NOS RFT ECC83 / 12AX7 1958
1958-1959 EFT ECC83 / 12AX7
Only a couple left due to Pre-Orders
Almost sold out
A well documented & respected Tube across the audio community Prized for its mid range articulation and focus
Description & testing
NOS 1958 RFT ECC83 / 12AX7 with foil getter - Funkwerk factory
Pins cleaned well, both triodes are tested for Gm & Ip and also includes Microphonics & Gain test measurements, something most vintage testers can't really do. All via regulated power supply.
Tone Profile
Richer, slightly sweeter tone with possibly more body then later the models but very much all the same, Killer midrange, mid focus, great clarity with some pronounced percussive / transient details
Tests slightly lower which is perfectly fine for the age, Tubes are in great physical condition both internally and externally, importantly they sound great too maybe a little more refined and sweeter compared to contemporary models.



