EAT KT88 Diamond Valve
Document downloads
EAT KT88 Diamond Test Report (28 KB)
EAT KT88 Diamond Valve – warranty certificate (119 KB)
PrimaLuna Prologue Premium – Hi-Fi Voice (273 KB)
Skutečně špičkové elektronky EAT KT88 DiamondEAT KT-88 Valves – Hi-Fi News (516 KB)
EATs are sensational.PRODUCT OF THE YEAR 04, Euro Audio Team KT88 Diamond Valves – HI-FI+ (123 KB)
Sonically the results are absolutely superb.Euro Audio Team KT88 Diamond valves – HI-FI+ (67 KB)
…KT88 in particular has become something of a legend, and ostensibly a benchmark for other manufacturers to aspire to.The EuroAudioTeam KT-88 and 300B Tubes: All Bottled Up – WEB EXCLUSIVE (2318 KB)
For people who want music reproduction that is closer both to what is actually on the recording and to what real music sounds like, these tubes are a must-hear.AVguide Monthly – WEB EXCLUSIVE (1966 KB)
Extra measure of transparency, high-frequency extension, and a much tighter and well-defined midbass
A KT88 tube that is in a league of it's own. This KT88 tube is available in factory-matched quartets. It's construction features include black plates, black metal base, and gold pins.
This product can be purchased directly from us. 250,- EUR per piece matched in quad or pair.
The EAT KT88 has an designed maximum anode dissipation rating of 35W and is recommended for use in the output stage of an a.f. amplifier. Two valves in class AB1 give a continuous output of up to 100W. The KT88 is also suitable for use as a series valve in stabilized power supply.
- Valve Type: *KT88 DIAMOND*
- Size – included socket: 5.2 × 12.5 cm / 2 × 4.9 inch
Characteristics:
- Plate dissipation (Max.): 40 W
- Grid dissipation (Max.) : 6 W
- Cooling: radiation
- Heater – Voltage: 6.3 V
- Heater – Current: 1.6 A
Maximum ratings:
- Anode voltage: 800 V
- Screen grid voltage: 600 V
- Va, g2: 600 V
- - Vgl: 200 V
- Pa: 35 W
- Pg2: 6 W
- Pa + g2: 40 W
- Ik: 230 mA
- Vh -k: 200 V
- Tbulb: 250 °C
Capacitances (measured on a cold unscreened valve)
- Triode connection
- Cgl -a, g2: 7.9 pF
- Cg1 -all less a, g2: 9.8 pF
- Ca, g2 -all less g1: 17 pF
- Tetrode connection
- Cg 1 -a: 1.3 pF
- Cg 1 -all less a: 17 pF
- Ca -all less g1: 12 pF
Push – Pull, Class AB 1, Cathode Bias, Ultra – Linear Connection (40% Tapping Points).
- Vag2 (b): 500 – 375 V
- Vag2 (o): 436 – 328 V
- Ia + g2 (o): 2 × 87 – 2 × 87 mA
- Ia + g2 (max. sig): 2 × 99 – 2 × 96 mA
- RL (a-a): 6 – 5 k Ohms
- Rk*: 2 × 600 – 2 × 400 Ohms
- - Vg1 (approx.): 52 – 35 V
- Pout : 50 – 30 W
- Dtot: 1,5 – 1 %
- I.M.D. : 4 – 3 %
- Wa + g2 (o): 2 × 38 – 2 × 28.5 W
- Wa + g2 (max. sin): 2 × 17 – 2 × 16 W
- V g1 – g1 ac: 104 – 71 V
- Zout: 4.8 – 4.5 k Ohms
*It is essential to use two separate cathode bias resistors.
I.M.D. intermodulation distortion measured using two input signals at 50 and 6000 Hz (ratio of amplitudes 4:1)
Push – Pull, Class AB 1, Cathode Bias, Triode connection.
- Vag2 (b): 400 – 485 V
- Vag2 (o): 349 – 422 V
- Ia + g2 (o): 2 × 76 – 2 × 94 mA
- Ia + g2 (max. sig): 2 × 80 – 2 × 201 mA
- RL (a – a): 4 – 4 k Ohms
- -Vg1 (approx.): 40 – 50 V
- Pout: 17 – 31 W
- Dout: 1.5 – 1.5 %
- I.M.D.: 5.6 – 5.6 %
- Wa + g2 (o): 2 × 26.5 – 2 × 40 W
- Wa + g2 (max. sin): 2 × 29 – 2 × 27 W
- V g1 – g1 ac: 78 – 114 V
- Rk: 2 × 525 – 2 × 525 Ohms
- Zout: 4.8 – 4.5 k Ohms
I.M.D. intermodulation distortion measured using two input signals at 50 and 6000 Hz (ration of amplitudes 4:1).