12AU7 / ECC82
12AU7 is a medium gain dual triode. Due to the combination of low grid-plate capacitance and medium gain, it is suited for use in audio voltage amplifier with extended range.
The 5814A is a military/industrial grade 12AU7. Some versions of 5814 tubes have thicker micas and supporting rods to minimize microphonics. 5963 is a version of 12AU7 designed for use in vacuum tube computers.
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12AU7EH
Designed after original GE6189 tube, 12AU7EH offers low microphonics and high linearity at a very reasonable price point.
$10.50
$25.00
12AU7EH-GOLD
We have had many request for this tube. 12AU7/ECC82 Gold from Electro-Harmonix is factory selected, gold pin version of 12AU7EH, offering consistent performance and close tolerances.
$17.00
12AU7EH-GOLD Matched Pair
Price is for a matching pair of 12AU7/ECC82 EH Gold.
$38.00
$14.50
$33.00
$16.50
12AU7/ECC82-JJ
JJ 12AU7/ECC82 has similar construction to their legendary 12AX7/ECC83. Thick glass for lower microphonics in guitar amps, sturdy, and receives well deserved positive reviews.
$10.00
$24.00
12AU7/ECC82-JJ Triode Matched
JJ 12AU7/ECC82 has similar construction to their legendary 12AX7/ECC83. Thick glass for lower microphonics in guitar amps, sturdy, and receives well deserved positive reviews. -Triode Matched
$12.00
$21.00
12AU7/ECC82-JJ Gold Matched Pair
Price is for a conductance matched pair (two tubes) of 12AU7/ECC82 JJ gold pin.
$46.00
12AU7/ECC802S-JJ
New from JJ Electronics, this is a long plate version of 12AU7/ECC82.
$14.00
12AU7/ECC802S-JJ Matched Pair
Price is for a conductance matched pair (two tubes) of JJ ECC802S.
$32.00
$26.00
12AU7/ECC802S-JJ Gold Matched Pair
Price is for a conductance matched pair (two tubes) of 12AU7/ECC802 JJ gold pin.
$56.00
NOS OFFERINGS
The following is NOS and vintage tubes in this category. Due to the scarcity of some items, inventory will change constantly, so please check back often. Be sure to check out our NOS terms.The photos of NOS tubes are representative samples and actual NOS tube shipped may vary. "Various" means we have multiple brands in stock.
12AU7A NOS
We have various brands in stock. Please also see our 12AU7 section for complete list of other brands or types we stock.
$18.00
12AU7LC CIFTE NOS
This 12AU7 was made in early 1960s by French manufacturer Mazda/CIFTE.
12AU7LC CIFTE NOS Matched Pair
This 12AU7 was made in early 1960s by French manufacturer Mazda/CIFTE. Price is for a matched pair of 12AU7LC CIFTE NOS.
12AU7-RCA NOS Clear Top
TRIODE, DUAL
Excellent sounding 12AU7 with clear top.
12AU7-RCA NOS Clear Top Matched Pair
Price is for a matching pair (2 tubes) of RCA clear top.
12AU7-RCA USED Clear Top
These clear top 12AU7 are used but fully tested and guarateed like the NOS ones. Comes in white boxes.
$32.00
12AU7-RCA NOS
This is a RCA Branded NOS 12AU7A tube.
Please note that RCA often re-branded tubes from other manufacturers. Clear top is the only 12AU7 made exclusively by RCA.
$33.00
12AU7/ECC82-RFT NOS
Made by RFT, which was a East German counterpart to Siemens. 12AU7/ECC82-RFT offers uncolored, neutral sonic that makes it an excellent choice for HiFi application. Logo may vary.
$29.50
12AU7/ECC82-RFT NOS Matched Pair
Price is for a matching pair of 12AU7/ECC82 made by RFT.
$63.00
12AU7A NOS Sylvania
TRIODE, DUAL
Sylvania grey plate 12AU7A from 1960's. Replaces any 12AU7 types.
12AU7A NOS Sylvania Matched Pair
TRIODE, DUAL
Price is for a matched pair of 1960's Sylvania 12AU7A NOS tubes.
12AU7/5814A NOS 5 Star
TRIODE, DUAL
GE's 5 Star tubes require little introduction. We have limited quantity of double mica 5 Star 5814A in stock.
12AU7/5814A NOS Black Plate
TRIODE, DUAL
These are rare and excellent sounding ribbed black plate version of 5814A. It may have 2 or 3 micas. Sorry, no RCA.
12AU7/5814A NOS US Made
TRIODE, DUAL
This is the most common double mica, long grey plate version of 5814A. JAN or commercial Sylvania or Philips ECG.
$20.00
12AU7/5814A NOS US Made Matching Pair
Price is for a matching pair of regular US made 5814A .
$44.00
12AU7/5814A NOS US Triple Mica
TRIODE, DUAL
This is the less common, triple mica, long grey plate version of 5814A. JAN or commercial Sylvania or GE or Philips ECG.
$21.50
12AU7/5963 NOS
Originally designed for computer switching applications, 5963 is a low cost alternative to NOS 12AU7.
12AU7/5963 NOS Matched Pair
Price is for a matching pair of 12AU7/5963 tube.
$20.00
$44.00
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