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12AU7 SELECT
Tube Pack:
Single (1 tube)
Single (1 tube)
Matched Pair (2 tubes)
Ray Tubes Retail Partners
North America
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Europe
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Product Highlights
Hand-selected and tested
Gold pins for corrosion resistance and excellent conduction
A substantial upgrade from standard NOS tubes
Low noise and microphonics
Matched pair (2 tubes) or single tube (1 tube)
Only 4% of the tubes commissioned for production meet our standards for gain and conductance matching
12-month warranty against manufacturing defects
Technical Specification
Tube Type:
12AU7 / ECC82 / 6189 / CV4003
Tube Socket:
9-pin
Max Anode Dissipation Power:
2.75 W
Max Screen Dissipation Power:
N/A
Output Power in Class A1 Amp (Single Tube):
N/A
Output Power in Class AB1 Amp:
N/A
Max Anode Voltage:
300 V
Max Screen Voltage:
N/A
Max Grid Voltage:
~50 V
Heater Voltage:
6.3 V
Heater Current:
0.3 A
Transconductance:
2.2 mA/V
Amplification Factor:
17
Internal Resistance:
7.7 kΩ
Package Content
Pair of matched vacuum tubes or single vacuum tube
User handbook featuring burn-in guidelines
Certificate of authenticity and warranty
Compatible Amps
Explore Ray Tubes'
Tube Amp Compatibility List
12AU7 SELECT
Sale price
$48.00 USD
Tube Pack:
Single (1 tube)
Single (1 tube)
Matched Pair (2 tubes)