Quad 34 moving coil disc input module. - UK Vintage Radio Repair and Restoration Discussion Forum

Kentode · 19th Nov 2023, 8:25 pm

As per the title, I'm looking to change my current cartridge, a Goldring 1022 moving magnet, to a slightly more exotic moving coil (make and model to be confirmed).

I'd appreciate any help locating one of these, it's not so long ago that I saw loads of them on eBay but nothing now!

Your price paid.

Kentode · 20th Nov 2023, 7:17 am

On the (slim) chance that someone has one of these in their spare components box, this is what it looks like!

I think that the PCB is common to both the moving coil and moving magnet versions, so l MIGHT be able to repopulate the board of any module to suit the new cartridge; perhaps someone here has knowledge of this?

Radio Wrangler · 20th Nov 2023, 10:32 am

Plan B might be to acquire an external MC stage as a temporary or permanent measure. Some of the better designs use parallel arrays of transistors to get low noise matched to the very ow source impedances involved and wouldn't fit on that size board. so this could even be a better solution.

David

fetteler · 20th Nov 2023, 1:04 pm

There's a new listing for one on eBay!

https://www.ebay.co.uk/itm/225878714710

Steve.

19th Nov 2023, 8:25 pm	#1
Kentode Octode Join Date: Mar 2015 Location: Yorkshire, England. Posts: 1,269	Quad 34 moving coil disc input module. As per the title, I'm looking to change my current cartridge, a Goldring 1022 moving magnet, to a slightly more exotic moving coil (make and model to be confirmed). I'd appreciate any help locating one of these, it's not so long ago that I saw loads of them on eBay but nothing now! Your price paid. __________________ Regards, Ken. BVWS member Last edited by Kentode; 19th Nov 2023 at 8:31 pm. Reason: Added.

20th Nov 2023, 7:17 am	#2
Kentode Octode Join Date: Mar 2015 Location: Yorkshire, England. Posts: 1,269	Re: Quad 34 moving coil disc input module. On the (slim) chance that someone has one of these in their spare components box, this is what it looks like! I think that the PCB is common to both the moving coil and moving magnet versions, so l MIGHT be able to repopulate the board of any module to suit the new cartridge; perhaps someone here has knowledge of this? Attached Thumbnails __________________ Regards, Ken. BVWS member

20th Nov 2023, 10:32 am	#3
Radio Wrangler Moderator Join Date: Mar 2012 Location: Fife, Scotland, UK. Posts: 22,253	Re: Quad 34 moving coil disc input module. Plan B might be to acquire an external MC stage as a temporary or permanent measure. Some of the better designs use parallel arrays of transistors to get low noise matched to the very ow source impedances involved and wouldn't fit on that size board. so this could even be a better solution. David __________________ Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done

20th Nov 2023, 1:04 pm	#4
fetteler Octode Join Date: Jul 2011 Location: Staffordshire Moorlands, UK. Posts: 1,409	Re: Quad 34 moving coil disc input module. There's a new listing for one on eBay! https://www.ebay.co.uk/itm/225878714710 Steve. __________________ Those who lack imagination cannot imagine what is lacking... Last edited by Station X; 20th Nov 2023 at 1:44 pm. Reason: Link added.