Heat sink on Spectrum ULA - is there any benefit?

balford
Posts: 100
Joined: Tue Dec 03, 2013 10:20 pm
Location: Dublin, Ireland

Re: Heat sink on Spectrum ULA - is there any benefit?

Post by balford » Fri Nov 17, 2017 10:08 am

The only ULA's I would definitely either put a heatsink on, or limit their use, are the 6C001E-6 ones. I've come across a fair amount of these being faulty, and they've become colloquially known as 'suicide ULA's' by others too.

Lardo Boffin
Posts: 662
Joined: Sat Nov 26, 2016 1:42 am

Re: Heat sink on Spectrum ULA - is there any benefit?

Post by Lardo Boffin » Fri Nov 17, 2017 10:51 am

I don’t think it will be possible to use an external cooler via the edge connector unless it is possible to get ‘low profile’ connection blocks. Currently the connector more or less fills the edge connector slot when inserted on both the zeddy and Spectrum. Hey ho.
ZX81 iss 1 (bugged ROM, kludge fix, normal, kit)
Iss 3 with ZXVid, another in nearly perfect box
TS 1000 iss 3, ZXPand AY, ZX8-CCB & ZX-KDLX
TS 1500
TS 2000
Spectrum 16k (iss 1 s/n 1499)
Spectrum 48k
Toastrack + DIVMMC future

Lardo Boffin
Posts: 662
Joined: Sat Nov 26, 2016 1:42 am

Re: Heat sink on Spectrum ULA - is there any benefit?

Post by Lardo Boffin » Fri Nov 17, 2017 10:52 am

balford wrote:
Fri Nov 17, 2017 10:08 am
The only ULA's I would definitely either put a heatsink on, or limit their use, are the 6C001E-6 ones. I've come across a fair amount of these being faulty, and they've become colloquially known as 'suicide ULA's' by others too.
Thanks. Which motherboard version do these tend to reside in?
ZX81 iss 1 (bugged ROM, kludge fix, normal, kit)
Iss 3 with ZXVid, another in nearly perfect box
TS 1000 iss 3, ZXPand AY, ZX8-CCB & ZX-KDLX
TS 1500
TS 2000
Spectrum 16k (iss 1 s/n 1499)
Spectrum 48k
Toastrack + DIVMMC future

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sirmorris
Posts: 2699
Joined: Thu May 08, 2008 4:45 pm
Location: oxon, uk

Re: Heat sink on Spectrum ULA - is there any benefit?

Post by sirmorris » Fri Nov 17, 2017 10:53 am

How about - just stop worrying and enjoy it while you can? :twisted: :lol:
--=== ZXpand+ ... A more moderner all-in-one upgrade solution for ZX81 ===--
* SD/MMC storage * 32K Hires-capable RAM * AY sound chip * Joystick port * Serial *
* BASIC enhancements - plug & play * Reset button * Auto-boot facility *

Lardo Boffin
Posts: 662
Joined: Sat Nov 26, 2016 1:42 am

Re: Heat sink on Spectrum ULA - is there any benefit?

Post by Lardo Boffin » Fri Nov 17, 2017 1:22 pm

sirmorris wrote:
Fri Nov 17, 2017 10:53 am
How about - just stop worrying and enjoy it while you can? :twisted: :lol:
Well ‘somebody’ isn’t channeling Sir Clive’s entrepreneurial spirit today... :lol:
ZX81 iss 1 (bugged ROM, kludge fix, normal, kit)
Iss 3 with ZXVid, another in nearly perfect box
TS 1000 iss 3, ZXPand AY, ZX8-CCB & ZX-KDLX
TS 1500
TS 2000
Spectrum 16k (iss 1 s/n 1499)
Spectrum 48k
Toastrack + DIVMMC future

Moggy
Posts: 1514
Joined: Wed Jun 18, 2008 1:00 pm

Re: Heat sink on Spectrum ULA - is there any benefit?

Post by Moggy » Fri Nov 17, 2017 2:39 pm

sirmorris wrote:
Fri Nov 17, 2017 10:53 am
How about - just stop worrying and enjoy it while you can? :twisted: :lol:
Says the man who caused me to butcher my speech box after following one of his flights of fancy which I never asked for or instigated in any way shape or form. :lol:

(Only kidding Charlie Mr Speeky is much more fun now)

balford
Posts: 100
Joined: Tue Dec 03, 2013 10:20 pm
Location: Dublin, Ireland

Re: Heat sink on Spectrum ULA - is there any benefit?

Post by balford » Mon Nov 20, 2017 10:37 pm

Lardo Boffin wrote:
Fri Nov 17, 2017 10:52 am
balford wrote:
Fri Nov 17, 2017 10:08 am
The only ULA's I would definitely either put a heatsink on, or limit their use, are the 6C001E-6 ones. I've come across a fair amount of these being faulty, and they've become colloquially known as 'suicide ULA's' by others too.
Thanks. Which motherboard version do these tend to reside in?
Issue 3 and 3B mostly, although they're also to be found in very late Issue 2's.

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