[Hallicrafters] SX-62 Xformer Resistance Measurements

Joe Connor joeconnor53 at yahoo.com
Sun Oct 3 17:34:22 EDT 2010


OK, I ran resistance checks on the primary of the output xformer (w. leads disconnected but with the transformer installed on the chassis). I used a DMM. Here are the readings:

CT to Ground: 35 Ohms
Plate Lead 1 to Ground: 32 Ohms
Plate Lead 2 to Ground; 35K Ohms

Plate Lead 1 to CT: 42 Ohms
Plate Lead 2 to CT: 27K Ohms

Plate Lead 1 to Ground: 33 ohms
Plate Lead 2 to Ground: 46K ohms

Plate Lead 1 to Plate Lead 2: 53K ohms

Is the output xformer shorted interally or to the chassis? Do these readings explain the smoke from the output xformer and the cherry red plates on the 5U4?

As always, thank you for the help.


                          Joe Connor




      


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