Issue Tx boards discussions

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RalfR
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Re: Issue Tx boards discussions

Post by RalfR »

I am really impressed!


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Pr0f
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Re: Issue Tx boards discussions

Post by Pr0f »

tetroid wrote:
Pr0f wrote:Are there any additional signals around the ROM socket - as I've spotted 3 rows of pads, but only 2 are required for the original ROM socket? ;-)
Two rows have parallel connection, because of different connectors have 2.54 or 5.08 mm between rows.
Modern connectors - 5.08mm, but old QL connector - 2.54.
Good planning :-) Thank you for the explanation


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Cristian
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Re: Issue Tx boards discussions

Post by Cristian »

:o 8-)


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Re: Issue Tx boards discussions

Post by tetroid »

Tesla wrote:Tetroid, It is wonderful.
New motherboard + new keyboard, will we see the new ql soon? :D
Unfortunately, we need only mass production ( big batch ) for QL case to have the resonable price. Case - last big problem.


I still have my QL items still available, anyone interested, please contact me at tetroid@inbox.ru
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Dave
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Re: Issue Tx boards discussions

Post by Dave »

tetroid wrote:Two rows have parallel connection, because of different connectors have 2.54 or 5.08 mm between rows.
Modern connectors - 5.08mm, but old QL connector - 2.54.
This was exactly my experience too. I had to put a second row of contacts in for the same reason.

How come the DRAM didn't change from 64Kx1 (x16)?


tetroid
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Re: Issue Tx boards discussions

Post by tetroid »

Dave wrote:
tetroid wrote:Two rows have parallel connection, because of different connectors have 2.54 or 5.08 mm between rows.
Modern connectors - 5.08mm, but old QL connector - 2.54.
This was exactly my experience too. I had to put a second row of contacts in for the same reason.

How come the DRAM didn't change from 64Kx1 (x16)?
I have many Samsung KM4164 and no 4464.
Because of this I didn' change this part. :)


I still have my QL items still available, anyone interested, please contact me at tetroid@inbox.ru
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dex
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Re: Issue Tx boards discussions

Post by dex »

Unfortunately, we need only mass production ( big batch ) for QL case to have the resonable price.
Can be the ZX Spectrum Next case used for QL/Q68 board?
That is mass produced, and we can try some negotiation about suprlus production for QL use.


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Cristian
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Re: Issue Tx boards discussions

Post by Cristian »

What about utilizing an existing (thick) keyboard? Would it be adaptable as a case?

Image
Image


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Peter
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Re: Issue Tx boards discussions

Post by Peter »

dex wrote:Can be the ZX Spectrum Next case used for QL/Q68 board?
That is mass produced, and we can try some negotiation about suprlus production for QL use.
Not ideal as it lacks the function keys.


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tofro
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Re: Issue Tx boards discussions

Post by tofro »

Peter wrote:
dex wrote:Can be the ZX Spectrum Next case used for QL/Q68 board?
That is mass produced, and we can try some negotiation about suprlus production for QL use.
Not ideal as it lacks the function keys.
Beyond that: quite a bit of "getting-used-to" involved if you don't have a ZX Spectrum background.

My muscle memory got quite a bit confused when I first tried the Next.


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