12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany
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12AX7 ECC83 Preamp tubes Vintage (I61 code) Siemens & Halske, West Germany

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Holy-grail Siemens & Halske Munich West Germany tubes. The rarest 2-getter support audio tubes ever made, with fast response, overwhelming detail, the most realistic bass, and overall perfection in a 12ax7 / ecc83 class tube.

The most rare of the West German 12ax7's! Double getter-supports - recommended for low microphonic applications. Great sounding West German workhorse tubes, reproduces sound with accurate tonality.

Superb choice for hifi preamps and guitar amps. The ecc83 double getter support design is a 12ax7 low-noise rated long-life tube made to last 10,000 hours or more.

Matched Quad of Dynaco Labeled ECC83 / 12AX7 by Philips (Siemens & Halske)

All 4 tubes are Coded I62 ≠3E - Made in Munich, West Germany in 1963

I62 indicates ECC83, ≠ is the symbol of the Siemens Halske Munich W. Germany factory, 3 is for 1963, E is the month of May

14mm Long Grey Laddered Plates

Dual Rod Supports for the Top Halo Getters

Crosshair Seamed Glass on the Tops of each tube

Tubes Flash on Startup like a Mullard

Tested:
  • Tube 1 - 100% and 100%
  • Tube 2 - 105% and 104%
  • Tube 3 -   97% and  99%
  • Tube 4 - 100% and  99%
I suggest you do a little internet research on these tubes, you'll find out just how desirable and how very rare these actually are. You will see that these are in fact "the most desirable" and best rendition of these 12AX7 tubes. These tubes meet all of the criteria outlined below regarding their authenticity and quality.

Here's some info on these tubes borrowed from "The Tube Museum" in New York - 

Make sure you are buying Real Siemens Halske 12AX7 tubes - 
They have double-halo-support-rods
shiny triangular or gray coated points ( 4 on top mica and 4 on the bottom mica)
Siemens Halske ‡ codes in the glass.

 Real Siemens Halske Double-Ring/Halo-Post-Support* and Triple-Mica Tubes were only made from 1961 - 1970 (These are the only ones you want!)

Codes I61 ‡1X were made in 1961 (Extremely Rare) Double-Ring/Halo-Post-Support* and Triple-Mica Tubes

Codes I62 ‡2X were made from 1962 - 1966 (Extremely Rare) Double-Ring/Halo-Post-Support* and Triple-Mica Tubes

 * Codes I63 ‡7X were made from 1967 - 1969 (Extremely Rare) Double-Ring/Halo-Post-Support* and Triple-Mica Tubes

Codes I64 ‡0X were made in 1970 (Very Rare) Double-Ring/Halo-Post-Support* and Triple-Mica Tubes

Sad News: Keep Away from Eastern-European Siemens alternate production - After 1979 Siemens closed down the Halske-Munich Factory and set up shop in Eastern Europe and the ECC83/E83CC design went single-post construction (not recommended as fine audio tube in ECC83 / E83CC /ECC803S applications ) but O.K. for ECC81 / ECC801S made in the Munich Factory only! Munich Factory single-post halo is O.K. but Eastern Europe single-post halo is not recommended.

Make sure you are buying Real Siemens Halske CCa = E88CC / 6922 tubes - 
 They have the double-stage getter frame-grid construction, 
 Gray separator or Gray Electrostatic shield, 
 4 seams on top and  
 numbers in the glass between the pins
 Siemens & Halske S+H logo on the front of the tube with "painted serial numbers" for the pre-1960 versions and 
 ACID-CODES for the 1960 - 1965 versions. After 1966 the acid-codes may change to codes stamped on tiny metal rectangles soldered onto the sides.

  • Tested on a calibrated Jackson 648-R - Auditioned in a Dynaco Preamp
  • No shorts or leakage detected
  • Excellent Tube Life Expectancy readings for all 4 tubes
  • Super clean print, straight clean pins

Tubes will come with new individual generic tube boxes and will be expertly packed for safe shipment
Ships UPS - Insured - signature required
As Is Sale - No Returns No Refunds or Partial Refunds Due to Age and Nature of these Items
No Exchanges - Due to Swapping Potential

Purchasing this listing implies consent and agreement to these terms and conditions