leadpoisoning
Well-known member
- Joined
- Jan 29, 2016
- Messages
- 65
hi all - these seem to have lots of old 7400 CMOS chips in it - specifically SN74LS1 and LS2 series. I'm wondering if these are as failure prone and static sensitive as other CMOS chips of the period (like the 4000 series). I'm redoing all the soldering on many boards as it's all gone very nasty looking ... grey and krinkled and cracked. So i thought i might ask what the consensus was on 'maintenance replacement' ...