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ms660 · 9th Dec 2018, 3:50 pm

This receiver gives me the feeling that it might have been got at, the mystery wires might have gone to the HT reservoir and filter electrolytics, so far as I can make out from the Trader sheet data that tag strip in your photo is a connecting point for the HT choke to the rest of the circuit, the tag the yellow is connected to I'm guessing is the feed from the rectifier, the tag that the red is connected to being the fully filtered output, one of the wires from the audio output transformer would be connected to the tag the red wire is connected to and the other wire from the audio output transformer would be connected to the anode of the audio output valve via the 100 ohm anode stopper resistor.

Lawrence.

9th Dec 2018, 3:50 pm	#8
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: Roberts M5A mystery wires? This receiver gives me the feeling that it might have been got at, the mystery wires might have gone to the HT reservoir and filter electrolytics, so far as I can make out from the Trader sheet data that tag strip in your photo is a connecting point for the HT choke to the rest of the circuit, the tag the yellow is connected to I'm guessing is the feed from the rectifier, the tag that the red is connected to being the fully filtered output, one of the wires from the audio output transformer would be connected to the tag the red wire is connected to and the other wire from the audio output transformer would be connected to the anode of the audio output valve via the 100 ohm anode stopper resistor. Lawrence.