UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Cossor 494AC. My first proper restoration

ChrisBU · 8th May 2009, 10:27 pm

I bought this as not working and I think I should have scrapped it. I didn't try it out before I started and just got stuck into it, changing the wax caps, filter caps and a cathode cap, replaced a resistor that was way out, new tuner drive cord, opened and lubed the pots. I cleaned up the cabinet and put it all back together. Finally it was time to switch on - nothing. I took it out again and found part of the output transformer primary was open circuit. I took one from a scrap set and put it in - still nothing just a faint hum from the speaker. When I came to check the audio output valve there was no cathode voltage. I had a spare 7C5 and tried that - still no cathode voltage. Would it be possible to change the socket and use a 6V6 here?

8th May 2009, 10:27 pm	#1
ChrisBU Retired Dormant Member Join Date: Apr 2009 Location: Fakenham Posts: 10	Cossor 494AC. My first proper restoration I bought this as not working and I think I should have scrapped it. I didn't try it out before I started and just got stuck into it, changing the wax caps, filter caps and a cathode cap, replaced a resistor that was way out, new tuner drive cord, opened and lubed the pots. I cleaned up the cabinet and put it all back together. Finally it was time to switch on - nothing. I took it out again and found part of the output transformer primary was open circuit. I took one from a scrap set and put it in - still nothing just a faint hum from the speaker. When I came to check the audio output valve there was no cathode voltage. I had a spare 7C5 and tried that - still no cathode voltage. Would it be possible to change the socket and use a 6V6 here?