| Name | 1Zh29B-R | | Type | penthode | | Application | HF voltage amplification | | Cathode type | oxide,direct heating | | Envelope | glass,miniature | | Mass,g | 4,5 | | Filament voltage,V | 1,2/2,4 | | Filament current,A | 0,056-0,068/0,031 | | Anode voltage,V | 60 | | Grid1 voltage,V | 0 | | Grid2 voltage,V | 45 | | Steepness,mA/V | 1,2 | | Reverse grid current,uA | 0,3 | | Microphnic noise,mV | 130 | | Socket type | flexible |
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