Weltklang (Toestel of techniek)

door Rolf Zetterberg , 18-12-2025, 23:29 (8 uur en 40 minuten geleden) @ Frank80

It wasn't until I enhanced the picture of your radio,that I realized that this was a police radio!
So a schematic had to be found with this band and I found one-FM-AM-Air-Police 4Band 13 transistor radio 2445.It may not exactly fit your radio,but at least it gives you a general idea how they were built.

https://www.radiomuseum.org/r/realtone_j_fm_am_air_police_solid_state_2445_japan_604.html

I also looked at Craftsman 5 band 1969,Universum 10 transistor,Realtone 2287,Realtone 2424,Realtone 2437.
One of them has a crappy schematic.
And yes,Onkyo built a transistor radio 11PF-201!