I trying to repair my function generator and having issues with a transistor replacement transistor is MJE371K. Of course cant find one of these, so I started checking for an
equivalent. However ever one I find is also out of production… can anyone help
equivalent. However ever one I find is also out of production… can anyone help
4A PNP 40V, 40W
This seems to be ok. Motorola M9807 pinout may be different.
https://www.ebay.com/p/1183556205
This seems to be ok. Motorola M9807 pinout may be different.
https://www.ebay.com/p/1183556205
It appears the pinouts are the same, ECB.
You may want to see this as well.
https://www.eevblog.com/forum/testgear/hp-3314a-function-generator-teardown-explanation/
You may want to see this as well.
https://www.eevblog.com/forum/testgear/hp-3314a-function-generator-teardown-explanation/
Ok i replaced the transistor and hv good power supply rails. When i plug in the display cable I get a count down then errors (to be expected as A2 not plugged in) I replaced the tantalums on the A2 board. Plugged in the cables for mode and generator. No display however when I unplug the cable labeled generator I get a display count down to errors. Anyone have any idea where I should look next…