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Re: Help required finding a Tek 466 power rail short


 

I will agree with Roger and Harvey about the 1458 IC possibly being bad. They may have found the problem. The voltage James read make it look bad. I suspected this before the wrong voltage across the 3 ohm resistor was posted. The 1458 is (2) 741s in one IC. If James has or can get any, put in a new one to see what that does. I have used FET input ICs to test for a BJT type, both worked fine. I did put the original number back in.

Mark

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