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PJL · 25th Jan 2012, 12:06 am

Wahooo!!!! You must be pleased to hear something from it.

The circuit is a bit different from the AC34 and the oscillator anode feed is on a tag strip by the tuning flywheel connected by red wires. It looks like blue grey red? Can you check it's value.

Can you tune to a station and flick the wavechange a bit to see if it improves or changes.

Can you measure the voltages on the UF41 (IF) that is furthest from the wavechage switch so we can see what changes the swap has made.

I see there are still a couple of wax capacitors around that may need to be changed.

It's also worth cleaning valve pins and sockets with Servisol. Don't get it on the print as it will wipe right off.

Lastly, you might want to try chaging the UF41's out with the original ones from the set.

25th Jan 2012, 12:06 am	#161
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Re: Bush AC34, no sound. Wahooo!!!! You must be pleased to hear something from it. The circuit is a bit different from the AC34 and the oscillator anode feed is on a tag strip by the tuning flywheel connected by red wires. It looks like blue grey red? Can you check it's value. Can you tune to a station and flick the wavechange a bit to see if it improves or changes. Can you measure the voltages on the UF41 (IF) that is furthest from the wavechage switch so we can see what changes the swap has made. I see there are still a couple of wax capacitors around that may need to be changed. It's also worth cleaning valve pins and sockets with Servisol. Don't get it on the print as it will wipe right off. Lastly, you might want to try chaging the UF41's out with the original ones from the set.