Hello, I'm trying to build a power supply for a TRS-80 Model 1 computer. I'm a novice in electronics so I'm using the schematics I found on a TRS-80 website. I'm confused about the output DC voltage the schematics show compared to what I'm actually getting.
The schematics show that with a 25.2V CT @2.0A transformer and a full wave rectifier I should be getting 18.5 VDC across pins 2 and 4.
What I'm actually getting is around 12.6 VDC. I'm using the exact same components listed on the parts list.
Please help me understand why I'm not getting the 18.5VDC. Maybe the schematics are wrong?
Thanks!
The schematics show that with a 25.2V CT @2.0A transformer and a full wave rectifier I should be getting 18.5 VDC across pins 2 and 4.
What I'm actually getting is around 12.6 VDC. I'm using the exact same components listed on the parts list.
Please help me understand why I'm not getting the 18.5VDC. Maybe the schematics are wrong?
Thanks!
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