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What a find! On offer is a working example of what was a wonder of the age, a six digit decade counter/timer implemented entirely with vacuum tubes! The tubes are the legendary Philips E1T tubes, you can see how they indicate the time in the last photo. The count can be made to reset, count, stop by pressing the appropriate front panel buttons. The timebase was crystal controlled, and one E1T tube is used internally as a prescaler, so the instrument actual contains seven tubes.
I think that this instrument was used in some sort of nuclear physics instrument, and the counter has some multiway sockets on the back with short cables clearly intended to attach to something, but what it was I have no idea.
Power required is 220/240V. Cosmetically the front panel is in nice shape, a few marks but no ugly scratches. There is a clear plastic screen over the tube faces that is not original, but is is easily removed. The top and bottom panels of the chassis are missing. There is no power cord, I make it work with a "death lead", a power cord terminated with croc clips. Everyone should have one!
I will ship worldwide, but be advised that the shipping weight is about 20 Kg, and I shall send the E1T tubes seperately, extremely well packed in plastic pipe, to make sure that they arrive unscathed.
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Up for auction is a working NASA Nixie Tube Clock Time Counter Display with 8 Burroughs model B-5441 nixie tubes. Check out the pics this time code counter is still working good. It was owned and used by NASA and it was made by IRA systems and it says Reversible Time Clock model 748 on the front. We've also taken pics of the inside to show that it's in great condition. This is a 19 inch rackmount version. The only problem is the cord was cut but we rigged it back up with tape. You might want to re-solder a new cord. If you don't know how to solder we will do it for you for an extra $20 charge. This item was acquired from a NASA museum. Check out the pics!
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VINTAGE ANADEX CF-300 TIME INTERVAL COUNTER NIXIE TUBE
Up for bid is an ANADEX CF-300 INTERVAL TIMER with NIXIE TUBES.
All of the tubes display the digits, although a few digits are partially missing, but still readable.
The unit is rack mountable and has some usage marks.
I was able to let the timer run, but was not able to test input ports. It comes with external stop switch.
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$375 Buy It Now
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BECKMAN 7360AR
This is the same model used in Apollo Mission 1967 according to the only info I could find online at the link below
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19700076091_1970076091.pdf
This particular unit came out of Sandia Labs DRMO late 1980's to a collector then to me in 2004.
Missing a few tubes and top cover (not sure if it had one?)
Includes the decimal counters and over 25 5963 tubes
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