General Electric GE 6EH4 6EH4A 6EA4 Vacuum Tube Valve NOS NIB

General Electric GE 6EH4 6EH4A 6EA4 Vacuum Tube Valve NOS NIBThis new old stock, new in box GE 5 Star 5663 premium tube tested to spec on our Paul Hart calibrated TV7 U. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS

rectangular mica spacers and anode radiators for cooler tube operation and longer life

There is also a shield between the triodes for reduced cross talk

It measured a perfectly-balanced 44/44 where minimum (65%) is 40/40 and 100% is 62/62

48 and 49 where minimum (65%) is 30 and 100% is 46

It measured a perfectly-balanced 42/42 where minimum (65%) is 40/40 and 100% is 62/62

There were some pops and ticks

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These six 12BY7 / 12BY7A / 12BV7 tubes tested as follows on our Paul Hart-calibrated TV7/U where minimum (65%) is 46:

The dust jacket shows some wear

new in box GE 6CG3 / 6CE3 / 6CD3 tested to spec on our Paul Hart-calibrated TV7/U

Two are rca

new in box RCA 6GU7 tubes for sale in this listing