Burlingame, CA
Quoted from Aurich:Nah, it can just happen. My METLE had that too, definitely wasn't from cradling.
Can happen either way. But I blew left flipper transistor on ACDC and 2x on Transformers LE, both times from cradling.
(Topic ID: 134865)
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Quoted from Pin_Crazed:This is spot on, the transistors(22NE10L) are the problem, they are not strong enough to handle the load for an extended period of time. This is why you replace with the heavier transistor(IRL540N), which is all most pinball parts places carry. Here is the description from Terry's website:
This transistor (IRL540N) is a more durable replacement for the easily blown 22NE10L STP transistors located in positions Q1-Q16 on the I/O power driver board of all White Star System games.
Stern reference numbers 110-0106-00 & 20N10L STP.
http://www.pinballlife.com/index.php?p=product&id=190
Agreed. But believe it or not, I blew an IRL540N from cradling as well. I now pop heat sinks on them just to help out a bit.
Quoted from scottslash:False. If your coil burns out from cradling, then you have something *wrong* and need to repair it. No brainer. Chill.
Take a stern from the last 3-4 years, and cradle for 2-3 minutes, and see if you have something *wrong* as well.
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