50 years of building things from other peoples junk.
Ham for too long !(45 years)
Yes I have reground my own crystals. But these days I’d use a DDS chip. #AM#audio#timenuts
I never want to analyse another #LWM2M trace again!
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Joined 4 年前
Cake day: 2022年11月5日
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@einfach_orangensaft
How about a magnetic telephone pickup coil?
Not recommending this one in particular - just an example that wasn’t from amazon.
https://www.elliottelectronicsupply.com/telephone-pickup-coil-suction-cup.html
TBH I’m not sure if there’s enough magnetic leakage from the voice coil in a speaker for this to work.