- Joined Apr 17, 2019
Can 2n3906 replace 2n4126?
I have a “Red Sox Radio” I built to pick up only a single station, the one that broadcasts Red Sox games, AM 1440. It has one tuned circuit made by the ferrite rod antenna plus a fixed capacitor and trimmer to fine adjust the tuning. The tank circuit is input to an MK414 AM radio chip, which has an untuned RF amp, AGC and detector. It works fine, discriminating the channel quite well in in area with plenty if AM stations.Today it would pickup maybe 10 or 20 AM radio stations at the same time because it has only a single LC tuned circuit.
Thanks for this one : https://www.qsl.net/va3iul/Homebrew_RF_Circuit_Design_Ideas/Homebrew_RF_Circuit_Design_Ideas.htm#RF Power Amplifiers
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by Jake Hertz