Search found 31 matches

by chequered flag
Sat Aug 11, 2018 6:07 am
Forum: Hardware
Topic: PSU Voltages.
Replies: 3
Views: 437

Re: PSU Voltages.

The power supplies are unregulated. They should give 9 volts at maximum current. Less than maximum current will give a higher voltage. The PSU that sometimes gives 0.9 V may have a short in the cable when you bend it in certain angels. The PSU that gives 14.5 V is close to the maximum voltage the Sp...
by chequered flag
Fri Aug 10, 2018 8:56 pm
Forum: Hardware
Topic: Zx spectrum +2a comp mod
Replies: 6
Views: 851

Re: Zx spectrum +2a comp mod

No speaker in any 128K model.
The RGB port provides mono sound and it is connected to SCART.

Some casual technical information:
http://www.dataserve-retro.co.uk/conten ... /d200.html
https://spectrumforeveryone.com/technical/
by chequered flag
Fri Aug 10, 2018 4:07 pm
Forum: Hardware
Topic: Zx spectrum +2a comp mod
Replies: 6
Views: 851

Re: Zx spectrum +2a comp mod

RGB SCART (recomended): https://www.ebay.com/itm/Sinclair-ZX-Spectrum-3-2A-2B-High-Quality-RGB-Scart-Video-Cable-TV-Lead/260830045368?epid=10020831665&hash=item3cbaaea4b8%3Ag%3ATd4AAOSwfbRbWuUR&_sacat=0&_nkw=scart+spectrum+%2B2&_from=R40&rt=nc&_trksid=m570.l1313 https://www.ebay.com/itm/SINCLAIR-ZX-...
by chequered flag
Tue Aug 07, 2018 9:23 pm
Forum: Hardware
Topic: Where to buy Spectrum+2 components?
Replies: 3
Views: 528

Re: Where to buy Spectrum+2 components?

List it on eBay? It is worth something. https://www.ebay.com/itm/Sinclair-ZX-Spectrum-2-Home-Computer-Vintage-Console-Spares-Repairs/253761914263?hash=item3b15638597%3Ag%3Aq1YAAOSwny1ahs0X&_sacat=0&_nkw=spectrum+%2B2+spares&_from=R40&rt=nc&_trksid=m570.l1313 Buy spares and repairs with a working key...
by chequered flag
Tue Aug 07, 2018 6:46 am
Forum: Hardware
Topic: Where to buy Spectrum+2 components?
Replies: 3
Views: 528

Re: Where to buy Spectrum+2 components?

I am not aware of any maker of Spectrum +2 membranes. I know two makers of rubber key membranes and plus membranes. RWAP: https://www.sellmyretro.com/offer/details/brand-new-16~~48k-sinclair-zx-spectrum-keyboard-membrane-2502 https://www.sellmyretro.com/offer/details/brand-new-%282016%29-sinclair-zx...
by chequered flag
Sun Jul 29, 2018 8:19 pm
Forum: Hardware
Topic: Brand new r2 48kB, not quite working
Replies: 42
Views: 3623

Re: Brand new r2 48kB, not quite working

ZX81 video mods for sale. https://www.sellmyretro.com/offer/details/sinclair-zx81-zxvid--_-composite-video~~ula-fix-%28fitted%29-2583 https://www.sellmyretro.com/offer/details/sinclair-zx81-zxvid--_-composite-video~~ula-fix-%28self-_fit%29-2338 https://www.sellmyretro.com/offer/details/zx8-_ccb-_syn...
by chequered flag
Sun Jul 29, 2018 7:24 pm
Forum: Hardware
Topic: Brand new r2 48kB, not quite working
Replies: 42
Views: 3623

Re: Brand new r2 48kB, not quite working

That link is now collected. Really nice.
http://www.projectavr.com/spectrum-comp ... nd-refurb/

Did you see the "Sinclair Spectrum Composite Mod PCB" that fits inside the RF box.
http://www.projectavr.com/esp-01-esp-03 ... ing-board/
by chequered flag
Sun Jul 29, 2018 6:54 pm
Forum: Hardware
Topic: Speccy help needed!
Replies: 18
Views: 1906

Re: Speccy help needed!

I don't know for sure but this configuration: Spectrum RCA Composite Video to SCART Composite Video to hdmi converter to HDMI, will still depend on the spectrum composite signal that is not 100% correct. Here is an example how difficult it can be: https://spectrumcomputing.co.uk/forums/viewtopic.php...
by chequered flag
Sun Jul 29, 2018 4:30 am
Forum: Hardware
Topic: Speccy help needed!
Replies: 18
Views: 1906

Re: Speccy help needed!

Spectrum RCA Composite Video to SCART Composite Video: https://www.kjell.com/se/sortiment/ljud-bild/kablar-adaptrar/rca-video/adapter/scart-adapter-komposit-p37004 https://www.kjell.com/se/sortiment/ljud-bild/kablar-adaptrar/rca-video/rca-till-scart/scart-till-3x-rca-med-switch-1-5-m-p39239 Spectrum...
by chequered flag
Thu Jul 26, 2018 1:04 pm
Forum: Hardware
Topic: Brand new r2 48kB, not quite working
Replies: 42
Views: 3623

Re: Brand new r2 48kB, not quite working

I watched the video now. If the output turns blue, your TV now thinks the Spectrum is outputting a SECAM signal, so reverse the adjustment bit by bit. Try to adjust to a more yellow kind of white. Like cream. What if I can’t achieve a good video output? Sometimes even given the best equipment availa...