Western Electric Type 101L Radio/Audio Tube, Good
It tests at 90% of the specifications for a new tube for mutual conductance, Gm, on my Amplitrex AT1000 tester. On the TV-7D/U it tests at 34 where the minimum for a good tube is 28. The date code is 6413.
Eimac Type 4X300A Transmitting Output Tube, NOS
The tube itself is still sealed in its plastic pouch. The pouch has a scratch which has allowed air to get in and slightly tarnish the silver plating on the tube, but the tube has never been out of the plastic pouch.
Western Electric Type 338A Radio/Audio Triode Tube, NOS
O n my military TV-7D/U tester it tests good, firing at the correct reading, and of course, lights up blue from the Argon gas. The date code is 5852. It is seldom seen Western Electric tube for your collection.
QTY 1 Vtg RCA 5R4GY Rect. Tube, ST Shape, Brown Base, Hanging Fil. , Tested
Quantity of one RCA 5R4GY Rect. tube sold in box. Tested with Weston 981 or Heath TT-1. Brown Base.
Ken-Rad Type 10 Radio/Audio Output Tube, Tests Strong
You are bidding on a Ken-Rad type 10 radio/audio output tube. It is a used tube, but tests strong at 92% of the specifications for a new tube, or 1.2ma/v for mutual conductance, Gm, on my Amplitrex AT1000 tester. So it is a nice strong early tube with hot stamped base. It has the jumbo ST shaped envelope. It should sound great in your amplifier. Shipping weight is 13 ounces. Please see my other auctions for more interesting tubes and audio items.
Siemens Type 10000/0 25/1 European Radio/Audio Tube, Unusual
It unusual with a lightbulb sized screw base and top cap. My guess is that it is a rectifier.It is an interesting tube that should be useful or great for a tube collection.
Amperex Type EL84/6BQ5 Radio/Audio Tube, Bugle Boy, NOS
On my Amplitrex at1000 tester it tests at 95% of the specifications for a new tube for emission, Em, and 89% for mutual conductance Gm. It has the bugle boy emblem, and of course was made in Holland.
United Electronics Company USAF-596 Radio/Audio Rectifier Tube…Nice…
Tight base and pins. As is in pictures.
Type JAN-100TH, VT-218 Transmitting Output Tube, ICE, Nice
I believe this is a 100 watt output tube. It is a uniquely shaped tube on a four pin base with side and top leads for the plate and grid. It should be put to use.
Sylvania 6U5 Eye Tube, Similar to 6E5, Tested
I rate the brightness at least 8/10. Looks good.
