KR 211
Low Frequency, high power, high gain, high voltage triode. 20-26 Watts of pure class-A power.
![KR 211](uploads/pics/211RR.jpg)
General
Filament Specifications | DC/AC Voltage | 10 V ± 5 % |
DC/AC Current | 1 A | |
Amplification Factor | 12 |
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Maximum Ratings
DC Plate Voltage | 1250 V |
DC Plate Current | 140 mA |
Plate Dissipation | 100 W |
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Power Amplifier Class A1
DC Plate Voltage | 650 V | 750 V | 1000 V | 1250 V |
DC Plate Current | 90 mA | 34 mA | 53 mA | 60 mA |
Grid Voltage | -15 V | -46 V | -61 V | -80 V |
Transconductance | 4,0 mA/V | 2,75 mA/V | 3,15 mA/V | 3,3 mA/V |
Plate Resistance | 3,0 KΩ | 4,4 kΩ | 3,8 KΩ | 3,6 KΩ |
Connection of the valve base - view from below
![](typo3temp/pics/988617ae51.jpg)