Satoshi Maezumi (Paisen RC) talk about details of TRF Takayuki Kono's machine that ran at the last event of Tamiya Championship 2019 - TamiyaBlog
Interrock Nation: Radio Shack's Superadio clone -- the OPTIMUS 12-603
File:Vintage RCA Radiola 18 AC AR-936 Wood Radio, TRF Without Reaction (Non Regenerative), AM Band Only, Requires External Speaker, 7 Tubes, Made In USA, Circa 1928 (25329692606).jpg - Wikimedia Commons
File:Vintage Fuji Denki Two-Band (AM-FM) 12-Transistor Radio, Model TRF 1200F, Made in Japan (8489225630).jpg - Wikimedia Commons
Explorer™ AM: TRF AM radio receiver (solder kit) - black case - GR-152-BK | heathkit.com
TRF Drone Service
Tuned radio frequency receiver - Wikipedia
TRF Talk Radio
File:TRF Component Layout.jpg - Wikipedia
Restoring The Freshman Masterpiece TRF Radio | Jim Kerkhoff
TRF Talk Radio, listen live
Guest Post: Remembering the Radio Shack TRFs | The SWLing Post
About Us | TRF Radio
Restoring The Freshman Masterpiece TRF Radio | Jim Kerkhoff
KTRF-AM 1230 - Apps on Google Play
Guest Post: Remembering the Radio Shack TRFs | The SWLing Post
Interrock Nation: Fixing a Realistic TRF radio's scratchy volume control the easy way
TRF Talk Radio
1925 Magnavox Type D TRF Radio Video #11 - Finale (Not Quite) - YouTube