Following up on our recent MFJ post, SWLing Post contributor, Ron, writes:
Another thing about MFJ is they still offer the MFJ-8100 as a kit or built. This is the only regenerative receiver available as far as I know.
Mr. Jue and his guys did a couple of tweaks like limiting band coverage to insure stability, using 1/8 inch 3.5mm stereo phone jacks and use an LM386 audio IC to drive headphones or speaker.
The whole thing is in a metal enclosure to minimize hand capacitance found in most regens.
The QRP crowd likes to use the 8100 with flea power CW rigs, it’s that good.
And it’s been in production far longer than the Heathkit GR-81 or any of the Knight Kit regens, too.
Thank you for sharing that, Ron! I had completely forgotten about this little kit when someone recently asked about the availability of Ten-Tec regen receiver kits (that are, sadly, no longer on the market to my knowledge)! I might have to grab one of these kits–looks like a fun one to build.
By the way, I also believe the NM0S Ozark Patrol regen kit is still available from the Four State QRP Group. Click here to check out the product page. It doesn’t have a metal enclosure like the MFJ, but it’s also a fun kit to build.