In message <[EMAIL PROTECTED]>, "John Miles" writes: >Poul, if you need a set of them burned for you, drop me a line >off-list with your address... be glad to send you some.
Thanks for the offer, but I managed to wing it. >Note that the part number may cross to a 27C256, but I have had no luck >trying to use CMOS EPROMs in the HP 8566B/68B analyzers. Well here is a different data-point for you: I have a programmer but no UV-eraser so I had to be a bit creative. I have a handful of AMD 29F010 flash chips lying around. They are four times the size of the 27256, so I programmed them with four times the imagefiles and left the to surplus address lines floating. Yeah, I know, it's bad, but it's nothing compared to what follows: 29F010 are 32-pin chips and 27256 are 28 pin and the gap between the sockets are almost enough to make them fit. So I took my dremel and sanded the ends of the chips until they fit. Final bit of hackery is to solder the last 3 pins together so that -WE and VCC on the 29F010 gets in touch with VCC from the socket. http://phk.freebsd.dk/misc/8568b_flash.png Somebody at Agilent will cry if they see this :-) But it works, thanks a bundle for the help! Poul-Henning -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [EMAIL PROTECTED] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts