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 22:50, 5 September 2021

155-0064-00

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.

Used in