6 Oct
2001
6 Oct
'01
12:51 p.m.
Tony Duell skrev:
> If the traces are of the right pitch, you may just
cut away any superfluous
> traces from a veroboard. The common pitch is 2,5 mm, I think, but in some
Certainlty in the UK, the common pitch for stripboard
is 0.1". That's
sufficiently different from 2.5mm to be noticeable over a
reasonable-sized edge connector. We also have 0.15" pitch (which is very
hard to find now), which will not fit US 0.156" connectors...
I'm not familiar with that other measuring system...
The problem is that most stripboard is single-sided and
most edge
connectors are double sided. I have seen double-sided stripboard once,
I've even seen X-Y stripboard (tracks run horizontally on one side,
vertically on the other). But those types are not stocked by the local
electronics shop
To think that I didn't think of that!
Oh well, here's just something which happened to be in my browser at the
moment, on a related topic. It's about making an adapter for running Japanese
games on Western SEGA Master Systems, which involves a card-edge connector.
------8<--------
The Japanese connector is a 44-pin one of a very unusual pitch (0.125inch I
think), which is very difficult to get hold of. I did find one company which
manufactured them, but I'd have had to buy 1000 of them :-(
I made my adapter by cutting (hacksawing) a standard 50-way 0.1inch connector
into segments of six pins each, with four pins on each of the end segments,
kind of like this...
__ ___ ___ ___ ___ ___ ___ __
| | | | | | | | | | | | | | | |
|__| |___| |___| |___| |___| |___| |___| |__|
|| ||| ||| ||| ||| ||| ||| ||
Note the gaps in between each segment. One of the middle segments was
discarded (50-6=44) and the remaining ones separated and glued in position on
a standard SMS cartridge shell. Then the connector pins could simply be wired
to the corresponding points of the cartridge board (the ROM having been
removed). The whole process was very tedious, but the resulting adapter does
work (thankfully!)
-------8<--------
--
En ligne avec Thor 2.6a.
Allt ?r under kontroll, och caps lock ?r bredvid.