Spectrum Computing

A plane mono ext cable would be best bet as the units chip is mono. A mono socket to 2 flying mono leads is a bit of an odd ball with no ready use generally and not readily for sale I would have thought. Stereo socket to 2 mono leads yes but a mono socket to 2 mono leads not really unless, for your ...

Just tried my own Micro-speech by plugging the 3.5mm lead into the microphone socket of my tower system and it works perfectly. Looked at the signal level in Audacity and it's quite a strong one which needed to be turned down to nearly zero to stop it red lining. I can only suggest you do something ...

Yup, ran across this website also. You might be right about a signal below line level. But I am actually plugging it into Tascam digital portastudio which acts as an amplifier. What would be a proper way to output audio from its 3.5mm lead without modding it then? If memory serves the inputs on som...

This may be useful to you also.

https://blog.bisinternet.com/index.php/ ... h-uspeech/

Possibly because you are plugging it into something that expects a line level signal (300-450mv domestic 750+ mv professional line level.) The instruction manual says to record speech plug it into the MIC socket of a tape recorder which usually is for microphones with a weak output, this suggests to...

Just my two bobs worth.

Iv'e known Mark from the ZX81 forum for the last 13 years and not only has he been thoroughly helpful over all this time I personally would trust him with my details for recovering my WOS account based on all my interactions with him.

1024MAK wrote: ↑Thu May 02, 2024 9:02 am No

You can however use a search engine:

Code: Select all

site:https://spectrumcomputing.co.uk/forums/ QL

Mark

Thanks for the tip, works well on other phpBB sites too I've discovered.

I would just like to add that I'm eternally grateful to those here who have got off their backsides and provided this forum regardless of software used, you have my thanks for it's worth.

PS I find the dancing bananas more amusing than I should do!

I find that any forum using phpBB software suffers the same thing re the searches and common words problems, ( I'm a member on three others) The common word thing is irksome as you have to pad out the search terms with extraneous words which the search function homes in on rather than what you are a...

Hmmm at last count I had about 20 odd Z80s of mixed manufacture so along with the 40 rolls of Sinclair printer paper and knackered Sinclair printers I also posses It might be a good time to open a tat shop!

The power supply output needs to be AC not DC and is rectified and regulated inside the printer itself. The website in the link in the post above says that you can buy fax paper and cut it down but there is no need as rolls of the right width are readily available, picture is of one of mine, and whi...

A link and a video that may be of interest.

https://www.sinclairzxworld.com/viewtopic.php?f=5&t=465

I couldn't say what would be the result re the Spectrum, but I have converted a few ZX81's into ZX80's ( as I didn't fancy paying half a grand for a "doesn't power up not tested no returns" piece of drek) This involved fitting a few resistors to various pins on the CPU to stop the NMI from...

Juan F. Ramirez wrote: ↑Sun Apr 07, 2024 3:12 pm An LP player... 45 or 33 rpm... memories!

Not forgetting 16 and 78 RPM for those of us with even longer memories!

Another hires system for the ZX81 in this implementation for Forth called ARX, details here..

https://www.sinclairzxworld.com/viewtop ... 995#p54995


Details on the driver itself here...


https://sinclairzxworld.com/viewtopic.p ... 857#p54857

Just to make certain I reloaded a fresh copy of the emulator (Fuse) and now it all works perfectly with large integers!! I also tried two other emulators and all ok with them also so can only assume I had a corruption in the emulator as all is ok and to confirm I have just run a primes routine to fi...

Then it must be something else causing a reset when using large integers in the Josephus problem, sadly I don't have the skills to solve this.

Forgot to add that my compilation for <= was : <= > not ;

The Josephus problem if you are not familiar with it can be found here... https://en.wikipedia.org/wiki/Josephus_problem Not a great problem but with large enough numbers a good speed test I have found. Usually in this example a smaller number is used usually in double figures. This code worked in y...

Just seen your PS so will post the code that crashes with explanation.

When I say not popular what I mean is that when ever I bring the subject up people leave the room! :lol: It will be nice to have a FIG model and as you say the manual is readily available. Will this ever be available to use on real speccy or are you concentrating on emulator only? The floating point...

I'm enjoying this thread quite a lot as Forth is my thing for computation, Forth79 in my case on the ZX81 and it's been fun comparing the two. Computation wise this is a fair bit slower than the ZX81 and not as fully featured and this latest version has introduced one bug at least which I suspect li...

Agreed, tried it on three emulators and each had a noticeable top end "buzz" not apparent in this recording, maybe ok on real kit nice to hear something musical rather than the usual chip tune thud thud bleep.

Did they give you free Guinness? EDIT: My uncle used to work for Guinness... whenever an employee was in hospital for any reason they used to give them a bottle of Guinness to put on the bedside table in the hospital which is probably where the myth that "Guinness is good for you" origina...

Hi flange, I know this effort as I know Poudade's, Toledo's and many others. And I mostly agree with you. All of those projects play much better chess, have more options and have a nicer interface, but let's not confuse things. That was not my aim. If you are looking for something that will give yo...