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Old 23rd Aug 2019, 10:00 am   #1
G0HFCFrank
Pentode
 
Join Date: Oct 2011
Location: Oldham, Greater Manchester, UK.
Posts: 167
Default Roberts RMB Wavechange

Hi Folks,
The previous opponent of this Roberts RMB removed all the wires from the wave change switch and created the rats nest pictured. Looking at the circuit, the MW aerial coil L1 is the frame aerial and has four wires, black red yellow and green. I assume these correspond to connectors a b c & f on the diagram. The black wire is connected to chassis, yellow to C34 (tuning cap) and red and green jointed together and connected to the MW aerial trimmer C32.
I intend to repair or replace the 4 pole 3 way waveband switch and rewire back to original. Trouble is I don't know where the red green and yellow wires should go as I don't know which is which. If some kind soul with the same receiver could identify them for me I would be most grateful.

Frank C.
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