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Old 12th Feb 2024, 12:39 pm   #1
ScottishColin
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Default Non-black IC sockets.

Does anyone have a source for (non-ridiculously expensive) non-black IC sockets?

I've seen white sockets inside my PET and a red socket that someone had previously used to replace a failed chip in one of my disk drives.

I was thinking it might be good/nice in future to mark any work I do with different colour sockets so people can see the old and new differentiated (a bit like building an extension on an old house), but I have only ever seen black sockets available.

Thanks.

Colin.
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Old 12th Feb 2024, 12:47 pm   #2
G6Tanuki
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Default Re: Non-black sockets

RS used to do grey ones, though they were the cheaper spring-leaf type and not the nice turned pin ones I preferred.
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Old 12th Feb 2024, 12:54 pm   #3
SiriusHardware
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Default Re: Non-black IC sockets.

Try looking for 'Cambion' IC sockets which were often made in red. This seems a departure from your usual practice of trying to keep things looking original, though?
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Old 12th Feb 2024, 12:59 pm   #4
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Default Re: Non-black IC sockets.

This supplier:

https://richelectronics.co.uk/

...seems to have a lot of NOS sockets including Cambion red and Cambion Blue, as well as Midland Ross in Blue.
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Old 12th Feb 2024, 1:14 pm   #5
ScottishColin
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Default Re: Non-black IC sockets.

This is true - but I have to replace white sockets with black anyway on my latest PETs, and Commodore in their wisdom used black sockets for non-65xx and ROM devices, so my work and the original work kind of merged.

Thanks for the link to Rich electronics. I'll take a look there,

Colin.

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Try looking for 'Cambion' IC sockets which were often made in red. This seems a departure from your usual practice of trying to keep things looking original, though?
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Old 12th Feb 2024, 2:33 pm   #6
barrymagrec
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Default Re: Non-black IC sockets.

I have quite a few turned pin 16 way dil Harwin sockets in a fetching green.....
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Old 12th Feb 2024, 5:14 pm   #7
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Default Re: Non-black IC sockets.

As a 3d printer expert you might print a plastic frame for different socket sizes and then press turned pin socket pins into the printed frame. You can get the turned pin sockets as individual pins or cut the plastic on socket strips to remove the pins. This could give you a source for orange ic sockets. Probably not so easy for the folded contact type, but turned pin type shouldn’t be too difficult. Cost would depend on how you value your time.
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Old 12th Feb 2024, 5:47 pm   #8
SiriusHardware
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Default Re: Non-black IC sockets.

Isn't the plastic used in 3D printing rather easy to melt, though? Would it withstand the heat of soldering? I've suggested this before, but to be honest I thought I was joking.
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Old 12th Feb 2024, 7:50 pm   #9
ScottishColin
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Default Re: Non-black IC sockets.

The 'best' filament that I have experience with the highest temperature is ABS which has a melting point just over 100 degrees.

I have an SLA printer well which I believe will sustain higher temperatures.

I may experiment though to see what happens in reality.

Colin.
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Old 12th Feb 2024, 8:09 pm   #10
ScottishColin
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Default Re: Non-black IC sockets.

https://www.thingiverse.com/thing:2104621

Colin.
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Old 12th Feb 2024, 9:27 pm   #11
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Default Re: Non-black IC sockets.

It might be worth a try. The temperature the plastic needs to withstand would be less than the soldering temperature due to temperature gradient across the pin, the pcb would shunt some of this and the soldering time should be quite short. The plastic on the commercial sockets doesn’t withstand the soldering iron temperature for long if applied directly to the pin or the plastic.
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Old 15th Feb 2024, 4:13 pm   #12
ScottishColin
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Default Re: Non-black IC sockets.

OK. Work in progress. Ignore the horrible colour and the tatty edges - it's the principle right now.

I need to test the temperature resistance when soldering.

I have some Read and White resin which I'll try next.

Then I think I'll knock up some dual leaf sockets rather than the turned pin ones.

Colin.
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Old 15th Feb 2024, 6:27 pm   #13
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Default Re: Non-black IC sockets.

Is the pitch of the printed socket ok? Maybe just the photo but the pins seem to be slightly wider space than the folder contact socket.
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Old 15th Feb 2024, 6:34 pm   #14
ScottishColin
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Default Re: Non-black IC sockets.

What I need is a PCB with all the right holes in it(I'm sure there are better words than this) for me to measure and practice on.

Does such a thing happen to exist do you know?

Colin.

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Is the pitch of the printed socket ok? Maybe just the photo but the pins seem to be slightly wider space than the folder contact socket.
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Old 15th Feb 2024, 6:35 pm   #15
ScottishColin
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Default Re: Non-black IC sockets.

Alternatively are there set standards for socket sizes? Thereuat be bit I can't find them

Colin.
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Old 15th Feb 2024, 10:18 pm   #16
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Default Re: Non-black IC sockets.

You could try protoboards, most common type is 2.54mm pitch with 1mm diameter holes. The hole diameter might be a bit too forgiving of alignment to pins of the socket. You can also get 1.27mm pitch with 0.6mm holes and these are a very close fit to turned pin sockets, so would be a better test of the printed sockets.
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Old 16th Feb 2024, 11:09 am   #17
ScottishColin
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Default Re: Non-black IC sockets.

Thanks - bought a couple to experiment with.

There must be a standards document for the dimensions somewhere otherwise we wouldn't see everyone making them to the same dimensions.

I'll keep hunting.

Colin.

Quote:
Originally Posted by Mark1960 View Post
You could try protoboards, most common type is 2.54mm pitch with 1mm diameter holes. The hole diameter might be a bit too forgiving of alignment to pins of the socket. You can also get 1.27mm pitch with 0.6mm holes and these are a very close fit to turned pin sockets, so would be a better test of the printed sockets.
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Old 16th Feb 2024, 11:37 am   #18
ScottishColin
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Default Re: Non-black IC sockets.

I have found and downloaded JEDEC standard MS011-B which I think gives me what I need.

Colin.
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Old 16th Feb 2024, 12:48 pm   #19
SiriusHardware
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Default Re: Non-black IC sockets.

The common 2.54mm pin spacing on IC sockets was more commonly known at one time as 0.1" (0.1 inch) and 2.54mm is likely to be the closest 'decimalised' version of that dimension without resorting to an absurd number of decimal places - so it could be argued that it would be better to use the original imperial pin spacing of exactly 0.1" if your design software will let you do that, since the 2.54mm value is an approximation to not many decimal places.

A fraction of one-hundredth of a mm is quite a small 'error' but when multiplied by the number of inter-pin gaps down one whole side of an IC socket, the distance between the two outer end receptacles could end up slightly smaller or greater than expected.
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Old 16th Feb 2024, 2:42 pm   #20
m0cemdave
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Default Re: Non-black IC sockets.

2.54mm is exactly 0.1 inches, (by definition, 1" = 25.4mm)
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