Browse Categories

Sylvania 12AX7 - long gray plates, various labels


Price: $59.00
1 in stock
Item Number: 211
Manufacturer: Sylvania
Description

This 1965 Sylvania 12AX7 has long gray plates with copper grid posts and a halo getter. The green print on the glass has the Shield logo.
 

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.
See product options for current availability.

Noise and microphonics

Tubes that test as "phono grade" are 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 its original box with test results for current draw (mA) and transconductance (Gm). Photo is a sample from the lot. Matched sets, when available, are listed as Item 456.

Related Products

Sylvania 12AX7 - long gray plates
Sylvania 12AX7 - long gray plates
Price: From $24.00 to $49.00
Sylvania 12AX7 - long gray plates
This late 1950s-early 1960s Sylvania 12AX7 tube has long gray plates with copper grid posts and a halo or D getter. The yellow or green print on the glass has the Sylvania logo (label may be partial or missing). Click "more info" for current availability.
Sylvania 12AX7WA - long gray plates
Sylvania 12AX7WA - long gray plates, matched pair
Price: $119.00
Sylvania 12AX7WA - long gray plates, matched pair
The military spec Sylvania 12AX7 tubes in this precisely matched pair have gray plates with copper grid posts and halo getters. The blue or green labels have the PhilipsECG logo and read "JAN 12AX7WA." Both tubes tests as new with phono grade noise levels
Search

SHIPPING SCHEDULE
Orders received
Aug 24-Sept 5
will
ship
Sept 6.

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.

Shopping Cart
Your cart is empty.