan. It has gray plates and a halo getter. The yellow label on the glass has the Raytheon logo. These are excellent quality vintage 12AX7 tubes at an affordable price.
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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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