Matt Bonner wrote:
> No different than my 16C63-JW.  Maybe the 509s are just 63s with the
> ends chopped off?  ;-)

While staring at a programmer PCB that copes with 509s and 84s, it
occurred to me that the pinout of a 509 is remarkably similar to the 84,
but inverted.  I had a momentary thought that the chip was simply
mounted upside down.  But I laughed at myself quite quickly.

--
James Cameron                                      (cameron@stl.dec.com)

OpenVMS, Linux, Firewalls, Software Engineering, CGI, HTTP, X, C, FORTH,
COBOL, BASIC, DCL, csh, bash, ksh, sh, Electronics, Microcontrollers,
Disability Engineering, Netrek, Bicycles, Pedant, Farming, Home Control,
Remote Area Power, Greek Scholar, Tenor Vocalist, Church Sound, Husband.

"Specialisation is for insects." -- Robert Heinlein.