Hi  Looking for comment advice assistance for my Senior Citizens SWL/Scanner/DXing Club STEAMPUNK/RETRO MODERN Projects.  (Objet d'art/Plural Objets d'art)    
STEAMPUNK Radios/Receivers: TRF, & Regenerative   
 Retrofit/Restore 
The basic idea is to give the user the "feel " of 1920's multiple Tuning Controls with modern stable electronics
A) To Retrofit/Restore, Antique/Vintage TRF & Regenerative Receivers (see list below) to use a low, safe, single, voltage power supply, ie. a 12-volt wall wart.   
For Antique/Vintage Radios the plan is to remove all high voltage Triodes and use the RF Tuning Components with RF Modules/PC Boards mounted on dead tube bases. Minimal disruption to original circuitry so as to be able to reverse changes to allow a conventional restoration.  
The need for assistance is coming up with designs/schematics For the RF Stages We plan to use  transistor/semiconductor PC Board/Modules  for the Audio