1940's pair of RCA Grey Glass 6F8G.   

Faded label on one. Test strong at 2550/2850 & 3000/3200 where 1700 is good in a Triplett 3444/Westmore 501 laboratory tube analyzer restored and upgraded by Paul Hart.

All tubes are guaranteed to test 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.