T7610
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The Tektronix T7610 (P/N 154-0784-00, 154-0784-01) is a coding tube, i.e. a CRT with electronic output.
It was developed for the 7612D 80 MHz digitizer which had a nominal sampling rate of 200 MS/s.
According to the "Special CRTs" paper linked below,
- The equivalent maximum fullscale sine wave at the input [...] is 15 MHz for 8 bit, 20 MHz for 7 bit, and 60 MHz for 6-bit resolution.
- The 3 dB point in the rolloff due to [beam] transit time occurs at 450 MHz. At 100 MHz, deflection sensitivity has decreased by 2.1 %.
Links
- T7610 Electron Beam Analog to Digital Converter @ VintageTEK
- T7610, ENOB, and IEEE by Dan Knierim @ VintageTEK
- Special CRTs: 7612D Electron Bombarded Semiconductor Tube for High-Speed Analog-Digital Conversion
- T7610 @ YouTube
Pictures
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The assembly of two coding CRTs 154-0784-00
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Coding CRT 154-0784-00 «negligee»
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