DISCLAIMER This is just my opinion. What the hell do I know about anything? :) +++++++++++++++++++++++++++++++++++++++++++++++++ My 'fear' of sockets can be directly traced to the ill-fated Apple III. This was the machine right before the Lisa. The Apple III used TONs of TTL/memory chips. Like over 250. Somebody decided to socket the whole motherboard. Well, if you are the Project Manager, and Jobs is dropping 50 ton weights on your head about costs, where you gonna look first. Those 250 sockets! So, at that time you hade 2 players: Augat and AMP. Augat was in the high-end screw-machine sockets. AMP had a patent on the 'leaf cantilever' (sp?) contact, that looks like a V. These sockets were OK (Tandy used them), but they were about 1 cent per pin. Figure 250 x 14 pins = $35-$45 in sockets. Now, AMP then comes along with the 'Value Engineered Single-Point Contact' socket. This contact looks like an upside down 'J'. The good news: it's 50% cheaper! So, Apple ships 100's of Apple IIIs. Guess what? 100% (yep, every ONE!) arrives D.O.A. because the chips literally flew out of the sockets! Not just 1 or 2, but like 50 to 100! It damn near cause Apple to die, but the Apple IIe was still a big seller. Now, my good sense tells me that it makes no sense to spend $1 for a good screw machine socket and stick a 25 cent LM324 in there. It doesn't make sense to put a LM324 or any OTHER chip in a socket unless: a) it a EPROM, PAL, other other programmable part b) it's a rare, $$$ chip (like the CEM3330 in the MOTM-110) AMP's dual-beam sockets are what Serge uses. I think that's not being useful. Why socket a CA3080? I guarantee that the socket + CA3080 will fail before the CA3080 by itself does. And, it it doesn't, unsoldering is not that big a deal. In all of the MOTM modules shipped, I have see 1 truely 'bad' chip (a LM319). And, it was probably 'bad' when I got it. There are over 15,000 ICs out there in MOTM modules. 1 in 15,000 doesn't warrant sockets. 10 years from now, YOU WON'T BE ABLE TO GET DIP ICs ANYWAY so it's sort of the point of diminishing returns. Paul S. Mr. Anti-Socket and Anti-LED
Message
My socket view
2001-03-09 by Paul Schreiber
Attachments
- No local attachments were found for this message.