Search found 21 matches

by Z80Man
Sun Oct 11, 2020 1:04 pm
Forum: ZX Spectrum Next
Topic: Internal Speaker
Replies: 38
Views: 11969

Re: Internal Speaker

Hi guys, I'm going to bring a few answers to your latest thoughts and experiments. - Using the 9 V main supply is indeed better, or you'll risk draining too much current out of the 5 V regulator and get nothing left to correctly power the Next (especially at 28 MHz). - However, the 9 V supply is ind...
by Z80Man
Tue Sep 29, 2020 11:42 pm
Forum: ZX Spectrum Next
Topic: Internal Speaker
Replies: 38
Views: 11969

Re: Internal Speaker

A higher impedance ohms speaker will result in a lower sound volume unless it has a very high sensitivity ; or at least using a lower impedance speaker is a cheap way to get more output power from the amplifier stage, but the sound quality will be worse. So it's mostly a matter of chosing the best c...
by Z80Man
Tue Sep 29, 2020 7:51 am
Forum: ZX Spectrum Next
Topic: Opening my Next terrifies me!
Replies: 8
Views: 3000

Re: Opening my Next terrifies me!

Yes, I've noticed they're more like the modern ones I bought recently for my real Speccies and not the grained translucent and brittle ones used on the original models, but still don't touch them with a soldering iron... :p However, just flipping the boards and letting the connectors fitted in the s...
by Z80Man
Tue Sep 29, 2020 7:39 am
Forum: ZX Spectrum Next
Topic: Internal Speaker
Replies: 38
Views: 11969

Re: Internal Speaker

Many thanks for the precisions. I'm hesitant to add an internal peaker as for now the headphones in the oudio output jack are allright, and I found the levels between the different sources to be satisfactorily balanced. It's mostly that my monitors don't have internal speakers, so in case I would li...
by Z80Man
Mon Sep 28, 2020 11:46 am
Forum: ZX Spectrum Next
Topic: Using internal sd to free up external
Replies: 13
Views: 4269

Re: Using internal sd to free up external

I guess you could still use the original COPY ... TO ... or the .cp DOT command, though ?
by Z80Man
Mon Sep 28, 2020 11:39 am
Forum: General
Topic: Connect to a PC
Replies: 44
Views: 22826

Re: Connect to a PC

Well, I've just received my next last week, it was stuck in paris until the postal service decided to send by boat 22 tons of parcels waiting there since last June. :( Anyway, I'll have to find some documentation about the .mdr file structure and grab a sample. The specificity is it contains a drive...
by Z80Man
Mon Sep 28, 2020 11:20 am
Forum: ZX Spectrum Next
Topic: Editting
Replies: 6
Views: 2183

Re: Editting

That's actually what I'm currently working on as I consider it essential, and much more handy than having to power off and move the SD card to a PC all the time. Having to cope with different ways of loading/saving and/or directories isn't necessarily the feature to prioritize. The first thing to do...
by Z80Man
Mon Sep 28, 2020 10:06 am
Forum: ZX Spectrum Next
Topic: Spectrum Next should have a GUI...
Replies: 17
Views: 4774

Re: Spectrum Next should have a GUI...

It does perfectly make sense project wise, and it made a lot of sense back then when we used the Specturm to work, and not only to play. A a matter of fact, I was working on this in the late 80's, but with only a 48K model, I couldn't of course store windows in memory banks, but I made great use of ...
by Z80Man
Mon Sep 28, 2020 9:48 am
Forum: ZX Spectrum Next
Topic: Opening my Next terrifies me!
Replies: 8
Views: 3000

Re: Opening my Next terrifies me!

Once you've removed the bottom cover, remove all 8 screws holding both the motherboard and the daughter board, and remove both of them at the same time. The flat cable joining both boards is short and relatively rigid, so you can't easily manipulate the motherboard if you keep the daughter board scr...
by Z80Man
Mon Sep 28, 2020 7:04 am
Forum: ZX Spectrum Next
Topic: Internal Speaker
Replies: 38
Views: 11969

Re: Internal Speaker

Just a note, the paper printed documentation quotes a 28 to 32 ohms speaker while the new PDF version quotes a 8 to 16 ohms speaker, so I guess the output impedance has been reduced on the issue 2B version motherboards, which makes it easier to select more commonly found models. Now the output power...