Triple Platinum Matched on Amplitrex AT1000 – TESTS NOS. Amplitrex AT1000 Test Results 90%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs. RCA 2A3 Triode Power Tubes (Pair). All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise).
Item Tag: 2A3
RCA 2A3 Spring Top Triode Power Tubes PLATINUM MATCHED on AT1000
Triple Platinum Matched on Amplitrex AT1000 – TESTS NOS. Amplitrex AT1000 Test Results 90%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs. RCA 2A3 Triode Power Tubes (Pair). All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise).
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2A3 NOS 1945 RCA 🇺🇸 SINGLE TUBE 🇺🇸 Made in USA 🇺🇸 1945 End of WWII
1960 RCA 2A3. In 1945, RCA 2A3 vacuum tubes were primarily used. RCA Bi-Plate 2A3 (1945-1949). Made 1945 to 1949. ( 2A3 MOTHER OF HIGH FIDELITY). The year 1945. 🇺🇸The END of WWII. 🇺🇸 Tube most likely made by a Woman of the GREATEST GENERATION EVER!
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Matched Pair RCA USN CRC 2A3 Dual D Getter Vacuum Tubes Amplitrex NOS 1943 Date
Both tested NOS and matched using an Amplitrex AT1000 tube tester with the following results (as photographed): Tube 1 85% ip 97% gm Tube 2- 82% ip 97% gm
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Matched Pair RCA USN CRC 2A3 Dual D Getter Tubes Amplitrex NOS Same Dates 1942
Both tested nos and matched using an Amplitrex AT1000 tube tester with the following results (as photographed): Tube 1 95% ip 100% gm Tube 2- 95% ip 104% gm Both have the same date (Dec. 1942). And identical contract #s 94712 Very rare