TUNGSRAM S406 RES094 B442 TUBE TESTS 130% SUPER ONDOLINA 632B1 RADIO VERY RARE

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TUNGSRAM S406 RES094 B442 TUBE TESTS 130% SUPER ONDOLINA 632B1 RADIO VERY RARE:
$39.00

TUNGSRAM S406 TUBE
B442 - H406D - H410D - RES094 - S406 - S410
Screen-grid tetrode
Vf 4 Volts / If 0.06 Ampere
extremely rare tube made in Austria in mid 1930\'s
looks great and tests 130%
Ia=2,0mA
where 1,5mA is 100% for the new tube
Europe 4-pin (B4) Top contact with a cap
you will get the tube from the pictures
sorry no box this time
I always send the tubes by priority registered mail with tracking number within hours after receiving payment.