Correspondence from a friend of Bradford Howland, and words from Howland himself - The Howland Current Pump Circuit.pdf
On Wed, 25 Apr 2007 10:15:33 -0700, Jim Thompson
Gave us:
The opposite happened to me when I first went to Motorola... an old
fart told me that my harmonic mixer design couldn't possibly be
working ;-)
Try to buy an HF mixer these days that doesn't work that way... hehe
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