TRACOs are really good. Never had issues with them.rubber_jonnie wrote: Thu Apr 23, 2026 2:23 pm So, as described in the GitHub repo, with this display board the 7805 runs quite hot, even with the 7805 bolted down, so I am going to replace it with a Traco I think and we'll see how that gets on.
It's long overdue - Cosmac Elf II build
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HigashiJun
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Re: It's long overdue - Cosmac Elf II build
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rubber_jonnie
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Re: It's long overdue - Cosmac Elf II build
They're very good, I run them in my 48k Spectrums and my Science of Cambridge MK14 also has one too, very cool running indeed.HigashiJun wrote: Fri Apr 24, 2026 12:06 amTRACOs are really good. Never had issues with them.rubber_jonnie wrote: Thu Apr 23, 2026 2:23 pm So, as described in the GitHub repo, with this display board the 7805 runs quite hot, even with the 7805 bolted down, so I am going to replace it with a Traco I think and we'll see how that gets on.
I ordered some last night as annoyingly I'd run out. That's happened a lot lately.
I put the thermal camera on the 7805 yesterday after about 10 minutes and it was already hitting 60C+ and while that's well within the spec for a 7805, I'm sure a Traco will do a lot better.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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HigashiJun
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Re: It's long overdue - Cosmac Elf II build
For sure it will !
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rubber_jonnie
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Re: It's long overdue - Cosmac Elf II build
Looks like they may be out for delivery this afternoon, so fingers crossed the upgrade will be completed soon
Next I need a source of 86 pin expansion sockets if I'm going to consider upgrading it
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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HigashiJun
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Re: It's long overdue - Cosmac Elf II build
That's the toughest part...rubber_jonnie wrote: Fri Apr 24, 2026 9:41 am Next I need a source of 86 pin expansion sockets if I'm going to consider upgrading it
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rubber_jonnie
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Re: It's long overdue - Cosmac Elf II build
You're not wrong, even Ali Express is proving difficult.HigashiJun wrote: Fri Apr 24, 2026 11:09 amThat's the toughest part...rubber_jonnie wrote: Fri Apr 24, 2026 9:41 am Next I need a source of 86 pin expansion sockets if I'm going to consider upgrading it
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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HigashiJun
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- Location: Tokyo
Re: It's long overdue - Cosmac Elf II build
I've found some here:
https://wakamatsu.biz/products/detail/450742
Wakamatsu is one of my favourite supplier here in Japan.
https://wakamatsu.biz/products/detail/450742
Wakamatsu is one of my favourite supplier here in Japan.
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HigashiJun
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rubber_jonnie
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Re: It's long overdue - Cosmac Elf II build
@HigashiJun Thanks for thse, but I have 4 expansion slots and that seems rather expensive...
In other news I had a package arrive today that was supposed to have the 4014 and 4040 in it for the CDP1861 remake. It contained 2 4014's. Not best pleased.
In other news I had a package arrive today that was supposed to have the 4014 and 4040 in it for the CDP1861 remake. It contained 2 4014's. Not best pleased.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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HigashiJun
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- Joined: Fri Jun 19, 2020 7:21 am
- Location: Tokyo
Re: It's long overdue - Cosmac Elf II build
rubber_jonnie wrote: Fri Apr 24, 2026 12:18 pm @HigashiJun Thanks for thse, but I have 4 expansion slots and that seems rather expensive...
In other news I had a package arrive today that was supposed to have the 4014 and 4040 in it for the CDP1861 remake. It contained 2 4014's. Not best pleased.
Sorry to hear that.
And yes, EOL parts tend to become increasingly expensive...