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World's Best 1950's JAN CRC-5692/6SN7 NOS RCA Red Base Dual Triode Perfect Matched Pair
5692 RCA Red Base Dual Triode
Made in USA Superior designed for MILITARY Joint Army Navy (J.A.N.) critical and industrial applications where 10,000 hour life, close triode section balance, rigid construction, shock resistance, harsh temperatures, and stability are required. JAN CRC-5692 may be used to replace a 6SN7GT
- Cary 805M amps
- Cary 300 SEI
- Mastersound 845 monoblock 2008
- Audio Note M2 preamp
- Aesthetix
10,000 hour low noise substitute for a 6SN7GT
5692 RCA "HOLY-GRAIL" RED BASE "BLACK PLATES
Rarely do you see such a fine NOS tube pair with Perfect Specifications:
PAIR # 1,tube 1: 2,900/2,900 GM 110%/110% (2,600/2,600 = 100%) code 4-04 = 1954. PAIR # 1: tube 2: 2,600/2,600 GM 100%/100% (2,600/2,600 = 100%) code 56-35 = 1956. BOXES displayed are included. The bases are in beautiful condition with no splits or marks.
GREAT TESTING NOS JAN MILITARY QUALITY tubes testing over 100%
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