Mixed Manufacture 5Y3GT Vacuum Tubes. For sale I have a trio of 5Y3GT made in Japan (20 and Russia. I rejected only a couple in this lot. These are very good tubes. Tubes carefully tested for emissions, shorts, gas, life and leakage. ).
Tubes are in stock in the USA6I1P (6И1П) Triode-heptode 100% New ItemOld stock. The tubes are new and never used"Reflektor" factoryDirect replacement for 6U1 / ECH81 / 6AJ8Same Date code - May 1978 (from same batch / box)Tested and Measured Pair 6I1Ptubes were tested in triode modeWe test our tubes from this type on High-End Military Tube Tester: L3-3Measured parameters attached to each tube, difference < 3% on the photo shows an example of tubes with parameters, if you need actual parameters - please askLot of 2 (Matched & Balanced Pair) Other tubes in stock in the USA (the range and quantity is constantly increasing): US Stock Vacuum Tubes Shipping:Tubes are in stock in the USA, and will be shipped via USPS Ground Advantage ®To all other countries through eBay International Shipping program
1974 Matched Pair 6N23P Double Triode Holy Grail Audiophile Grade Vacuum Tubes. Silver Shields.
MATCHED Balanced PAIR Reflector 6N23P = 6DJ8, E88CC, CCa.NOS RARE DATE CODES 1974 YEAR. HOLY GRAIL.SWGP (Single Wire Getter Port) This tubes are one of the best soviet tubes ever made.Holy Grail SWGP Silver Shield (ECC88 6DJ8 E88CC 6922 CCa) Reflektor tube plant in Saratov USSR in 1975. The parameters are measured at Uf = 6.3 V, Ua = 90 V, Bias voltage = -1.3 V The main parameters for 6N23P at U n = 6.3 V, U a = 100 V, Uc = 9 V, R k = 680 Ohm; for 6N23P-EV at U n = 6.3 V, U a = 90 V, R k = 82 Ohm; for ECC88 at U n = 6.3 V, U a = 90 V, Uc = -1.3 VParameterConditions6H23P6N23P-EVECC88Unit rev.Analog—6DJ8, ESS88,ESS189—Filament current—310±25310±25335mAAnode current—15±515±515mAat the beginning of the characteristic at U c = -8 V≤0.1≤0.1—Reverse grid current—≤0.2≤0.15—μALeakage current between cathode and heater—≤15≤15—μASlope—10-12.712.5±2.512.5mA/VU n u003d 5.7 V≥8.5≥8—Gain—34±932.5 +7.5 -8.533—Input impedancef = 200 MHz500——OhmEquivalent noise impedance—300——OhmVibration voltageR a u003d 2 kOhm≤150≤75—mVInterelectrode capacitancesinput3.6 +0.9 -0.853.6±0.93.3pFoutput of the 1st triode2.1 +0.35 -0.32 +0.45 -0.41.8output of the 2nd triode1.95±0.32 +0.45 -0.41.8checkpoint≤1.55±0.3≤1.5±0.31.4between the anode and cathode of each triode≤0.24≤0.240.18between anodes of triodes≤0.09≤0.09≤0.45between grids of triodes≤0.005——Operating time—≥5000≥5000—h
MATCHED Balanced PAIR Reflector 6N23P = 6DJ8, E88CC, CCa.NOS RARE DATE CODES 1974 YEAR. HOLY GRAIL.SWGP (Single Wire Getter Port) This tubes are one of the best soviet tubes ever made.Holy Grail SWGP Silver Shield (ECC88 6DJ8 E88CC 6922 CCa) Reflektor tube plant in Saratov USSR in 1975. The parameters are measured at Uf = 6.3 V, Ua = 90 V, Bias voltage = -1.3 V The main parameters for 6N23P at U n = 6.3 V, U a = 100 V, Uc = 9 V, R k = 680 Ohm; for 6N23P-EV at U n = 6.3 V, U a = 90 V, R k = 82 Ohm; for ECC88 at U n = 6.3 V, U a = 90 V, Uc = -1.3 VParameterConditions6H23P6N23P-EVECC88Unit rev.Analog—6DJ8, ESS88,ESS189—Filament current—310±25310±25335mAAnode current—15±515±515mAat the beginning of the characteristic at U c = -8 V≤0.1≤0.1—Reverse grid current—≤0.2≤0.15—μALeakage current between cathode and heater—≤15≤15—μASlope—10-12.712.5±2.512.5mA/VU n u003d 5.7 V≥8.5≥8—Gain—34±932.5 +7.5 -8.533—Input impedancef = 200 MHz500——OhmEquivalent noise impedance—300——OhmVibration voltageR a u003d 2 kOhm≤150≤75—mVInterelectrode capacitancesinput3.6 +0.9 -0.853.6±0.93.3pFoutput of the 1st triode2.1 +0.35 -0.32 +0.45 -0.41.8output of the 2nd triode1.95±0.32 +0.45 -0.41.8checkpoint≤1.55±0.3≤1.5±0.31.4between the anode and cathode of each triode≤0.24≤0.240.18between anodes of triodes≤0.09≤0.09≤0.45between grids of triodes≤0.005——Operating time—≥5000≥5000—h