The Cyrillic designation transliterates as 6N8S and is commonly written as 6H8C. It is the Soviet counterpart to the 6SN7. The glass date marking reads 1-54, indicating January 1954 production. The glass is intact.
6N8S / 6SN7 / 1578 / ECC32. MELZ. HOLED ANODE. 1954. Etracer Tested.Metal Base.
# Etracer quick-test report. mu:18.2 V/V, reference:20.0 V/V, percent: 91.2 %. gm:2878 umhos, reference:2600 umhos, percent: 110.7 %. rp:6338 ohms, reference:7700 ohms, percent: 82.3 %. current:12.84 mA, reference:9.00 mA, percent: 142.7 %.
2 pcs NEW 6N8S /6SN7/ ECC32 Melz Metal Base tybes Matched Pair, 51 year
MATCHED PAIR – tubes has identical electrical characteristics. Different Dates 51 year. All tubes are tested on High-End Soviet Tube Tester L3-3.
6N16B-V / 6021 (1/2 6SN7) Matched Pair MELZ NEW OTK Strong Made in 1960s 2pcs
The tubes are new and never used.
4x IN-14 MELZ Small Fine Grid (IN8 IN12 IN16 IN18 ) NIXIE TUBE CLOCK TESTED 100%
NIXIE TUBE CLOCK. The height of the digits is 18 mm. Indication is through the side surface of the cylinder. Design – glass, miniature. Principle of Operation: neon gas, cold cathode. RARE tube with SMALL / FINE GRID.
6SL7 1579 REFLECTOR tube 5691 vt229 ecc35 cv1935 rca sylvania mullard matched
Actual pictures. 6sl7(1579) tube by REFLEKTOR one or more. 2tr 2.3mA, 1.84mA/V. 7 1tr 2.3mA, 1.76mA/V mar 1965. 2tr 1.95mA, 1.54mA/V. 6 1tr 1.95mA, 1.52mA/V apr 1960. 2tr 1.6mA, 1.68mA/V ?. 5 1tr 1.55mA, 1.34mA/V.
rare 6SL7 1579 MELZ tube 5691 vt229 ecc35 cv1935 rca sylvania telefunken mullard
Actual pictures. 2tr 1.65mA, 1.18mA/V.
1pcs 6SL7 1579 MELZ tube 5691 vt229 ecc35 cv1935 rca mullard matched same date
Actual pictures. 6sl7(6H9S) tube by MELZ one tube or moreTested with L3-3 tubetester at Ua=250V, Uf(dc)=6.3V , Ug=-2.Results: 1 1tr 2.25mA , 1.66mA/V apr 1956 2tr 2.15mA , 1.58mA/V 2 1tr 2.25mA , 1.58mA/V apr 1956 2tr 2.25mA , 1.58mA/V 3 1tr 2.15mA , 1.48mA/V apr 1956 2tr 2.15mA , 1.50mA/V 4 1tr 2.15mA , 1.54mA/V apr 1956 2tr 2.45mA , 1.66mA/V