Mystery homebrew TRF. Schematic? Valves? - UK Vintage Radio Repair and Restoration Discussion Forum

SolderSmoke · 2nd Aug 2014, 3:23 pm

I picked up this old UK homebrew receiver at the Kempton park rally a while back. I'm trying to gather more info about it. Any ideas on the schematic that the builder might have used? What type of valves? Time period?

I'm thinking 1920s, maybe early 30s. Triode (PM2) in the detector, maybe a 5pin pentode in the AF amp?

Pictures and more info here.

http://soldersmoke.blogspot.com/2011...ech-regen.html

Any help would be greatly appreciated.

73 Bill N2CQR ex M0HBR

2nd Aug 2014, 3:23 pm	#1
SolderSmoke Retired Dormant Member Join Date: Aug 2014 Location: Falls Church, Virginia, USA Posts: 5	Mystery homebrew TRF. Schematic? Valves? I picked up this old UK homebrew receiver at the Kempton park rally a while back. I'm trying to gather more info about it. Any ideas on the schematic that the builder might have used? What type of valves? Time period? I'm thinking 1920s, maybe early 30s. Triode (PM2) in the detector, maybe a 5pin pentode in the AF amp? Pictures and more info here. http://soldersmoke.blogspot.com/2011...ech-regen.html Any help would be greatly appreciated. 73 Bill N2CQR ex M0HBR