tips for original keyboard
tips for original keyboard
The first zeddy I had, I ripped the old ribbon on opening it. I'm wondering if there are any tips on handling the ribbon cables please for removal and re-insertion, and any recommendations for new replacement membrane keyboards, as I believe there are some out there.
All that I've learned - https://msknight.com/bbc/index.html#zx81
Re: tips for original keyboard
There is nothing preventing the ribbon to break if it's original. It's brittle and can't be rescued.
A replacement is the best you can do.
Warm up the old membrane with a hair dryer then fiddle it of beginning at one edge of the left side.
Most probably there will be glue sticking on the case, it can be rubbed away with alcohol or isopropanol. Make sure to do so before applying a new membrane. The best replacement membranes are those sold by Rich Mellor via his website sellmyretro.com.
Actually they are thinner and better to use than the original.
Do not buy original membranes. They won't last.
A replacement is the best you can do.
Warm up the old membrane with a hair dryer then fiddle it of beginning at one edge of the left side.
Most probably there will be glue sticking on the case, it can be rubbed away with alcohol or isopropanol. Make sure to do so before applying a new membrane. The best replacement membranes are those sold by Rich Mellor via his website sellmyretro.com.
Actually they are thinner and better to use than the original.
Do not buy original membranes. They won't last.
In theory, there is no difference between theory and practice. But, in practice, there is.
Re: tips for original keyboard
Many thanks for the advice.
All that I've learned - https://msknight.com/bbc/index.html#zx81
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Re: tips for original keyboard
The shop is shut for holidays but there is a clicky keyboard to be had here:
https://www.ginger-electronic.com/en/re ... model-zx81
They are excellent and make using the zeddy a lot easier.
https://www.ginger-electronic.com/en/re ... model-zx81
They are excellent and make using the zeddy a lot easier.
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
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
Re: tips for original keyboard
Cheers. Out of stock at the moment, but I've signed up for a notification. Looks good.
All that I've learned - https://msknight.com/bbc/index.html#zx81
Re: tips for original keyboard
They are good, I have five of the buggers as well as external keyboards and wouldn't go back to membrane now. One problem I do have with them is trying to get the ribbon into the sockets so I found it was just as easy to solder the tails to the underside of the m/board, very good product.
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Re: tips for original keyboard
If you do want a new membrane keyboard, in the UK, a recommended seller is Rich Mellor, trading as RWAP. I have used these myself.
There are other sellers.
Mark
There are other sellers.
Mark
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ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.
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Re: tips for original keyboard
There is a knack to it which I now have after much practice.Moggy wrote: ↑Tue Jan 09, 2024 4:50 pm They are good, I have five of the buggers as well as external keyboards and wouldn't go back to membrane now. One problem I do have with them is trying to get the ribbon into the sockets so I found it was just as easy to solder the tails to the underside of the m/board, very good product.
They are supplied with little boards now to make fitting easier.
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
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
Re: tips for original keyboard
Thanks Lardo good to know.
However his site doesn't mention or show this in the description.
However his site doesn't mention or show this in the description.
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Re: tips for original keyboard
They come with these now:
The shop is open again.
The shop is open again.
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
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