Jan Soelberg 18460 C-MOS frequency counter kit 1980 test teardown

Описание: in Denmark Jan Soelberg (1946-1991) is famous for all his books, kits, and documentation writting in a fun and entertaining and educating way, I am sure he is the reason for many starting with electronics as hobby and later a line of work.
Here is a wiki page about Jan, the design list is far from compleete
https://da.wikipedia.org/wiki/Jan_Soe...
He also made kits for "Circuit Design" and Jostykit.
this kit is from a book dated 1980 called anvendt elektronik, see link:
https://www.ae80.dk/index.php/jostyki...
and here is the prescaler
https://www.ae80.dk/index.php/jostyki...
link to books and schematics and full documentation of kits:
https://www.ae80.dk/index.php/jostyki...
go down to AE80 bind 2 1980, see page 535 and 545
This video also show the repair of this unit and a test of its max frequency,
yes i was able to hit its official 160MHz,
the prescaler DS8629N is rated 120MHz how funny is that.

thanks to Robert for replica of the PCB that came with Jan Soelbergs book, shared here
https://github.com/RetroBertie/JanSoe...
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#jostykit
#teardown
#test
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I use auto generated subs, i am sorry there are a few spelling errors,
maybe one day they can do it better..
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