Lampa NOS ( Tub ) Psvane 274B-T-MKII Reference Mark 2 T-series - Psvane

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Psvane274B-T-MKII Psvane Reference Mark 2 T-seriesRectifier tube: Psvane 274B-T2 Psvane Reference T-series Mark 2, 1 piece274B is very close in all spec details to 5U4G, 5Z3P and even 5AR4/GZ34. 4FIa (dc)..................? 220mA. ................ 750mA Ua ........................500VC max. ................ 1550V Ia max.
To replace a 5AR4 or GZ34 please refer to your amps manual to make sure this minior increase in current can be tolerated by the amps power supply before (!) you use a 274B instead.
All Psvane tubes are selected to the highest grade and re-tested at Tube Amp Doctor in Germany.
Suggested burn-in time is 30-40 hoursabsolute Maximum Ratings Ua max................
Since that difference is very small most good designed amplifier power supplies should easily accept this.
A 5AR4/GZ34 requires 1.9A only.
The 274B requires a filament current of 2A which is lower than the 5U4G/GB or 5Z4P which would need 3A.
Psvane274B-T-MKII Psvane Reference Mark 2 T-seriesRectifier tube: Psvane 274B-T2 Psvane Reference T-series Mark 2, 1 piece274B is very close in all spec details to 5U4G, 5Z3P and even 5AR4/GZ34