single transistor projects?

[James T. Hawes]

Rufus Turner wrote a fabulous book on single-transistor projects. I reviewed
the book for Amazon. See...
http://www.amazon.com/125-One-Transistor-Projects-Rufus-Turner/dp/0830695370

You have to be careful with early transistor projects. Most of the
transistors are germanium. After
making circuit changes, you can build these circuits with modern, silicon
parts. At minimum, the
silicon transistors require changes to the bias circuits. (Sometimes, you'll
need to make other changes,
too.) For help with the changes, refer to my page at...
http://www.hawestv.com/transistorize/germanium1.htm

Equivalents to some early semiconductor types are unavailable today. (Or
available only as used, or
new-old stock parts). Such semiconductors include tunnel diodes, unijunction
transistors and most
early FETs. Redesigning circuits with these parts could be rather difficult.

James T. Hawes