UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

quantum · 20th Apr 2003, 6:56 pm

Norm,

Yes, coils occasionally can go o/c in any set - I have also come across this problem. The particular problem with the Cossor models is that an o/c in the SW osc coil primary will stop operation on all wavebands, because of the design of osc stage.

Ironically, the design of the SW osc coil appears more robust than the MW/LW osc coil, so theoretically should be less likely to fail due to humidity, contamination etc..

20th Apr 2003, 6:56 pm	#3
quantum Retired Dormant Member Join Date: Mar 2003 Location: Birmingham, West Midlands, UK. Posts: 785	Re: Cossor 500AC SW oscillator coil failure Norm, Yes, coils occasionally can go o/c in any set - I have also come across this problem. The particular problem with the Cossor models is that an o/c in the SW osc coil primary will stop operation on all wavebands, because of the design of osc stage. Ironically, the design of the SW osc coil appears more robust than the MW/LW osc coil, so theoretically should be less likely to fail due to humidity, contamination etc..