Here is a great buy at 2 tubes. all tested on our hickock 533 tester. both triodes mutual contance was reading steady and true at 1100-1200 micromhos on each plate . 1250 is the rating for a brand new

 

Here is another Amazing and Beautiful Matched Pair of 2 New Old Stock 1950's Vintage CBS Hytron 5U4G Black Plate, Side "D" Getter, Matched Tubes MIB. These came out of inventory of an old closed down

 

You are bidding on a Vintage 1964 Heathkit Electronics Catalog. This is catalog #81/40 and it is used and in good condition. It has 98 pages of neat Heathkit items that were available for that year. T

 

This is in very good working condition. My husband put a battery in the radio, and the batteries inside the amplifier and it worked!!! This is all in very good condition but there is one chip to the b

 

One Metal Base Sylvania 6SN7 GT Audio Receiver Guitar Vacuum Tube made in the USA in the 40s. This preamp tube has black T plates (3 stitches), copper posts, metal base collar, and a top getter flash.

 

DATAMATH CALCULATOR MUSEUM sells on eBay Texas Instruments Bossard Bolted Joint Calculator - FRANKEN TI-58X Introduced together with the legendary TI-59, the TI-58 introduced a novelity, the Solid Sta

 

Pilot FM 530 Tube Tuner Excellent Original Condition This is a beautiful piece. It is in excellent overall condition. It appears 100% original & untouched. I powered it up on a variac to be safe,

 

Perfect Vintage Matched Pair Audio Tubes Mullard 6V6G British Made Used in Fender and many other amp* Come out from military reserve The tubes have the british military symbol -> on the base The tu

 

Good Day to you and thanks for stopping by. Please read description carefully. Up today we have 2 Pcs of beautiful GE JAN 5751 tubes. These beauties are new in original box and have never seen a socke

 

This auction is for 6 Telefunken tube sockets for АZ11,AZ12,ECL11,EL11,EL12,EF11 etc. The sockets are used,but in very good condition. Worldwide shipping