Search found 12 matches

by Audio1Man
Thu Feb 07, 2019 8:16 pm
Forum: Test, Measurement and Repair
Topic: HP400F Meter Wet Slug Tantalum Capacitor Reforming
Replies: 21
Views: 3636

Re: HP400F Meter Wet Slug Tantalum Capacitor Reforming

My old 400FL has had 2 mods I added many years ago, and it is a great tool. First I added a unity buffer to the Range Switch Output (before the meter circuit) to a BNC to be a full range linear output signal. This signal connects to the scope or spectrum analyzer. This mod removed the distortion fro...
by Audio1Man
Tue Feb 05, 2019 7:16 pm
Forum: Test, Measurement and Repair
Topic: Welcome to the Test, Measurement and Repair Forum
Replies: 11
Views: 2535

Re: Welcome to the Test, Measurement and Repair Forum

Hi All
I worked for Audio Precision for many years as and Analog Engineer, now semi-retired. I service /older AP’s and have been to answer some questions. I have a web “sound-logic-la.com”.
Duke