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Re: It's long overdue - Cosmac Elf II build
Posted: 24 Apr 2026 13:09
by rubber_jonnie
HigashiJun wrote: 24 Apr 2026 12:51
:(
Sorry to hear that.
Thanks, it's very annoying, though the seller has apologised and seems keen to sort it out, though these parts took 10 days to arrive so I hope they can send them faster this time.
HigashiJun wrote: 24 Apr 2026 12:51
And yes, EOL parts tend to become increasingly expensive...
I think I need to perhaps just get a single socket for now and stage any more over time. I need to think about which board I'd like to build too, there are a few options.
Re: It's long overdue - Cosmac Elf II build
Posted: 24 Apr 2026 13:14
by HigashiJun
rubber_jonnie wrote: 24 Apr 2026 13:09
Thanks, it's very annoying, though the seller has apologised and seems keen to sort it out, though these parts took 10 days to arrive so I hope they can send them faster this time.
:crossed1:
rubber_jonnie wrote: 24 Apr 2026 13:09
I think I need to perhaps just get a single socket for now and stage any more over time. I need to think about which board I'd like to build too, there are a few options.
That would be a wise move.
Re: It's long overdue - Cosmac Elf II build
Posted: 24 Apr 2026 14:42
by rubber_jonnie
HigashiJun wrote: 24 Apr 2026 13:14
rubber_jonnie wrote: 24 Apr 2026 13:09
I think I need to perhaps just get a single socket for now and stage any more over time. I need to think about which board I'd like to build too, there are a few options.
That would be a wise move.
Woo hoo, I managed to find some on Ali Express, fingers crossed they will be OK. They were quite inexpensive in the end.
My Traco's also just arrived, and the Cosmac is now sporting one:
IMG20260424141302.jpg
I'll see what the temps are like later.
Re: It's long overdue - Cosmac Elf II build
Posted: 24 Apr 2026 22:52
by HigashiJun
:dualthumbup:
Re: It's long overdue - Cosmac Elf II build
Posted: 29 Apr 2026 19:35
by rubber_jonnie
And the final IC for the CDP1861 video chip replacement arrived today, so fingers crossed I'll be able to get it built very soon.
Re: It's long overdue - Cosmac Elf II build
Posted: 29 Apr 2026 21:25
by stephen_usher
:crossed1: :crossed2:
Re: It's long overdue - Cosmac Elf II build
Posted: 30 Apr 2026 01:44
by HigashiJun
Yay !
Re: It's long overdue - Cosmac Elf II build
Posted: 30 Apr 2026 10:21
by rubber_jonnie
Here we are ready to go:
IMG20260430092619.jpg
And all soldered:
IMG20260430100322.jpg
I did have to do a little touch up and clean up and hand solder a few pins that didn't take. Took a little time to go around under the microscope and check all the pins were solid and there were no shorts, but looking good.
Next up I need to install the pin headers and test.
Re: It's long overdue - Cosmac Elf II build
Posted: 30 Apr 2026 12:04
by rubber_jonnie
Bugger, it doesn't work and the Elf freezes up on boot. Not a happy bunny :(
Re: It's long overdue - Cosmac Elf II build
Posted: 30 Apr 2026 14:24
by HigashiJun
Oh no...
:(