It doesn't even shunt across; it's just 16 pins in a DIL package "floating"? Strange. If it were a manufacturing test, one wouldn't expect it would show up in production machines?
Best, Sean On Thu, Aug 6, 2015 at 3:17 PM, geneb <ge...@deltasoft.com> wrote: > On Thu, 6 Aug 2015, Eric Smith wrote: > > On Thu, Aug 6, 2015 at 10:22 AM, tony duell <a...@p850ug1.demon.co.uk> >> wrote: >> >>> Amazingly there is nothing inside that 16pin DIL package. No silicon >>> chip, no thick-film resistor >>> network, nothing. It is just a package with the pins. >>> >> >> Are you sure? They might have gotten a really good deal on >> house-marked Signetics 25120 chips, with not all of the address lines >> bonded out. >> > > It could also be a chip used to test an auto-insertion machine or wave > solder machine. If memory serves, they'll use correctly pinned but "fake" > parts to test those processes before moving to the more expensive real > thing. > > g. > > -- > Proud owner of F-15C 80-0007 > http://www.f15sim.com - The only one of its kind. > http://www.diy-cockpits.org/coll - Go Collimated or Go Home. > Some people collect things for a hobby. Geeks collect hobbies. > > ScarletDME - The red hot Data Management Environment > A Multi-Value database for the masses, not the classes. > http://scarlet.deltasoft.com - Get it _today_! >
