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   REPLYADDR not@telling.you.invalid   
   REPLYTO 3:770/3.0 UUCP   
   MSGID:  b91fbd63   
   REPLY: 3145:770/1.0 2315c2df   
   PID: SoupGate-Win32 v1.05   
   Daniel  wrote:   
   >   
   > I have yet to replace a chip on a board and so I ask this with respect to   
   best   
   > practices of the restoration community. Is socketing the chip a recommended   
   > thing to do?   
      
   The advantage is that if the chip fails it's easy to replace, the   
   disadvantage is that if the chip seems to have failed, the first   
   suspect is that it's just a poor contact in the socket. So easier   
   to fix but _possibly_ less reliable. More of a problem if the board   
   is likely to be bumped around a lot. You'll have to decide for   
   yourself what you prefer.   
      
   You might also consider installing heatsinks on some of the chips   
   seeing as you're doing everything else.   
      
   > On another note, I believe the rig linked below is meant solely for the   
   > original power supply. Would it be prudent to build a rig like this for any   
   > power supply? Or are the modern equivalents built with this sort of   
   protection   
   > in its design?   
   >   
   > https://console5.com/store/commodore-64-power-saver-circuit-kit.html   
      
   In theory the originals had protection built into their design, it   
   just tends to fail because they run too hot so the regulator chip   
   dies an early death. Poor quality capacitors can also fail early   
   and cause excessive supply ripple, more so if also overheated.   
      
   So if you're sure that the replacement power supply is well heat   
   sinked and uses high quality genuine components, it might be   
   over-kill to use a protection circuit. On the other hand if it's   
   something that someone's cobbled together from cheap Chinese   
   PSU modules bought off Ebay, then I'd suggest more caution.   
      
   My design also indicates ripple and low 5VDC or 9VAC voltage:   
   http://computernerdkev.heliohost.org/comiemon/comiemon.htm   
   http://computernerdkev.heliohost.org/comiemon/relay.htm   
      
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