A
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Suppose you're designing an AM-FM radio just for fun and the old way,
ie no specialized integrated circuits; how would you substitute the old
455/460 KHz and 10.7 MHz IF transformers that are getting hard to find?
Hand wound toroids plus capacitive trimmers? Untuned stages w/crystal
filters?
ie no specialized integrated circuits; how would you substitute the old
455/460 KHz and 10.7 MHz IF transformers that are getting hard to find?
Hand wound toroids plus capacitive trimmers? Untuned stages w/crystal
filters?