Does anyone know when UK700 PSUs shipped with ZX81s?

Discussions about Sinclair ZX80 and ZX81 Hardware
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Flatulentia
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Re: Does anyone know when UK700 PSUs shipped with ZX81s?

Post by Flatulentia »

Lardo Boffin wrote: Thu Jun 08, 2023 2:06 pm A few things to look out for in very early zeddies:...
Good stuff! Thank you.
ZX81 with ZiLOG Z84 CMOS Z80, 32KB battery-backed Toshiba 55257 SRAM with charge status LED, Wilf's "Why Wait?" mod and switch-mode 5V regulator. 50/60Hz mode switch, composite video output with Zigg's back porch mod and 1080p60 HDMI output.
Lardo Boffin
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Re: Does anyone know when UK700 PSUs shipped with ZX81s?

Post by Lardo Boffin »

Flatulentia wrote: Thu Jun 08, 2023 2:10 pm
Lardo Boffin wrote: Thu Jun 08, 2023 2:06 pm A few things to look out for in very early zeddies:...
Good stuff! Thank you.
Probably an early one:

https://www.ebay.co.uk/itm/275883582098 ... media=COPY

ZX80 PSU and if you look at photo 3 you can see one of the feet is a little squished meaning it is a sponge type not rubber foot.
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
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Flatulentia
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Location: Cambridgeshire, UK

Re: Does anyone know when UK700 PSUs shipped with ZX81s?

Post by Flatulentia »

Squidgy! :D

Never mind. I have a roll of sticky back neoprene foam tape that's exactly the right width to cut ZX81 feet from, so mine may end up with squidgies after I've cracked it open. ;)
ZX81 with ZiLOG Z84 CMOS Z80, 32KB battery-backed Toshiba 55257 SRAM with charge status LED, Wilf's "Why Wait?" mod and switch-mode 5V regulator. 50/60Hz mode switch, composite video output with Zigg's back porch mod and 1080p60 HDMI output.
Moggy
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Re: Does anyone know when UK700 PSUs shipped with ZX81s?

Post by Moggy »

Flatulentia wrote: Fri Jun 09, 2023 11:05 pm Squidgy! :D

Never mind. I have a roll of sticky back neoprene foam tape that's exactly the right width to cut ZX81 feet from, so mine may end up with squidgies after I've gently opened it up and handled it with tender loving care!.
FTFY. :D
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Flatulentia
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Location: Cambridgeshire, UK

Re: Does anyone know when UK700 PSUs shipped with ZX81s?

Post by Flatulentia »

And no. I'm not the one selling on eBay who's put up a ZX81 with 16KB RAM and composite video mods that looks like it's been run over by a truck.

:lol:
ZX81 with ZiLOG Z84 CMOS Z80, 32KB battery-backed Toshiba 55257 SRAM with charge status LED, Wilf's "Why Wait?" mod and switch-mode 5V regulator. 50/60Hz mode switch, composite video output with Zigg's back porch mod and 1080p60 HDMI output.
Lardo Boffin
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Joined: Sat Nov 26, 2016 2:42 am

Re: Does anyone know when UK700 PSUs shipped with ZX81s?

Post by Lardo Boffin »

You would think they would wipe it down a little!
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
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Flatulentia
Posts: 93
Joined: Sun May 14, 2023 3:58 pm
Location: Cambridgeshire, UK

Re: Does anyone know when UK700 PSUs shipped with ZX81s?

Post by Flatulentia »

And it still went for over £56! :shock:
ZX81 with ZiLOG Z84 CMOS Z80, 32KB battery-backed Toshiba 55257 SRAM with charge status LED, Wilf's "Why Wait?" mod and switch-mode 5V regulator. 50/60Hz mode switch, composite video output with Zigg's back porch mod and 1080p60 HDMI output.
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