Disassembly and Repair of the HP 82059B 41C Power Supply

[akpoff]

Since the power supply is still open it occurred to me that I could measure the transformer for future reference. Below are dimensions for both core and bobbin.

The calipers are accurate to 1/1000", which seems like overkill, but the core fits in the bracket rather snuggly. The bobbin has a bit more space around it, but not much. I'd round down to hundredths for core measurements if you must. If you cut the bracket out you'd pickup a bit of space at the expense of having to glue the transformer in place.

I converted inches to metric using the standard conversion value of 1" = 2.54 cm.

Core:
Length: 1.406" = 3.57 cm
Width: 0.529" = 1.34 cm
Height: 1.148" = 2.92 cm

Bobbin:
Length: 0.987" = 2.51 cm
Width: 1.135" = 2.88 cm
Height: 0.744" = 1.89 cm

I edited the first post to add a photo of the top half so you can see the plastic posts that protect the plug blades and cable.

Cheers,

--Aaron