Fidelity Ayr Radio help required please. - UK Vintage Radio Repair and Restoration Discussion Forum

NevilleT · 13th Jul 2021, 8:04 pm

Hi All,

I have an elderly Fidelity radio from, i'd guess, the early 60's.

The big issue I have is there are no battery connections and need some advice as to where the 9V should be connected. A pointer to a circuit diagram would be great.

I've attached some pictures to help.

Many thanks in advance.

60 oldjohn · 13th Jul 2021, 8:15 pm

Info here for £1.99 https://www.service-data.com/section.php/2915/1/ayr

Battery negative wire goes to the on off switch, bat positive goes to somewhere on the common ground plane one end of the volume control also goes to this plane (the OTHER end of the track goes to the diode) I would expect you would be able to see where the wires had been attached, possibly on the volume control track.

John.

ms660 · 13th Jul 2021, 8:31 pm

Looking at the component side in one of the photo's I would say that the battery -ve connects to the lower right hand switch tag on the rear of the volume control and that the battery +ve connects to the top tag of the volume control which I would say is connected to signal ground according to the copper tracks on the reverse side of the board.....Extra Info.....There might be a hole on the board next to that tag that will take the battery +ve connection through to the copper track side instead of soldering it to the tag itself.

Lawrence.

NevilleT · 13th Jul 2021, 8:54 pm

Many thanks both.

I've ordered the PDF and waiting on the download link.

I'll report back.

Paul_RK · 13th Jul 2021, 10:06 pm

Yes, looking at an Ayr here confirms what John and Lawrence have said. The black wire goes to the switch tag on the back of the volume control that's next to the one tag which still has a connection on your set: and the red wire to the uppermost (nearest to the driver transformer) of the three tags on the volume control itself.

Paul

13th Jul 2021, 8:04 pm	#1
NevilleT Triode Join Date: Mar 2021 Location: Southampton, Hampshire, UK. Posts: 10	Fidelity Ayr Radio help required please. Hi All, I have an elderly Fidelity radio from, i'd guess, the early 60's. The big issue I have is there are no battery connections and need some advice as to where the 9V should be connected. A pointer to a circuit diagram would be great. I've attached some pictures to help. Many thanks in advance. Attached Thumbnails

13th Jul 2021, 8:15 pm	#2
60 oldjohn Dekatron Join Date: Dec 2004 Location: East Yorkshire, UK. Posts: 3,985	Re: Fidelity Radio help required please Info here for £1.99 https://www.service-data.com/section.php/2915/1/ayr Battery negative wire goes to the on off switch, bat positive goes to somewhere on the common ground plane one end of the volume control also goes to this plane (the OTHER end of the track goes to the diode) I would expect you would be able to see where the wires had been attached, possibly on the volume control track. John. __________________ My favourite text message "I'll be there in five minutes, if not read again" Last edited by 60 oldjohn; 13th Jul 2021 at 8:32 pm.

13th Jul 2021, 8:31 pm	#3
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: Fidelity Ayr Radio help required please. Looking at the component side in one of the photo's I would say that the battery -ve connects to the lower right hand switch tag on the rear of the volume control and that the battery +ve connects to the top tag of the volume control which I would say is connected to signal ground according to the copper tracks on the reverse side of the board.....Extra Info.....There might be a hole on the board next to that tag that will take the battery +ve connection through to the copper track side instead of soldering it to the tag itself. Lawrence. Last edited by ms660; 13th Jul 2021 at 8:44 pm. Reason: extra info

13th Jul 2021, 8:54 pm	#4
NevilleT Triode Join Date: Mar 2021 Location: Southampton, Hampshire, UK. Posts: 10	Re: Fidelity Ayr Radio help required please. Many thanks both. I've ordered the PDF and waiting on the download link. I'll report back.

13th Jul 2021, 10:06 pm	#5
Paul_RK Dekatron Join Date: Nov 2003 Location: Fakenham, Norfolk, UK. Posts: 4,255	Re: Fidelity Ayr Radio help required please. Yes, looking at an Ayr here confirms what John and Lawrence have said. The black wire goes to the switch tag on the back of the volume control that's next to the one tag which still has a connection on your set: and the red wire to the uppermost (nearest to the driver transformer) of the three tags on the volume control itself. Paul