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Phenomenal Valvo or Siemens Halske ECC83 12AX7 "LONG PLATES" 1950's "D-FOIL-GETTER" NOS SINGLE TUBE OR PAIR!
Phenomenal Valvo or Siemens Halske ECC83 12AX7 "LONG PLATES" 1950's "D-FOIL-GETTER" NOS SINGLE TUBE OR PAIR!
Siemens Halske ECC83 12AX7 "LONG PLATES" 1950's "D-FOIL-GETTER" NOS


 
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1950's VALVO /  SIEMENS HALSKE

LONG-PLATE ECC83/12AX7

"LONG PLATES" 1950's "D-FOIL-GETTER" NOS

Considered the HOLY-GRAIL of the Siemens & Halske Munich West Germany tubes. This is the rarest "D" getter support audio tubes ever made, with fast response, overwhelming detail, the most realistic bass, and overall perfection in a 12AX7 / ECC83 class of tubes.  The most rare of the West German Long Plates!
Rare. Great. Made only from from 1950 to 1956.

Perfect Specifications with high mA & Gm:

Factory Spec is 1.2mA & 1,60mA/V (1,600 per triode)

Tests: 1.1mA/1.0mA and 1,98mA/V (1,600/1,600) 1.90mA/V (100% to 100%) WOW!

12AX7 AUDIOPHILE VALVE

BRING SOME SONIC-COLOR INTO YOUR AUDIO SPECTRUM ...

Siemens Halske LONG PLATES balanced and matched liquid smooth sounding with excellent extended bass, midrange, & highs

CRYSTAL CLEAR GLASS BOTTOM 100% NOS WITH NO BURN MARKS because it's NEW NOS!

PRICED EACH! Phenomenal  Testing & Sounding Siemens Long-Plate 12AX7/ECC83 Low-Noise NOS Audio tube, rare painted-glass bottom mCP codes, made for audio! This version offers smooth highs, lots of open air, excellent realistic bass response, smooth extended midrange for audio applications, or for the guitarist get for that deep world renoun tone with high performance.  Valvo or Siemens 1950's Audio tubes typically have better section balance and lower noise and microphonics than run of the mill 12AX7 or ECC83.

mCP codes on both tubes!
LONG PLATES
FOIL-GETTERS (is a "D" getter with a FLAT-FOIL Plate)

average 1,400/1,400 to 1,600/1,600 (100%/100%) GM / uMhos! WOW!

Box displayed INCLUDED in sale!

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