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ms660 · 26th Oct 2020, 1:29 pm

It could be that the antenna isn't being connected to the push button unit properly or the RF section of the push button unit isn't being properly connected to the control grid of the mixer (V1) when the wave change switch is set to the Selector position, check that the switch contacts for S5 and S17 are making good contact and that L28 is ok.

For the wire that's disconnected.....where in the circuit does the connected end connect to ?

All the above refs. are as per the Trader service sheet 399.

Lawrence.

26th Oct 2020, 1:29 pm	#10
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: McMichael 381 Valve Radio project It could be that the antenna isn't being connected to the push button unit properly or the RF section of the push button unit isn't being properly connected to the control grid of the mixer (V1) when the wave change switch is set to the Selector position, check that the switch contacts for S5 and S17 are making good contact and that L28 is ok. For the wire that's disconnected.....where in the circuit does the connected end connect to ? All the above refs. are as per the Trader service sheet 399. Lawrence.