Quad 33 edge connector - UK Vintage Radio Repair and Restoration Discussion Forum

reddish75 · 17th May 2021, 4:36 pm

Currently restoring a Quad 33 and have noticed that one of the pcb's is lose in its socket, these are the blue edge connector sockets not the earlier white ones that were adjustable. Any advise on tightening or replacing the socket? If not would something like building up solder on the traces be advisable?

Thanks

17th May 2021, 4:53 pm

If the board is single sided a few layers of Sellotape on the back may help.

snowman_al · 17th May 2021, 4:55 pm

Page 3 of the service manual. Just don't go too far...https://www.dadaelectronics.eu/uploa...ice-Manual.pdf

reddish75 · 18th May 2021, 4:12 pm

Quote:

Originally Posted by snowman_al

Page 3 of the service manual. Just don't go too far...https://www.dadaelectronics.eu/uploa...ice-Manual.pdf

I thought that was for the white sockets not the later blue/Black?

snowman_al · 18th May 2021, 4:52 pm

Sorry, I have not seen one for a long time, but I thought the only difference was the later ones were gold plated, but still loose their 'grip' over time and use?

I would not add a solder flow to the pads, that just pushes the fingers even further out. Armstrong 52x suffer the same issue and they are solder coated.
Merlin's tape on the rear might well be enough of a solution?

alanworland · 19th May 2021, 11:12 pm

I remember my 33 blue connectors were (are) a very loose fit to the board but keeping the board fingers clean and lightly 'servisoled' and they have never given a problem.

Alan

nutteronthebus · 20th May 2021, 9:39 am

I may have a spare motherboard with the sockets on . I will have a look and let you know

Dave

17th May 2021, 4:36 pm	#1
reddish75 Hexode Join Date: Nov 2010 Location: Manchester, UK. Posts: 251	Quad 33 edge connector Currently restoring a Quad 33 and have noticed that one of the pcb's is lose in its socket, these are the blue edge connector sockets not the earlier white ones that were adjustable. Any advise on tightening or replacing the socket? If not would something like building up solder on the traces be advisable? Thanks

17th May 2021, 4:53 pm	#2
Guest Guest Posts: n/a	Re: Quad 33 edge connector If the board is single sided a few layers of Sellotape on the back may help.

17th May 2021, 4:55 pm	#3
snowman_al Octode Join Date: Dec 2018 Location: Llandeilo, West Wales, UK. Posts: 1,092	Re: Quad 33 edge connector Page 3 of the service manual. Just don't go too far...https://www.dadaelectronics.eu/uploa...ice-Manual.pdf __________________ Never Leave Well Enough Alone...

18th May 2021, 4:52 pm	#5
snowman_al Octode Join Date: Dec 2018 Location: Llandeilo, West Wales, UK. Posts: 1,092	Re: Quad 33 edge connector Sorry, I have not seen one for a long time, but I thought the only difference was the later ones were gold plated, but still loose their 'grip' over time and use? I would not add a solder flow to the pads, that just pushes the fingers even further out. Armstrong 52x suffer the same issue and they are solder coated. Merlin's tape on the rear might well be enough of a solution? __________________ Never Leave Well Enough Alone...

19th May 2021, 11:12 pm	#6
alanworland Heptode Join Date: Feb 2011 Location: Southend, Essex, UK. Posts: 802	Re: Quad 33 edge connector I remember my 33 blue connectors were (are) a very loose fit to the board but keeping the board fingers clean and lightly 'servisoled' and they have never given a problem. Alan

20th May 2021, 9:39 am	#7
nutteronthebus Hexode Join Date: Jun 2011 Location: Glossop, Derbyshire, UK. Posts: 487	Re: Quad 33 edge connector I may have a spare motherboard with the sockets on . I will have a look and let you know Dave __________________ Any tool can be used as a hammer but a screwdriver makes the best chisel