Hi,
I follow the instructions in this video: https://www.youtube.com/watch?v=AbIJza7ElrE
Ciao
Leo
Search found 57 matches
- Thu Apr 18, 2024 9:21 am
- Forum: Hardware
- Topic: DC-DC mod query
- Replies: 6
- Views: 605
- Mon Feb 05, 2024 9:11 pm
- Forum: Hardware
- Topic: Timing differences between different versions of 48K ULAs?
- Replies: 5
- Views: 409
Re: Timing differences between different versions of 48K ULAs?
Yes, I got that one, since I was missing the so-called 'Issue 1.5' motherboard in my collection
They are quite rare, possibly even more than Issue 1 ones. Now if I only could put my greedy hands on an Issue 5 (something which I know will never happen...)
They are quite rare, possibly even more than Issue 1 ones. Now if I only could put my greedy hands on an Issue 5 (something which I know will never happen...)
- Wed Jan 31, 2024 3:49 pm
- Forum: FPGA Devices
- Topic: ZX-Uno General discussion
- Replies: 106
- Views: 9574
Re: ZX-Uno General discussion
Try Antonio Villena's website: https://antoniovillena.com/
- Thu Oct 26, 2023 3:10 pm
- Forum: Announcements
- Topic: Retro Computer Festival 2023 at the CCH in Cambridge
- Replies: 0
- Views: 69
Retro Computer Festival 2023 at the CCH in Cambridge
Hi,
For those not too far from Cambridge, it's on during the first weekend in November.
https://www.computinghistory.org.uk/det ... -November/
Ciao
Leo
For those not too far from Cambridge, it's on during the first weekend in November.
https://www.computinghistory.org.uk/det ... -November/
Ciao
Leo
- Mon Oct 23, 2023 5:39 pm
- Forum: Hardware
- Topic: +2 External Tape PCB (JoulesperCoulomb circuit)
- Replies: 4
- Views: 233
Re: +2 External Tape PCB (JoulesperCoulomb circuit)
Well, that sounds interesting, thanks for putting some missed bedtime into it!
Ciao
Leo
Ciao
Leo
- Tue Aug 01, 2023 11:50 am
- Forum: Hardware
- Topic: How did your ZX Spectrum die?
- Replies: 26
- Views: 761
Re: How did your ZX Spectrum die?
My original 16K ZX Spectrum, bought in Siena sometimes in 1983 (I remember being offered the choice between the 16K and 32K models by the shop owner!) and soon updated to 48K after a trip to Florence to get the necessary chips, still lives happily
- Wed May 31, 2023 3:35 pm
- Forum: Hardware
- Topic: how to get a divide 57c to work ......
- Replies: 25
- Views: 796
Re: how to get a divide 57c to work ......
Have you already looked at this site? https://divide.speccy.cz/
- Sun May 07, 2023 9:57 am
- Forum: Hardware
- Topic: Hang on a minute...
- Replies: 11
- Views: 561
Re: Hang on a minute...
Maybe it needs a backplane, like the one here: http://projectspeccy.com/projects/ (scroll down until you find Sinclair Spectrum Backplane)
It would need some adaptation, but it should be feasible.
It would need some adaptation, but it should be feasible.
- Fri Apr 21, 2023 3:11 pm
- Forum: Hardware
- Topic: 128 +2 Grey. The picture is not very clear.
- Replies: 19
- Views: 643
Re: 128 +2 Grey. The picture is not very clear.
Hmm, I don't think TR8 needs to be flipped, only the three 2N3904s.
- Tue Apr 04, 2023 11:41 am
- Forum: Sinclair Miscellaneous
- Topic: Spectrum as a serious business machine?
- Replies: 33
- Views: 1463
Re: Spectrum as a serious business machine?
It might have been mentioned already, but back in 1984 a few ZX Spectrum were used by RAI (the "Italian BBC") during the Giro d'Italia, as described in these articles (in Italian)
https://quattrobit.blogspot.com/2021/01 ... -1984.html
https://quattrobit.blogspot.com/2021/01 ... -1984.html
- Tue Mar 28, 2023 11:51 am
- Forum: Hardware
- Topic: The Joys of a reborn Speccy
- Replies: 8
- Views: 322
Re: The Joys of a reborn Speccy
I can only agree, I have a couple of those SPECTRA+128 interfaces, and they are great!
Just make sure yours is a grey +2, since otherwise an adapter is needed.
Just make sure yours is a grey +2, since otherwise an adapter is needed.
- Thu Mar 09, 2023 1:26 pm
- Forum: Hardware
- Topic: ZX Spectrum+ with weird horizontal white lines
- Replies: 7
- Views: 274
Re: ZX Spectrum+ with weird horizontal white lines
Try doing a recap, I've seen similar artifact disappear with a fresh set of capacitors.
- Mon Mar 06, 2023 6:34 pm
- Forum: Hardware
- Topic: Buying a used Microdrive - any tips?
- Replies: 8
- Views: 308
Re: Buying a used Microdrive - any tips?
Good to know, I sent them a number of mails over time but never got a reply.
- Mon Mar 06, 2023 6:22 pm
- Forum: Hardware
- Topic: Buying a used Microdrive - any tips?
- Replies: 8
- Views: 308
Re: Buying a used Microdrive - any tips?
As you're located in the UK you can get the same stuff from ZX Renew (https://zxrenew.co.uk/Replacement-Micro ... p297531870) and avoid the risks of shipping from China: after more than two years since I ordered (and paid for) it, I'm still waiting for a replica of the Toastrack keypad
- Thu Feb 23, 2023 11:49 am
- Forum: Hardware
- Topic: ZX Spectrum Issue 1
- Replies: 5
- Views: 200
Re: ZX Spectrum Issue 1
Let's not forget the Spectrum has also an original 32KB RAM extension, those are not common either...
- Tue Feb 14, 2023 9:40 am
- Forum: Announcements
- Topic: Introduce yourself!
- Replies: 684
- Views: 191920
Re: Introduce yourself!
Hi,
Probably it's just the rubber belt of the datacorder, which after ~35 years needs replacing Plenty of videos showing how to do it on YouTube.
One important fact: is your +2 grey or black? The number of belts differ between the two models.
Ciao
Leo
Probably it's just the rubber belt of the datacorder, which after ~35 years needs replacing Plenty of videos showing how to do it on YouTube.
One important fact: is your +2 grey or black? The number of belts differ between the two models.
Ciao
Leo
- Sat Feb 11, 2023 11:54 am
- Forum: Showcase your work!
- Topic: WiP Raspberry Pico Microdrive Hardware Emulator
- Replies: 87
- Views: 5343
Re: WiP Raspberry Pico Microdrive Hardware Emulator
Great, thanks!
- Fri Feb 10, 2023 10:57 am
- Forum: Showcase your work!
- Topic: WiP Raspberry Pico Microdrive Hardware Emulator
- Replies: 87
- Views: 5343
Re: WiP Raspberry Pico Microdrive Hardware Emulator
Hi Tom,
Talking about the latest version of your OqtaDrive QL (v1.2), where can I find the BoM?
I ordered a few of them from PCBWay, but now I'm stuck. I think I saw it linked to the previous version (v1.1)?
Thanks
Ciao
Leo
Talking about the latest version of your OqtaDrive QL (v1.2), where can I find the BoM?
I ordered a few of them from PCBWay, but now I'm stuck. I think I saw it linked to the previous version (v1.1)?
Thanks
Ciao
Leo
- Wed Feb 01, 2023 9:59 am
- Forum: Other Retro Stuff
- Topic: List of known Z88s
- Replies: 9
- Views: 426
Re: List of known Z88s
Same here, I might find some time to dig them up during the WE
- Wed Jan 25, 2023 3:09 pm
- Forum: Hardware
- Topic: New open lower RAM module design (photoessay)
- Replies: 98
- Views: 4153
- Wed Jan 25, 2023 2:30 pm
- Forum: Hardware
- Topic: New open lower RAM module design (photoessay)
- Replies: 98
- Views: 4153
Re: New open lower RAM module design (photoessay)
Hi,
When I upload the Gerber files (fab1.2.zip) to JLCPCB the system tells me that it's a 4-layer circuit: is that correct?
Thanks
Ciao
Leo
When I upload the Gerber files (fab1.2.zip) to JLCPCB the system tells me that it's a 4-layer circuit: is that correct?
Thanks
Ciao
Leo
- Thu Dec 29, 2022 4:37 pm
- Forum: Hardware
- Topic: Newbie - info on Spectrum 16k Series 1
- Replies: 14
- Views: 520
Re: Newbie - info on Spectrum 16k Series 1
Check the voltages, 12V are needed for the video section to work properly.
This one being an Issue 2, another possibility is that potentiometers VR1 and VR2 need to be adjusted.
Ciao
Leo
This one being an Issue 2, another possibility is that potentiometers VR1 and VR2 need to be adjusted.
Ciao
Leo
- Sun Dec 11, 2022 3:02 pm
- Forum: Hardware
- Topic: Newbie - info on Spectrum 16k Series 1
- Replies: 14
- Views: 520
Re: Newbie - info on Spectrum 16k Series 1
There you go, the link to a snapshot of an Issue 1 from the back
https://1drv.ms/u/s!As1H_JFb9yqcyj_txmg ... g?e=msTW16
https://1drv.ms/u/s!As1H_JFb9yqcyj_txmg ... g?e=msTW16
- Fri Dec 09, 2022 10:03 am
- Forum: Hardware
- Topic: Newbie - info on Spectrum 16k Series 1
- Replies: 14
- Views: 520
Re: Newbie - info on Spectrum 16k Series 1
Hi,
This is just one of many images you can find: https://spectrumforeveryone.com/wp-cont ... ssue-1.jpg
Please do note this photo includes the 32K expansion, which should be missing in your case.
Ciao
Leo
This is just one of many images you can find: https://spectrumforeveryone.com/wp-cont ... ssue-1.jpg
Please do note this photo includes the 32K expansion, which should be missing in your case.
Ciao
Leo
- Mon Nov 28, 2022 4:30 pm
- Forum: Hardware
- Topic: Spectrum 128K +2 Datacorder
- Replies: 12
- Views: 337