01-24-2014, 12:14 PM
Maybe that's why they have those large caps in there.. the power supply set up more like a modern AA5? I don't remember a choke in my Halson, just the resistor between the first and second filters. One of those filters, BTW, would be just for the speaker field coil.
As for checking the field coil, just follow the wires down to where they connect to the chassis. One would go to chassis ground (or ground buss), the other would go to one of the cathodes of the 25Z5.
As for checking the field coil, just follow the wires down to where they connect to the chassis. One would go to chassis ground (or ground buss), the other would go to one of the cathodes of the 25Z5.
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