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Alternative Spectrum 128 power supplyAre there other consoles/computers/appliances out there which had power supplies compatible with the original Spectrum 128 without any soldering work…
... /appliances out there which had power supplies compatible with the original ... a backup, and the original power supplies aren't so easy ... -
New Floppy Interface for the +2a/b (black case)Hello everybody! For a long time I wondered about the posibility of adding a FDD to the +2a/b (black). I knew it was possible; All the logic is alre…
... clone the +3 FFD controller circuit component by component which uses ... has a standard 4 pin power socket on board. I do ... not recommend to power floppy drives that uses the ... unless you have a +3 power supply. Most modern drives uses ... -
ZX81 Power SupplyI have a ZX81 with the original 0.7A power supply. I know that this has trouble running many add-ons and was seeking advice on a suitable replacement…
... with the original 0.7A power supply. I know that this ... -
power switch for +2 and + 3It's really annoying these machines don't have a power switch. Not even one on the power brick. Has anyone done a mod or know of anything other than …
It's really annoying these machines don't have a power switch. Not even one on the power brick. Has anyone done a mod or know of anything other than turning it off at the socket? -
I broke my 48k Speccy!!!!Hey guys, I am looking for some advice, I hope you can point me in the right direction. So, I went about replacing all the capacitors on my issue 4…
... specification, C44 was actually open circuit.
Anyway. Upon completing ... limited protection with my bench power supply.
The display ... -
ZX Spectrum+ video ? red on green problemThis is my first post on the forum, so let me introduce myself. I am retired for several years. For 30 years I have been a fan of the ZX Spectrum. I …
... /> I measured the power supply voltages at the relevant circuit points. All ... -
ZX Spectrum+ DivMMC EnJOY! Grundig 16" LCD TV and books.The Spectrum is in very good condition. Composite video mod. New mambrane (bought in November 2014 from rwap_software [url]http://www.sellmyretro.co…
... suggest no faults.
- Power on: 600 mA @ 9 V ... suggests 48K operation. All expected power supply voltages present.
- ... br /> - Removed D9. Tests open circuit.
- Fitted 1N4148 for D9 ... details/4043[/url]
4. Power Supply (UK plug)
5 ... -
48K Power Supply Outputs 13v instead of 9v.Hey, My local retro gaming shop gave me a broken 48k ZX spectrum power supply. The insulation at the strain relief had split open. "Easy fix" I th…
... a broken 48k ZX spectrum power supply. The insulation at the ... -
POWER and MAGIC game - controls?Hi. Thanks to ZX-Art site I found the "Power and Magic" game. https://www.youtube.com/watch?v=-wcmIkof8CU Does anybody know how to steer the…
... -Art site I found the "Power and Magic" game.
https ... -
Grey +2 - DOA and no power lightTook a punt on a grey +2 at the weekend to be a spare. It was "untested" although so were all my other +2's which are all fine. Tried to power th…
... fine.
Tried to power this one up with my ... modern PSU and nothing. No power light and the voltage reg ... -
Recovering a Sinclair ZX PrinterI have recently bought a Sinclair ZX printer, with the intent to bring it to working order. The motor runs, but I may have to replace some of the ca…
... the top case, which gives power to the moving print needle ... aluminium paper to close the circuit on itself, allowing the burn ... -
External Z80 CPUHi Looking for some advice if possible. Many years ago I had a plug-in board for a Spectrum 48k which had a couple of switches, a z80 CPU, and a S…
... toggling the switches (wwhile the power was off), could force the ... , but cannot find the original circuit and it's been so ... -
Voltages from Original ZX Power suppliesHi. I've recently picked up a few power supplies in boot sales, one for a ZX81 and another for the ZX Spectrum. For the first time ever I decided …
... recently picked up a few power supplies in boot sales, one ... change the capacitors inside the power supply?
Thanks for ... -
12V Rail - Spectrum 48kOkay - I may just be having a senior moment here, but I'm running out of ideas. I'm working on a Spectrum Issue 4S board,and have had to remove al…
... chips and work on the power inverter. I've re-capped ... other components in the inverter circuit. I've also double (triple ... -
ZX81 power supply. Ok to use with ZX80?Hey guys, Just a quick question, I've searched but can't find a definitive answer. I know the outputs from a ZX80 and ZX81 power supply are simila…
Hey guys, Just a quick question, I've searched but can't find a definitive answer.
I know the outputs from a ZX80 and ZX81 power supply are similar. No issues with using a ZX81 supply with ZX80? -
ZX 48K power plugHi! I'm a newbie, this is my first post. I have a ZX Spectrum 48K, which has been lying around for ages. Its psu lacks a plug. The Psu is 9v and 1…
... .
I measured the power jack on the Spectrum and ... while the diameter of the power jack is around 6mm.
Spectrum 128k +2 (grey) getting started..So, I just received a grey +2 in the mail. I don't know if it's in working condition, but that doesn't really matter. I opened it up and a small r…
... do the same RF modulator bypass hack as with a 48k ... on this?
The power brick I used with 48k ...Bizarre ZX Spectrum faults (also possibly relevant to Spectranet compatibility problems).I'm attempting to repair an issue 4A 48K ZX Spectrum and am encountering some very strange problems. For my own records I've given this computer the …
... clock input and a good power supply, then it should never ... /> - Tested diodes D1 - D8 in-circuit: no faults apparent.
- Tested ... working).
- Tested TR6 in-circuit: no faults apparent.
- Lifted ... , 12 V and 0 V power supply rails. I can't ...Power sub-station exploded near my place of work.Earlier this evening a power sub-station in Grantham, Lincolnshire across the road from where I was working exploded rather spectacularly, with flame…
Earlier this evening a power sub-station in Grantham, Lincolnshire ... was working in shock. The power was then to fail leaving ...Modifying Commodore datacorder's for Speccy use. Is it possible?Just wondering if it's possible to modify a Commodore datacorder for use with the Speccy, or if anyone has. My assumption is the output and input on …
... power one from a 6V supply, and mount internally an amplifier circuit ...48k Speccy died, resistors getting too hot to touchHi folks, With 2 days to go till an exhibition my trusty dual-boot 48K issue 3b that I made last year has given up the ghost and I'm not sure I ha…
... but tested out of circuit they're fine. Power is good, I ...Spectrum +2 / +3 PSU.Hi everyone, Does anyone happen to have the circuit for the power brick as supplied with the black +2 and +3 computers? Before anyone suggests …
... happen to have the circuit for the power brick as supplied with ...Short Circuit part 2 - impossible to complete?Author of this [url="https://www.youtube.com/watch?v=2A1IrBtWFyQ"]longplay[/url] says that part 2 of Short Circuit has no ending. Is it true? C64 ver…
Author of this [url="https://www.youtube.com/watch?v=2A1IrBtWFyQ"]longplay[/url] says that part 2 of Short Circuit has no ending. Is it true? C64 version has an ending and instruction for Speccy version says that part 2 can be completed.New WoS quiz. Name that power supply!Can anybody tell what this power supply unit is from? It's heavily engineered and was way to OTT for the use it was used for. It was used to power th…
Can anybody tell what this power supply unit is from? It' ... for. It was used to power the Teac floppy drive I ... used in a BBC computer power supply. Not a clue myself ...Spectrum 48k Power Supply?Guys - I've got a Spectrum 48k inbound from the UK. I want to scrounge a power supply to use when it arrives. What size jack did it use and what ar…
... . I want to scrounge a power supply to use when it ...Toastrack - faint monochrome displayHi all, I've got a Toastrack with a video issue on both RGB and RF. I get a faint monochrome screen: on one LCD display it is predominately white,…
... me a few times on power-on, so I'm now ... I've got a short circuit somewhere.
Any direction ...+2/+3 replacement power supplyI'm getting a black keyboarded +2, it has no power supply so I'm trying to source a possible equivalent if i cant get a genuine one, I know an atx s…
... keyboarded +2, it has no power supply so I'm trying ... .com/item-img/quad-output-power-supply-60W-5V-12V-5V ... .com/item-img/quad-output-power-supply-60W-5V-12V-5V ...SpecBAS 0.900 ReleasedAgainst my better judgement, here's 0.900. It's got lots and lots new, but mostly the new shiny is the editor. You can indent your code, you can e…
... inside a line
Short-circuit boolean evaluation for numeric AND ... a. Also for -=,*=,/= -and- %= (mod) ^= (power) &=,|=,~= (AND/OR/XOR)
circuit boolean evaluation.
Fixed circles ...Auto-fire circuit based on IC 555Greetings! Spanish magazine Microhobby once wrote an article explaining how the auto-fire circuit worked on a joystick and the interface requireme…
... explaining how the auto-fire circuit worked on a joystick and ... .
They suggested the following circuit everyone could build to put ...ZX power supply with white stickerHi all - 1st post here so greetings to one and all. A friend offered to sell me a ZX power supply, the standard black 9v one for the Spectrum, but…
... to sell me a ZX power supply, the standard black 9v ...
