Hi Chuck et al,
The good ole' 2N2222A just saved me lots of work here at work!
Had a counter line that was held HI, (5vdc), and would count
each time it was pulled low.
I have a device that I have to count that puts a 5vdc sig, (TTL),
each event.
Now we all know that we can't see a 5 volt sig on a 5 volt line,
but I used a little 2N2222A, in it's little metal can, put a 1K
resistor in the base lead and bingo.....I now pull that one line
low when the other goes high and it all mounts on the back of the
DB25!
Yessiree, just grabbed one of them thare critters outta the bag
and was home free!
Without a well stocked junk box a fellow just can't do anything,
even at work!
cul,
73, Ron, SOWP 5545M,
..........KU7Y.....ARCI #8829.....Monte "Ron" Stark.....
.....ku7y@sage.dri.edu...........Washoe Lake, Nevada....
.....QRP-L #17...ARS #49...NorCal #330.....NRA LIFE.....
[
QRP-L Archive |
]
[
1993 |
1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000
]