Made in Taiwan - MW radio - 10 Hitachi Germanium transistors 1 diode - supply by 1X 9V cell - nicely built radio of good electronic quality, it has good sound and reception - it has a separate earphone compartiment inside the radio case right of the battery compartiment.
Made in Okinawa pocket MW radio, 12 Toshiba Germanium transistors, 1 is used as diode. case is made of metal front and plastic back. Plays nice.
model K504 Super Micro
Super micro radio with 8 micro transistors made by TEN Japan. The size of the transistors is the same as the Philips OC59A, only the shape is slightly different: the top of the TEN transistors is flat. The radio does not play at the moment although the LF stage produces significant hiss. Supply by 3 button cells of 1.5V for 4.5 V supply.
This radio was a present given to me by André Schmeets, he is an electronic engineer and has various electronic (patented) inventions on his name. André is well known in the electronic & recording studio world. He i.e. developed the professional digital mixing consoles for Philips. In another section of my website you can see transistor amplifier schematic designs by André.
ŠPE1MMK hans hilberink 2001/04-03-2003.