T77
Serious buyers only . THESE TUBES CONTAIN VERY STRONG MAGNETS
EVERYTHING IN GOOD WORKING CONDITION YOU GET THE ENTIRE PILE
RARE FIND . Genuine BX-1000 tubes = 17 tubes = 17 original sockets (Rare first addition beam tubes)
Large Lot of 34 pieces . You get everything in the photos for the Bid
Tubes are made with 3 mica's & Square [] Getters / Sockets are Bakelite Everything Vintage USA MADE
17 original tube sockets for these BX-1000 Tubes & you get all 17 tubes = 34 piece lot
Genuine Burroughs made in the USA . These tube sockets are worth more then the tubes themselves .
These switching tubes are also similar to 6712 & 6714 / BX-3000
Very hard to find a very large lot like this in this Excellent condition
first of 'Beam-X Switch' family from Burroughs. To reduce the size of the previous beam switch tubes, Burroughs moved the magnetic source inside the electrode structure; 10 small magnets were mounted into the tube, one for each counting position. The Beam-X family had no pin available for zero reset feature.
Glass envelope with 26 pin base, no magnetic shield. 2 MHz counting speed, 2.7mA target current.
Glass envelope with 26 pin base, no magnetic shield. 2 MHz counting speed, 2.7mA target current.
Beam-X Switch' family from Burroughs. To reduce the size of the previous beam switch tubes, Burroughs moved the magnetic source inside the electrode structure; 10 small magnets were mounted into the tube, one for each counting position. The Beam-X family had no pin available for zero reset feature.
Glass envelope with 26 pin base, no magnetic shield. 6712 is similar to 6710, with output current drive capability raised from 2.7 to 5 mA. 2 MHz coun
Glass envelope with 26 pin base, no magnetic shield. 6712 is similar to 6710, with output current drive capability raised from 2.7 to 5 mA. 2 MHz coun
