TENNESSEE EQUIPMENT MODERATED NEWSGROUP AND LIST > Midwest
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> Heintz&kaufman 5784WA tube nos sub mini tube 5784
Heintz&kaufman 5784WA tube nos sub mini tube 5784
Heintz&Kaufman 5784WA Tube NOS NIB Sub Mini Tube
My tube tester is a SECO 107A Dynamic Mutual Conductance Tester. Good is at 60, but all tubes listed as NOS or NIB will have tested over 100, have no shorts, leaks or gas.