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I was looking to purchase an old IPC 1028 preamp and add it to my system as a preamp. Problem I’m running into is that I cannot find a schematic for the life of me.

Here’s a link to one for sale on eBay if you want to take a look. Any idea on how I’d go about crafting a power supply for this?

Thanks in advance for any light you’re able to shed on this, I don’t imagine it would be terrible difficult but just don’t have the technical know-how to craft one myself without a schematic as guidance.