Reference 1987.0487.228 Texas Instruments Collection Reference Material

Silicon grown Junction Transistor 1954

-- copy of Engineering Log Book Pages of TI's Mort Jones --

log book page 46 (77K) log book page 47 (75K) log book page 48 (67K)
log book page 49 (56K) x-ray 1 of 3 (33K) x-ray 2 of 3 (50K)
x-ray 3 of 3 (26K)
"...On April 14, 1954 bars were cut from a silicon N-P-N grown junction crystal number A-130, grown the previous day. ..."

National Museum of American History

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