Guys,
I need help finding info on this tube.
I picked it up at a local hamfest, It is a black base, tall glass 6sn7gtb.
What concerns me is it has a top getter which is a round or halo type.
Also it is white labeled on glass made in Italy. All others i have used are all made in USA. And no top getters.
Any help or info would be great.. Also date code is SV 188-5. Which from past research should be 1966.
Help please... Thanks
I need help finding info on this tube.
I picked it up at a local hamfest, It is a black base, tall glass 6sn7gtb.
What concerns me is it has a top getter which is a round or halo type.
Also it is white labeled on glass made in Italy. All others i have used are all made in USA. And no top getters.
Any help or info would be great.. Also date code is SV 188-5. Which from past research should be 1966.
Help please... Thanks
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