Tung-Sol ,a Quad 6550 Tubes, black PlatesTung-Sol , a Quad 6550 Tubes, black Plates from1957!Very seldom Tung-Sol 6550, a Quad from 1957, all very strong measured, over 6300 microhmos with my Hickok 6000 A tubetester. Datecode.: 57-21-3, 57-24-3 and 2 x 57-27-3. Tested also in my Scott-L...922.00

Tung-Sol , a Quad 6550 Tubes, black Plates from1957! [Expired]


no longer for sale

Amended on

Typemistake.! the indicator of the Hickok is running full over 6000, to maximum!!

Very seldom Tung-Sol 6550, a Quad from 1957, all very strong measured, over 6300 microhmos with my Hickok 6000 A tubetester. Datecode.: 57-21-3, 57-24-3 and 2 x 57-27-3. Tested also in my Scott-LK-150. It have Black Plates and a Top Getter, it is the first and best sounding generation. Privat sale! No guarantee, because old! Will be really safe and well protected packed.
Seller Information

pottedman 

Last 12 months
All-time33100.0%

Member since September 2008

Items from this seller