HP 6181C – Kerry D. Wong

Powering Up an HP YIG Tuned Oscillator

October 16, 2020 By kwong

I was going through some of the components I accumulated over the years and stumbled upon a Hewlett Packard YIG tuned oscillator (part number 5086-7023) that I bought a while back. This YIG oscillator was made for a frequency extension…

HP 6181C DC Current Source Teardown

February 2, 2014 By kwong

HP 6181C is a lab grade 0 to 250 mA current source manufactured back in the late 70’s and early 80’s. There does not seem to be any pictures on the Internet for this particular model so I thought I…