These tubes have not been tested.  The RCA has a rattle and the base is slightly lose.  The National union tube is huge and appears to be in perfect condition, a really beautiful tube.  I will comb

 

Listed in this auction is a Halldorson HVPT-6 Tube Amp Power Transformer (please see "HVPT-6" marking at the center of the transformer in the picture) Specifications: Primary 117V 50-60 Cycle, (Black

 

Stromberg-Carlson Model 20 amp, about 1940, in nice, as found condition. See all pictures. Needs new power cord. Comes with all tubes as shown. 6L6's and 5U4G test good. Transformers test good. Not te

 

Here are 14 5U4 GB tubes. All are used and all that are in the number 14 are good. We have a couple in the group that are in the middle - so we are calling those 15 and 16 as a gift.FREE SHIPPING to U

 

If your reading this then you already know how great this tuner is and as many proclaim, legendary and have compared it to the "Supreme 600T", therefore I will not go into the specs but rather its ove

 

Vintage Reel To Reel Automatic Reverse 4300 excellent condition

 

These are my uncle's speakers and they are pristine. He bought them NEW and they've been in his same, climate-controlled, non-smoking home in Ohio, on the shelf for over 40 yrs. He used them with an o

 

OFFERING four (4) Type A1729 Point-contact transistors . (Any point contact type of transistor is collectible, identified because there is a small hole on the unit to allow for manual adjustment of th

 

DATAMATH CALCULATOR MUSEUM sells on eBay Texas Instruments TI Programmable 59 - CAL-Q-TAX Introduced together with the legendary TI-58 these calculators introduced a novelity, the Solid State Software

 

This auction is for a like new rarely used fiio e6 heaphone amp and I also purchased the ipod iphone connector (this was purchased seperately)that I am including in this auction. This is a genuine fii