Since it does not appear that I will be able to build a 6M amp around this tube, I have the following for sale: One newly rebuilt, never used 8171, with new, never used PWD filament transformer, chimney and socket. Also, a large (LARGE), low-speed blower. Asking $1200.00 for the lot, plus shiping from 59802. Barrie, W7ALW, DN36au, QRV 6M, 432 & 1296 EME