Re: Roberts RMB Wavechange
The red arrows show the 4 poles of each three way switch bank.
With switch in position S1 this is for MW section.
(Bank 1 aerial pole) S1 switched to L1 (MW frame aerial) inner, S4 (bank 2 pole from C4 aerial tuner & C5) to other (outer) side L1 top & trimmer C1.
S7 (bank 3) (from C8 & C9 osc tuner) to S7 (L9 osc pri) S10 (bank 4) (L12 osc sec & second grid (osc anode) V1
Repeat for other two switch positions.
Black would be going to common of trimmers C1 C2 C3 and C13 C14 C15 (C12) in osc section.
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Geoff
Last edited by GeoffK; 23rd Aug 2019 at 3:32 pm.
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