model 7 transistor


Made in Japan in the 1960s - MW radio -  7 Ge transistors, mix of several brands, made in USA and Japan -  supply by 1 special cell for 9V - nice small radio of good electronic quality, but the plastic case is of bad quality, unexpectedly for such a cheap radio sound and reception is very good - it has an OTL output stage - one should think this is a vertical radio but in fact it is a horizontal one: the ferrit rod is placed horizontally, see picture below.

Here the interior of this remarkable radio. On top you can see two of the seven transistors in TO-5 package, TI made, the ferrit rod is on the bottom. 

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14-01-2001©PE1MMK® Hans Hilberink Radiomuseum.