Iv'e had that SNES since 1994...21 years! . It holds a special place in my heart
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The PSU was on fleabay for £120 or BO.
I offered £100 and they accepted
/On topic.
Iv'e discovered that setting the PSU above 10v pleases the ZVS , I can then ramp the voltage. Just not go under 10v, or it becomes a current shunt.