Many thanks to SWLing Post contributor, Jesse (W9JES) who writes:
I’ve been busy enhancing my Radio Shack DX-390. I added an IF-Out jack for my SDR, changed out the light for a LED, added a latch circuit for the light switch, added static protection, and disabled auto-mute. My blog with full instructions is at www.w9jes.com
Thank you, Jesse! Here are links to the various modifications Jesse has documented:
While browsing eBay a few moments ago, I noticed this Sangean ATS-818 which has a BuyItNow price of $30.00 + $15.00 shipping. If this would have been the ATS-803A/DX-440, I would have snatched it up in an instant if only for nostalgic reasons. I know many people that cut their teeth on the ATS-818 or the RadioShack equivalent. The price seems fair, the unit is supposedly functional and the seller has stellar ratings.
If you’ve been looking for an ARTS-818, this might be a good time to pull the trigger.