Heathkit VFO VF-1 Variable Frequency Oscillator Yes, today we have here the last of a large estate sale lot I purchased in the spring. This 50's Heathkit VFO is in good physical condition, it comes as

 

This auction is for 2 pcs. of boxed and believed NOS Continental brand type 81 rectifier tube with big ST bulb- brand printed on bases. Both of these look and test excellent on Hickok type 532 tester-

 

Here's a vintage 6V6G labeled Super Silvertone that has been fully tested on a B&K 747 tester for emissions, shorts, mutual conductance, and tube life. This tube tests at 82. It has half smoke

 

vintage quenched spark plate 5 inches long and 3.5 inches wide and 3/4 all I know is its from engineering lab and I found the drawing in a folder that deals with tesla coils ,I have no idea why there

 

 

Pair 2 Vintage TELEFUNKEN vacuum audio tubes ECC82 12AU7 Long Smooth Plate NOS NIB COMMENT - (2 hole) 17mm Long Smooth Plate (very desirable) Diamond base - < > Condition - New in Box / Same sou

 

2 New ClosedMatched Telefunken EC8020 NOS For sale are two new and unused tubes Telefunken EC8020 with gold pins and diamond on the glass bottom in box. Same production code: „U 100130 S“= Ulm at

 

Excellent lot of six factory recorded classical vocal reel to reel tapes featuring major orchestras, conductors, soloists and labels. All are 7.5 IPS, have been play tested and have the original inser

 

howudoin60 Store USED STANCOR PC8404 POWER TRANSFORMER. RATED FOR 260-0-260V @ 90mA ALSO HAS FILAMENT LEGS OF 6.3VCT@3A @ 5VCT@2A 100% TESTED & GUARANTEED WORKING CONDITION. THIS UNIT CAN BE COMBI

 

These tubes were all tested strong on TV-7 tube tester with the following values: 23, 23, 22, 24, 24, 18. A passing value is 16. From estate of former electronics repair shop owner.