XL1201 Stability Update
In an effort to rule out the power supply causing the XL1201’s instability, I sent it out for overhaul by Power Clinic. After reinstalling it, I booted the XL1201 and just let it sit in the … »
Todd MAX-354-1252 Power Supply for XL1201
So, I learned something about the Todd MAX-354-1252 power supply in the Symbolics XL1201 today that I thought I’d share. Not that I understand it, mind you. The power supply has six trim pots. … »
Power Supply, Memory, Crashes
I don’t have the time to post all the details before going to sleep, but I did a few things tonight including measure the power supply voltages, install new RAM, and have a lot of problems and … »
XL1201 Power Consumption
I was asked how much power is used by the XL1201. Here are a few data points… XL1201 with only SCSI2SD: 222-233W Console: 106W With the XL1201 sitting idle it takes the same amount as … »