NOS pair of RCA Grey Glass 6F8G.  Matching construction.

One in Telephone Company Box and relabeled for ITT.

Test 2300/2300 & 2300/2300 where 1260 is good in a calibrated Hickok 539-B tester.

Listening tested in a Maxi-Preamp noise tester for excessive noise & microphonics.  

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.