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New speccy modelThe 48k toastrack ;) [img]http://alistairtesting.no-ip.org/48k-toastrack.jpg[/img]
... I remember correctly, the 128K toastrack uses a 1 Amp 7805 ... the 97% yield the RECON regulator has. I mean the 7805 ... same as a 2A recon regulator (if there was one).
New speccy modelThe 48k toastrack ;) [img]http://alistairtesting.no-ip.org/48k-toastrack.jpg[/img]
... I remember correctly, the 128K toastrack uses a 1 Amp 7805 ... the 97% yield the RECON regulator has. I mean the 7805 ... same as a 2A recon regulator (if there was one).
1 Amp type used on Toastrack (actually on two of them ...Toastrack troubleI just received a toastrack off ebay that someone had bizarrely removed the modulator, no matter, ill go through RGB and replace that at some point, …
... ;583767]I just received a toastrack off ebay that someone had ...
Turned out the 5v regulator was sellotaped in place, what ... they were taped to the regulator, very crude but still, I ...Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…
... or RAM6, I DI before switching and EI after doing it ... 've used the "Spectrum 128K" (toastrack) setting in Spectaculator while I ...128k Toastrack repair advice needed..Hey all, Just got my second toast rack in a oddball deal when i visited a local farmer for some other second hand stuff. The 128 was sitting in a p…
... good TR4 from my other toastrack. this one measure 0.885 ... /> Placed it into the broken toastrack, powered on, and things were ... D19 (0.02)
The regulator still has +5 and +12 ...Misbehaving 128K toastrackI acquired a toastrack some time ago off ebay and it worked just nice up until recently. It arrived with no PSU or cables so I paired it with a grey …
... 7805 with a Recom voltage regulator, would 1.5A be enough ... provide enough power for your toastrack speccy and it will give ...Intermittent reset on 48K (issue 4S)I'be been fighting an intermittent selfreset the whole day. Changed ULA - did not help. Tested TR6 as i could and compared the reading with another…
... ;623869]You change the 7805 regulator? and/or use another power ... use 9Vdc 2.5A REGULATED switching power supply, so, the input ...Misbehaving 128K toastrackI acquired a toastrack some time ago off ebay and it worked just nice up until recently. It arrived with no PSU or cables so I paired it with a grey …
... wasn't sure about the regulator because the original external PSU ... might try one with the toastrack as well.
gtsamour ...48k PSU UpgradeCan anyone give the definitive word on a PSU upgrade (rather than just a replacement) for 48k machines? I'm thinking of adding at least an IDE inter…
... ever).[/QUOTE]
Remember most switching drop-in 7805 replacements are ... peripherals is [whatever is the regulator's rated [I]output[/I ... "]www.recom-power.com[/URL] (Switching Regulators -> 3-pin Through ...Replacing coil with other component?The purpose of the coil transformer, from what I gather in the schematics of the issue 2 spectrum, is to create 5V from about 9-10V. Would it not be …
... the 7805 with a suitable switching power regulator. Might then add some ...Spectrum30 Show in Cambridge, 08th-09th September 2012Hello Spectrum-fans, after many months of preparation we now proudly present what will be the biggest Spectrum venue of the last 20 years. We manage…
... have chosen a toastrack and use a small switching power supply ;)
Spectrum30 Show in Cambridge, 08th-09th September 2012Hello Spectrum-fans, after many months of preparation we now proudly present what will be the biggest Spectrum venue of the last 20 years. We manage…
... have chosen a toastrack and use a small switching power supply ;)
Spectrum30 Show in Cambridge, 08th-09th September 2012Hello Spectrum-fans, after many months of preparation we now proudly present what will be the biggest Spectrum venue of the last 20 years. We manage…
... have chosen a toastrack and use a small switching power supply ;)[/QUOTE ...7805 Regulator to RECOM modI really need to get shot of some of the 7805 regulators in some of my Spectrums. Latent heat is affecting keyboard membranes etc. As I am not a ha…
I replaced the 7805 regulators in my Spectrums with the 1.5 Amp version Recom regulator.
Works nice and cool.
I got them from RS online.
[url]http://nl.rs-online.com/web/p/switching-regulators/6727152/[/url]Replacing capacitors on a +3 PSUDoes anyone know what kind of PSU does the +2A/B +3 use? Is it a switching one? Judging from it's weight I don't think it must be.... Anyway, I just…
... +3 use? Is it a switching one? Judging from it's ... a transformer, and two linear regulator circuits (for the +5V and ... the psu is of the switching kind). I'm thinking of ... they are near the transformer / regulator / power transistor / heatsink.
[QUOTE ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... Disciple worked with the 128K toastrack", I presume that would have ... standard ('48k') ROM bank. So switching happens when this ROM bank ...A few mods I've done over the years to my Spec 128k+Hello, Was a bit bored and decided to upload a few pics and sound files from my Spectrum 128k+ I've been tinkering around with over the past several …
Thanks fog,
Switching voltage regulator is all DC volts...(or rather DC to DC and regulation), so no problem :)
tProject #1 : Speccy 128k+2 with diVide inside...Hi guys, I just have finished my Super Spectrum #1 The idea (I was thinking of that since 2007) was to fit an english grey +2 motherboard in a +2A…
... get rid of the 78L05 regulator which was getting hot while ... a mini toastrack now). And I finally changed the regulator with another ...Strange and faulty toastrackI just got hold of a toastrack, which is kind of strange. First of all, when I opened it, I spotted a socketed ULA and ROM, which is good, however, t…
... , I can see the LEDs switching on, but with very low ... your Spectrum, check the voltage regulator and beyond that.Strange and faulty toastrackI just got hold of a toastrack, which is kind of strange. First of all, when I opened it, I spotted a socketed ULA and ROM, which is good, however, t…
... just got hold of a toastrack, which is kind of strange ... , I can see the LEDs switching on, but with very low ...ZX Spectrum Pre-regulator DesignCarrying on from the "[URL="http://www.worldofspectrum.org/forums/showthread.php?t=44486"]Issue 2 crashes after about 30 mins[/URL]" thread... [QUOT…
... don't have a ZX toastrack :-( so don't know how ... the circuit of the Pre-regulator. For example, to use it ... work for a 128K ZX toastrack :smile:.
But I ...ZX spectrum 128K + 2 (Grey one :)Hi all, I'm trying to revive a dead ZX 128K +2 (the grey one). The regulator was damaged and seemed to be feeding 7.8Volts onto the pcb. Yikes ! I…
... supply from the 7805 voltage regulator). If TR8 detects that the ... emitter-collector. This causes the "switching" transistor, TR9 to deliver more ...The Spectrum Resuscitation ThreadKicking off this thread as a place where people who are fixing/restoring Spectrums (or indeed any other piece of related hardware) can show off their…
... conditions), performed a recap and regulator replacement.
I've ... worth pointing out that my toastrack is nice and clear using ...eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …
... the CSYNC as an RGB switching signal. Compare the temperature of ... AA battery for the blanking/switching pin.[/QUOTE]
... seen it uses a voltage regulator to obtain the signal to ... it will drive the FUNCTION SWITCHING input directly and is converted ...+2a double vision - uncommon problemHelloo - I was helped by Guesser on a previous occasion on a toastrack, so many thanks to him for that! Today's problem is the RGB display from a +2a…
... suspect the TV's are switching between RGB mode and composite ... probs with RGBcomp from my toastrack, so I don't see ...ZX Spectrum and add-on temperaturesImre Jakli from Hungary sent me some interesting pictures which I think are worth to share. These are about temperatures he measured with a modern to…
... complete the row with the "Toastrack" ULA temperature
[IMG]http ... cold Toastrack will be presented here.
The 7805 regulator ... 3 watts, and made the "Toastrack" completely cold.
[IMG] ... I've left the old regulator in it's place, so ...IF1bis StabilityI just thought I would start a different thread relating to the IF1bis, and leave the copyrighters to it elsewhere...:-P I've had mine for a few mon…
... . Lots of parasitic capacitance. The toastrack 128K machine is by far ... respect (and as such the toastrack makes a great machine for ... all the outputs are simultaneously switching and you end up bedevilled ...IF1bis StabilityI just thought I would start a different thread relating to the IF1bis, and leave the copyrighters to it elsewhere...:-P I've had mine for a few mon…
... Lots of parasitic capacitance. The toastrack 128K machine is by far ... respect (and as such the toastrack makes a great machine for ... all the outputs are simultaneously switching and you end up bedevilled ... of them being unused) CPLD, switching a maximum of 2 (two ...PSU Overvoltage?Going through a pile of 48k PSU's today, rewiring and fitting new plugs, testing each one as I go I came across one that outputs 14.85v, usually im g…
... design of the on board switching power circuit. The older design ... released by the 7805 voltage regulator.
[B][I]Mark ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... solve soon.
The 128K "toastrack" works perfectly with the disciple ... is that the disciple voltage regulator heats like a pentium, and ...
