I decided to build a BFO before I started in on a more complex device. Downloaded the .pdf from here ( http://tthn.com/geotech/metdet/bfo/edn.html ), and hit a snag right away.
The LM389 is a discontinued semi-conductor. No sub listed in the current ECG or SK cross references. Any ideas?
TIA,
Scott
The LM389 is a discontinued semi-conductor. No sub listed in the current ECG or SK cross references. Any ideas?
TIA,
Scott
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