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NOS U.S.NAVY 1944 RCA CRC-6SN7 GT black-plate black-glass MATCHED PAIR
NOS U.S.NAVY 1944 RCA CRC-6SN7 GT black-plate black-glass MATCHED PAIR

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Product Code: RCA-CRC-6SN7GT

NOS Original 1944 U.S.NAVY CRC-6SN7-GT 1944 NEW-IN-BOXES LOW-NOISE BLACK PLATE PAIR with "D" Getters: (Both tubes have identicle inner construction, RARE ROUND-PLATES & ROUND MICAS,
D-Getters, copper-posts, Black-Plates, BLACK-GLASS with Mirror bottoms!  RARE!
& [6SN7 GT] in RCA stop-sign brackets on tube.
pair 1:
tube 1: 3,400/3,400 (130%/130%)  tube 2: 3,400/3,150 (130%/120%) pair 2:
tube 1: 3,080/3,100 (120%/120%) !
tube 2: 3,000/3,000 (115%/115%) !
( 2,600/2/600 Gm = 100%)  ( 9.0mA/9.0mA Gm = 100%)
When The United States Navy, New York had their 6SN7 made for their amps, they specified the copper grid posts, coated glass, staggered plates
and DEFLECTION SHIELDS only! These STAGGERED PLATES are designed to "deflect" unwanted electron bombardment to prevent cathode-poisioning. They work as a deflector-shield and help the tube achieve its correct operation point and last longer and operate cooler.
Recommended for:
- Deja Vu Audio Type 45 amp
- Cary preamps and amps
- Singlepower
- Ultraverve
- Supratek
- Wheatfield HA-2 headphone
- Cary
- Rogue
- Canary Audio
These tubes are "PROFESSIONAL SPECIAL QUALITY" Premium Quality Amplitrex Digitally Tested Audio tubes
The USA made 6SN7's are the best sounding tubes and are increasingly hard to find, new or used, in a low-noise condition.
Within 4 points are considered Matched & Balanced: Example 3,000 Gm and 3,400 GM is considered matched to the point that the human ear can not tell any discernable difference in stereo seperation, etc. Some RCA's shipped in Sylvania boxes, and some in Navy Stamped Red RCA boxes  depending on current selection availability.

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