This project originated due to the need for a good, indoor antenna for AM radio listening. Trying to operate a radio in the house using its built-in antenna is frustrating due to all the electrical noise. This mainly emanates from the switching power supplies that are in practically everything now. Seriously, they have taken over
The Yamaha CR-840 came out in 1979 or so, and priced at $500. It was a fairly good audio component at that time. I found one at a yard sale for $10, and could tell immediately it was worth purchasing if only to get parts and a nice power transformer. I ended up cleaning it
I have been interested in the “Class E” audio amps & have purchased a few over the years to evaluate. In recent years a company called Sure Electronics has been offering many power amp modules that are attractive because of the low prices and high performance. And the black boards look cool. Parts Express sells
I got a 1960’s era Astatic model 200-S microphone in a box of junk at a yard sale for $2 in the summer of 2012. This was the only thing I kept from the box. The mic was original, with the gray curley-cued cord and a weird connector on the end with a locking thread. It
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