Psvane KT66GC tube 1pair
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Item#: KT66-GC
$395 (unit price)
Quantity:
$395 (unit price)
Quantity:
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| Quantity | Unit price (USD) |
| >= | $ 395 |
| >= | $ 365 |
| >= | $ 335 |
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Features and Specifications
Beam power tetrode KT66GC/KT66GE, its anode limit dissipation power is 25W. In the audio amplifier for A1, AB1, AB2 class amplification. hot wire heating
UH………… 6.3 V
IH………… 1.27A
limit rating
Tetrode connection Triode connection
Anode voltage……………… 500V 400V
2nd grid voltage ………… 400V
Anode Dissipated Power ………… 25W 25W
Second gate dissipated power...3.5W
Cathode current ………… 200 mA
Voltage between hot wire cathodes …… 100 V
first gate resistor
When self-biased
0.5 MΩ
When the bias is fixed
0.1 MΩ
Interpole capacitance
Tetrode connection method Triode connection method
Input Capacitance ...... 16 8.7 PF
Output Capacitance ...... 11.5 15.8 PF
Across Capacitance ...... 1.1 7.2 PF
static parameters
-Ug1(approx)…15V
Gm……………………6.3mA/V
ri ……………… 22.5KΩ
RL……………… 2.2KΩ
Pout………………7.25W
Dtot………… 9.0%
Recommended working status (reference value)
Single tube A1 class amplification, triode connection
Ua, g2……………… 400 250 V
-Ug1………… 38 19V
Rk(per tube)……………… 600 Ω 350 Ω
RL…………………… 4.5 2.75 kΩ
Ia(0)…………………… 63mA 60mA
Gm…………………… 5.5mA/V /
ri ……………… 14.5KΩ /
Pout ……………… 5.8W 2.2W
Dtot………… 7% 6.0%
Push-pull tube A1 class amplification, triode connection
Ua, g2……………… 400 250 V
-Ug1………… 38 20V
Rk(per tube)……………… 600 Ω 360 Ω
RL…………………… 4 2. 5 kΩ
Ia(0)…………………… 2X 62.5mA 2X 55Ma
ū (g1-g1.pk)………… 80 V 40 V
Pout ……………… 14.5W 4.5W
Dtot………… 3.5% 4.5%
Swap AB1 class amplification, super linear connection
Fixed Bias Self Bias
Ua……………… 552 450 V
Ug2……………… 525 425 V
-Ug1………… 67 35V
Rk…………………… 560Ω/
RL(a-a) ………………8 7 kΩ /
ū (g1-g1.pk) ...... 127 V
Ia+g2(0)……………… 2×35 2×62.5 mA
Ig+Ig2(max.sig)…… 2×80 2×72.5mA
Pout……………… 50 32W
Dtot ……………… 3 2 %
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