Posts Tagged ‘receiver’:

2024-04-10 FM Regenerative Receiver Using MPF102 JFET

A basic one transistor regen receiver uses an MPF102 JFET to give the regenerative gain.  Also uses two transistors to amplify the audio to drive an earphone.  How to Build an FM Radio Receiver

2024-02-04 Add Bluetooth To A Receiver

1 min. YouTube short

2023-10-19 Telephone Receiver Click Suppressor Varistor

I posted the photo of the back side of the receiver (earpiece) for a Bell System telephone (either 500 or 2500) set. I said that the green blob in my photo (and the ’44A’ metal can in the wikimedia photo below) was used for reducing the volume of loud signals. Well, that’s only slightly correct.

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2017-07-06 “Minimalist” Regen Receiver QRP-Gaijin

I was reading this blog, and I’m referring to this schematic. The author calls this regenerative receiver a “minimalist” design, but I refuse to consider a circuit with 7 transistors minimalist. If one thinks of the design as constrained to using a supply voltage of only 1.2 volts, a single AA or AAA rechargeable NiMH

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2013-02-25 Regenerative Receiver Design

I received a Google Alert about this regenerative receiver schematic being posted to the RegenRX Yahoo Group (you may have to be logged on the view it).  It’s quite complex for a regenerative receiver – the average regen set has just a few transistors.  But its Achilles Heel is the front end. When I was

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