On Dec 3, 2010, at 12/3 6:12 AM, Ktfrog007@aol.com wrote:
> ?? I'm one of those in the dark about CK722. Enlighten me.
One of the first germanium PNP junction transistors that hams used.
http://www.ck722museum.com/
It was followed in later years by the equally ubiquitous 2N107.
Across the pond, the popular transistor among hobbyists was the OC71.
OC72 if you need a little more more power, and OC45 if you need a to
go into the "RF" (medium wave broadcast band was about as high they
could go up to :-).
73
Chen, W7AY
_______________________________________________
RTTY mailing list
RTTY@contesting.com
http://lists.contesting.com/mailman/listinfo/rtty
|