UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

FrankB · 31st Dec 2021, 6:12 am

It was a very common practice (deceptive?) in the early days of transistor radios to use one transistor as a diode detector. Often the other junction was open.

I have a couple of "6" transistor radios in my stash that only use 5 transistors. The other one is isolated on the PC board. Yeah it "Has 6 transistors" , but only 5 are connected and working on these pocket radios. Deceptive advertising?
Very much in line with the Chinese kit radios that say "5 tube" and are really transistor radios.

31st Dec 2021, 6:12 am	#17
FrankB Heptode Join Date: Oct 2005 Location: Olympia, Washington, USA. Posts: 664	Re: 7 Transistor Kit Radio Output Problem It was a very common practice (deceptive?) in the early days of transistor radios to use one transistor as a diode detector. Often the other junction was open. I have a couple of "6" transistor radios in my stash that only use 5 transistors. The other one is isolated on the PC board. Yeah it "Has 6 transistors" , but only 5 are connected and working on these pocket radios. Deceptive advertising? Very much in line with the Chinese kit radios that say "5 tube" and are really transistor radios.