KR Audio 211 (matched pair)
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There are 845s and 211s in stock in the US with potentially shorter delivery times. Please send an e-mail for us to check stock and confirm delivery times.
This is the KR Audio 211. Delivers 20-26w of pure, Class A power. Sold in matched pairs. This is a perfect replacement for any 211 tube in an Art Audio amplifier and can be purchased as an upgrade for your Integra 211.
In other amps, please contact the manufacturer to determine compatibility. The standard 211 has a 3.5 A Filament Current while the KR has a 1.0 A Filament current. Many amps require modification to use this tube.
KR Audio offers a six month warranty on all tubes from the date they arrive at wholesaler or the date they are installed in an OEM amplifier.
| Maximum Plate Voltage | 1250 V |
| Maximum Plate Current | 140 mA |
| Plate Dissipation | 100 Watts |
| Va | 650 V |
| Ia | 90 mA |
| Vg | -15 V |
| Transconductance | 4.0 mA/V |
| Amplification Factor | 12 |
| Filament Voltage | 10 V (DC/AC) |
| Filament Current | 1.0 A |
Delivery will typically take 2-4 weeks as these are special order. Delivery time is longer during August when KR is closed for Holiday.
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