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British Airways Systems Failure.So unless you have been living under a rock for the past 24 hours, you will have learned that British Airways (BA) have had a major IT systems failur…
... current to energise a relay coil than to make a transistor ... -
Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …
... /> Both my Toastracks are Version 6U so any idea I had ... -
Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …
... -2450 fitted to second Version 6U 128k Toast-rack : all OK ... -
Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
... /> This is of an extra coil:
[URL=http://s1063.photobucket ... -
Non-Ferranti ULA 6C001E-7?Hello! I don't like Iss2 boards that much but after revising one Speccy like that for a friend, the results were so positive that I decided to have …
Trying to repair a Speccy 48k - No PulsingI've had this machine for ages. I'd I've been putting off fixing it for some time now. So a couple of days ago I pulled it apart and started prob…
... , is current leaking through the coil of the DC/DC converter ...Trying to repair a Speccy 48k - No PulsingI've had this machine for ages. I'd I've been putting off fixing it for some time now. So a couple of days ago I pulled it apart and started prob…
... them. But first, check the coil - if it has shorted turns ...Trying to repair a Speccy 48k - No PulsingI've had this machine for ages. I'd I've been putting off fixing it for some time now. So a couple of days ago I pulled it apart and started prob…
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A damaged coil sometimes has the coils looking ...Trying to repair a Speccy 48k - No PulsingI've had this machine for ages. I'd I've been putting off fixing it for some time now. So a couple of days ago I pulled it apart and started prob…
... /> I'll check out the coil and see if I can ...ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …
... circuitry (TR4, TR5 and the "coil" and associated components), modify this ...What is the oldest bit of machinery in regular use in your workplace?What's the oldest bit of machinery anyone has ever used regularly in the work place? Where I am now, very old building, mostly modern stuff. Previ…
... of thicknesses and then the coil of rope had to be ...Issue with TV signal + Inductor Coil (16K Issue 2 Speccy)Hello guys, I just got a 16K Issue 2 Speccy from eBay. It was sold as not working so I knew there would be some work needed before it's working ag…
... the transistor end of the coil will vary depending on a ... TR4 and TR5 and the coil are working correctly (which they ...Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …
... (C50 and C34?) near the coil at the top RHS of ...Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …
... replaced (the ones near the coil)
2) It gives ...128K Toastrack (Noisy video output)Hello there guys! Need all of yours guides and advices. Some time ago I bought a nice looking 128K from eBay (motherboard v6K) and put it aside for…
... have I discovered is: in 6U version (Amstrad ULA), ULA +5VCC ...128K Toastrack (Noisy video output)Hello there guys! Need all of yours guides and advices. Some time ago I bought a nice looking 128K from eBay (motherboard v6K) and put it aside for…
... signals became equal as on 6U. Continue searching around TEA2000.Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …
... these 2 caps nearest the coil . I have bought a new ...Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …
... (the 2 caps nearest the coil) does not seem to have ...48k Issue 6a Very sick indeed.Hi Guys. I have a 48k Issue 6a board that shows a white screen with grey border. The white screen has three black squares spaced equally on the le…
... hear any whine from the coil.[/quote]
The ... operating frequency, so the "coil" is not being pulsed ... these two supplies are the "coil" (actually a small transformer ... TR4, TR5 and the "coil". Also it is good ... secondary winding of the "coil" and cause it to ...48k Issue 6a Very sick indeed.Hi Guys. I have a 48k Issue 6a board that shows a white screen with grey border. The white screen has three black squares spaced equally on the le…
... I have swapped out the coil from another 48k board. I ... see any issues with this coil and checking the resistance using ...ZX Spectrum Issue 2 - 12V badHey there, I'm currently attempting to fix a ZX Spectrum issue 2 that I recieved. Overall the machine was generally working when I recieved it, bu…
... the secondary winding of the "coil" (actually a transformer) from the ...Spectrum plus started smoking.Yes, it did. And then it stopped working. Is there a likely problem that is fairly easily repairable? I'm very upset and don't know what to do. …
... it, my guess is the coil in the DC-DC circuitry ...Finally got myself a 128k toastrack too ! :)Hi all, I recently bought a vintage computers lot on eBay, just because there was a toastrack inside (and a better looking CPC 6128 with edge conne…
... ’s somewhat unusual for a 6U to be fitted with an ... />
Mine’s also a 6U, but has a Ferranti ULA ...Finally got myself a 128k toastrack too ! :)Hi all, I recently bought a vintage computers lot on eBay, just because there was a toastrack inside (and a better looking CPC 6128 with edge conne…
... ’s somewhat unusual for a 6U to be fitted with an ... />
Mine’s also a 6U, but has a Ferranti ULA ...Broken Issue 2 - likely culpritsI've just got hold of an issue 2 spectrum with an interesting layout (heatsink is vertical and goes down to the speaker, some variable resistors and …
... inductor for continuity of each coil and for shorts between them ...Broken Issue 2 - likely culpritsI've just got hold of an issue 2 spectrum with an interesting layout (heatsink is vertical and goes down to the speaker, some variable resistors and …
Coil seems fine
I removed both transistors and checked the voltage drops which all read 680mv so they seem within tolerance.I've made it, the big five oh!I don't normally make a big thing about this sort of thing, but I've hit the big mile stone of my life and wanted to shout it out... I'M FIFTY. …
... mates jump off the mortal coil than I have, sad but ...Can an emulator send and receive via a PC's USB port?Interesting little question arises out of a conversation today with my son who is taking a Rockwell automation course. His latest test was to write …
... reed switch can break the coil feed. All this is old ...help with issue 3 48k speccy after recap and new tr4 and tr5I have a 48K speccy that was not working. After recapping and replacing TR4 and TR5 it came back to life However after a short while running weird …
... .
TR4, TR5, the coil (actually a transformer) and associated ...what components normally get taken out if you plug+unplug a joystick interface in with the power onwhat components normally get taken out if you plug+unplug a joystick interface in with the power on? i remember doing this a few times when i had …
... and TR5, and maybe the coil (all part of the DC ...
