Showing posts with label Mixers. Show all posts
Showing posts with label Mixers. Show all posts
Monday, April 7, 2025

Asianometry on MOSFETs, MESFETS, CMOS and Moore

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Asianometry does a pretty good job here.  I am sure people will quibble about some of his descriptions of radio, AF, and RF.  But overall, p...
5 comments:
Thursday, January 30, 2025

Diode Ring VFO Part II: How Much LO into a Diode Ring?

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Last week we were trying to determine how much LO injection we really need in the SolderSmoke Direct-Conversion receiver .  The answer seeme...
2 comments:
Sunday, January 26, 2025

SolderSmoke Direct Conversion Challenge The Mixer and Diplexer

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SolderSmoke Challenge – Direct Conversion Receiver – the Mixer   The mixer is the heart of the direct conversion receiver.  It’s the circuit...
3 comments:
Monday, March 11, 2024

Radio Items Picked-up at VWS Winterfest 2024 Hamfest

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As always, click on image for a better view Above you can see what I picked up at the Vienna Wireless Society's 2024 Winterfest Hamfest....
4 comments:
Monday, October 16, 2023

Does Matching Matter? (Diode Matching for Diode Ring Mixers) -- Nick M0NTV Finds the Answer (Video)

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I n this video, Nick M0NTV takes on a hot topic in ham radio homebrewing:  The matching of diodes in diode ring mixers.   How should the mat...
6 comments:
Friday, June 23, 2023

Part III: Curious Marc Repairs an All-Discrete Freq Counter: DO NOT ATTEMPT REPAIR OF CAVITY RESONATOR

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I love all the "DO NOT ATTEMPT" warnings.  Wow, even HP got so skittish about this stuff.  Marc has a great sense of humor and not...