NOTE: Red rubber stamp with text ECC802S is can be very faint on these boxes.Brand new, MINT NOS NIB November 1978 Original TESLA Military Production ECC802S - Replica of the famous Telefunken ECC802S tall plate with flanges. Non-corrosive alloy pins. Made by Rožnov n.p. závod Vrchlabí.
All tubes from the same date/batch code. Produced in former Czechoslovakia (now Czech Republic). EC802S is a Premium version of 12AU7 ECC82 with low noise, and low microphonics. These tubes are very quiet and musical.
Construction seems to be a copy of the Telefunken ECC802S tubes with tall plates and rectangular flanges on the plates (by no means an implication that these sound exactly like the Telefunken ECC802S). Also the Identical in construction to 1960's Tesla Long Plate ECC803S variant.
Tested and matched on Hickok 752, just recently calibrated and modified
by Hickok expert to all Solid State to eliminate drift. From our
experience, an average Tesla ECC802S from 1970s measures between
1400-1700 mmhos on this modified Hickok 752.
Single Tube = $50. Select 2 for a Matched Pair.
