Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!swrinde!elroy.jpl.nasa.gov!ncar!csn!cherokee!ken From: ken@cherokee.uswest.com (Kenny Chaffin) Newsgroups: sci.electronics Subject: Re: WANTED: A crystal AM HF recvr, and "one antenna -> 2 recvrs" Message-ID: <1991Jun3.190506.9747@cherokee.uswest.com> Date: 3 Jun 91 19:05:06 GMT References: <3827@ksr.com> Sender: news@cherokee.uswest.com (Telegraph Row) Organization: US WEST Advanced Technologies, CO, USA Lines: 37 Nntp-Posting-Host: dakota.uswest.com In article <3827@ksr.com> jfw@ksr.com (John F. Woods) writes: >mrapple@quack.sac.ca.us (Nick Sayer) writes: >>I am using a Sony ICF-2010 and a homebrew modem to receive and decode >>CHU. It's a bit of a waste to use such a fine radio for something >>so simple. So... >>1. Is there a cookbook circuit for a crystal controlled single >>conversion superhet? It'd be nice if it were frequency switchable >>in a simple way. Even better if it were TTL frequency switchable. > >I don't think I've seen a "cookbook" circuit for this, but just about any >simple single-conversion circuit should be easily converted by changing the >VFO to a crystal oscillator at the appropriate frequency. Sometime ago >(Feb 89? Feb 90? I'll try to look it up) Doug Demaw had an article in QST Good stuf about building a chu to am transistor radio converter deleted Or on the other hand you might simply order a SW receiver kit from Ramsey electronics. I don't remember the price right off the top of my head, but it's probably less than $30. The parts etc to build the converter and the AM radio might cost that much. Of course if you're really into building it yourself then by all means go ahead--sounds like a fun project. KAC WB0E "One man's ceiling is another man's floor." Paul Simon >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Kenny A. Chaffin {...boulder}!uswat!ken U S WEST Advanced Technologies (303) 541-6355 4001 Discovery Drive Suite 2100 Boulder, CO 80303 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<