155-0064-00: Difference between revisions
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|Part_nos=155-0064-00 | |Part_nos=155-0064-00 | ||
|Description=vertical output amplifier | |Description=vertical output amplifier | ||
|Used_in= | |Used_in=7834;7854;7904;7903;7912AD;A34U745;485;PG502 | ||
|Designers= | |Designers= | ||
}} in a 12-pin TO-8 stud mounted can, developed by Tektronix in the early 1970s. | }} in a 12-pin TO-8 stud mounted can, developed by Tektronix in the early 1970s. | ||
Revision as of 21:50, 5 September 2021
The Tektronix H074A (P/N 155-0064-00) is a vertical output amplifier hybrid integrated circuit in a 12-pin TO-8 stud mounted can, developed by Tektronix in the early 1970s.
Maximum power dissipation is 4 watts. Rise time is specified as 470 ps (equiv. bandwidth 745 MHz).
The hybrid consists of three dice: the M080 differential amplifier ("ft doubler"), and two D078 NPN output transistors in common-base configuration.
It is the same as the 155-0065-00 (H074) except for the case and pin 3 to case breakdown.
According to Modification 050-1014-00, Vertical Output Microcircuit Replacement, the emitter resistors need to be selected according to a code printed on the device.
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Schematic and pinout
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Mechanical
