Amperite 3TF4 current regulating resistor tube. 

5905-549-1524

Resistance measured with a multimeter. Tube otherwise untested. 

Buyer shall determine whether the tubes are serviceable prior to purchasing. 

Buyer shall ensure that the circuit the tube is being installed in is functioning properly (no voltage or current spikes that could damage the tube are present) prior to installation.

Price is as listed or best offer.

No guarantees are made as to the quality or expected longevity of this tube. 

Item is sold as is and with no warranty.