[GreenKeys] Model 15/19 power supply 120VDC

Johannes Eggers johannes.eggers at gmail.com
Mon Mar 2 19:10:25 EST 2026


I'm building a 120VDC power supply for my frankensteined Model 15 / 19.
The plan is to take 3 transformers with 28V secondaries in series, gets me
84VAC, then a rectifier and maybe smoothing capacitor.  I'm not sure about
the VA rating for the transformers.  I calculated 7.2VA for the current
loop (60mA * 120V DC), but I'm not sure about the perforator.  Anyone have
numbers for that?  Also, am I missing something?

Thanks !

Johannes
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