Sylvania 6Q7 Vacuum Tube NOS NIB

Sylvania 6Q7 Vacuum Tube NOS NIBThis new old stock, new in box Sylvania 6Q7 tube tested to spec on our Paul Hart calibrated TV7 U. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP TO $250 IN VALUE. IF AN ITEM IS MARKED "DELIVERED," AND YOU HAVE NOT ACTUALLY RECEIVED IT, THE FIRST STEP IS FOR YOU TO CONSULT YOUR MAIL CARRIER TO GET THE EXACT COORDINATES OF THE DELIVERY AND ARRANGE FOR YOUR ITEM'S RETRIEVAL. IF

This Continental Electric JAN-C1K appears new

Its diodes measured 14 and 12

Tube One measured 49/49 while Tube Two measured 51/51 where minimum (65%) is 40/40 and 100% is 62/62

Tube Two measured 27/1580

new in box GE 6AG5 tubes tested to spec on our Paul Hart-calibrated TV7/U

Date Codes: 1-43 and NK

There are nine new old stock

These three RCA-MANUFACTURED 6U7 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

Transconductance measured 66 for Tube One and 70 for Tube Two where minimum (65%) is 58

This new old stock-testing Tung-Sol clear bottle type / number 38 tube tested 54 on our Paul Hart-calibrated TV7/U where minimum (65%) is 26 and 100% is 40

This perfectly matched pair of General Electric 6AU6A tubes was tested on our Hickok 800 for shorts

This GE 6AS5 tube tested to spec on our Paul Hart-calibrated TV7/U