Strong. Small D Getter with 2 rivets. 

Test 1500/1800 for gm where 1000 is good at 250 volts

in a Triplett 3444/Westmore 501 laboratory

tube analyzer restored and upgraded by Paul Hart.

Listening tested for excessive noise and microphonics in a Maxi-preamp 2 noise tester.

All tubes are guaranteed good or may be returned.  

Shipping includes insurance.

Please see our other items for more vintage tubes & audio.

We combine orders for shipping.

We do not change values for customs.  

Thank You.