Unique vintage tech 264 total items
Foton 1960s, square getter, gold grid, matched pair, similar to ECC99/E182CC/6CG7
Vintage 1950s metal base double triodes, tested on L3-3 with measurements attached. Premium matched pair from legendary MELZ factory.
NEVZ factory, matched pair with test data, equivalent to 6SN7/1578/ECC32
Very rare 1950s ribbed anode construction, tested on L3-3 with parameters documented. Premium matched pair from FOTON factory.
MELZ rare metal base construction, matched pair tested on L3-3, equiv. to 6SL7/1579
Reflector matched pair tested on L3-3, 5000hr durability, similar to EL83/SV-83
Reflector matched pair in original boxes, same date, 5000hr durability, tested on L3-3, similar to EL83/SV-83
Matched date miniature pentodes, NOS with OTK quality stamp, audio output tubes
Reflector factory, matched pair with test data, equivalent to 6L6/5881/EL39
Enhanced version, Reflector factory, matched on L3-3 tester, equivalent to 6L6GC/5881
Svetlana 1950s production with butterfly getter, matched pair tested on L3-3
Matched pair of Svetlana output triodes from 1963 with black anodes. Tested on L3-3, 2.8W output power, 500hr service life.