For Sale are 3 pair of Sylvania 6GH8A tubes. These tubes are in the original boxes and are brand new. I have tested and matched the pairs.These tubes are a direct drop-in in some Dynaco amplifiers, notably the MK III. They will work in an ST 70 with an adapter as the pin-out is different than a 7199, but the construction and electrical characteristics are otherwise very similar. Please confirm that these will work in you application. I have other tubes for sale and will be happy to combine shipping. NOTE: the price listed is for 1 pair of tubes.
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