#RetroChallenge Side Quest

[Chris Savage]

So You Want To Program an AM2732 EPROM with Your TL866II+: the programming voltage Vpp is +24V and the TL866II+ can only do +18V tops. With a bench power supply, an LM339 comparator, and a 2N3904 NPN transistor, I got the Vpp boost I needed.

LINK TO ORIGINAL POST ON MASTODON

[JKnightandKARR]

Cool! Whatever works!

[Chris Savage]

Cool! Whatever works!

I thought @granz might appreciate this, since he now has the TL866 device programmer. 

[JKnightandKARR]

Good possability.

[granz]

I thought @granz might appreciate this, since he now has the TL866 device programmer. 

I did see it, it's in the back of my mind for when I start programming other devices. But at the moment, my first priority is to get one of my XP (or lower) systems working, install the software, and then just getting so that I can program devices. Still going slow, with other miscellaneous (read: non-electronics  ) stuff that needs to be done.