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Trying to repair a 128K (heatsink)I've bought another ZX Spectrum 128K (heatsink model), but unfortunately the last owner did not tell me it did not work.... Because this Speccy also…
... cause, and replaced the 100pF capacitor, measured both resistors and replaced ... />
So I need a replacement for the 7404, but can ... part?
Could the trim-capacitor be defective?? -
How do I know where my C compiler is putting my variable?Let me show you my code. I am writing a Z80 emulator (z80.c) which sets up a bit of shared memory for communication with another process. Well, I got…
... shared memory, and initialises a variable bl_ctrl to 1. It sleeps ... address spaces, so that the variable is not located in the ... -
Replacement for the ear and mic jack?Which replacement for the ear and mic jack from the ZX 48K fits? Or gives it the same jacks in new? Micky
Which replacement for the ear and mic jack from the ZX 48K fits? Or gives it the same jacks in new?
Micky -
I've got Disciple Replacement IC'sI've got a GAL replacement for IC 8, and IC 9. I had a broken Disciple and it turned out to be the PAL20L8 (IC 8 ). PAL's are hard to find so I've bo…
I've got a GAL replacement for IC 8, and IC ... bought some GAL's as replacement.
Anyway if anyone ... -
variable variable names with VAL$It's possible to make the RH-side variable names in a LET statement be themselves variable by using VAL$. Thus, if v$ holds the [b]name[/b] of anothe…
... make the RH-side variable names in a LET ... statement be themselves variable by using VAL$. Thus, ... [b]name[/b] of another variable, then:
[b]LET ... assign the content of the variable named in v$.
... make the LH-side variable name in a LET statement ... -
The best Explorer (file manager, not browser) replacement for Windows?There's a stack of utilities that claim to make Windows faster, or more reliable, or easier to use, but one type I've never really bothered with is t…
... really bothered with is the replacement file manager. These have always ... />
Does anyone use a replacement file manager? If so, which ... -
Question about QL composite modI am servicing my two QL machines (capacitor replacement, pcb and plastics cleaning, microdrives head cleaning, 7805 replacement etc). I already fin…
... servicing my two QL machines (capacitor replacement, pcb and plastics cleaning, microdrives ... head cleaning, 7805 replacement etc).
I ... RF modulator board replacement, with the known transistor-resistors-capacitor cirquit.
Replacement adapter needed for toycarA colleague fried up the american adapter for a toy car by placing a 110v adapter under 230v. Who knows a good replacement for it. Output = 7v DC 1…
A colleague fried up the american adapter for a toy car by placing a 110v adapter under 230v.
Who knows a good replacement for it.
Output = 7v DC 150 mA
Thanks!Variable resistorI have a problem with my speakers - the treble is much much too quiet in comparison to the bass. Or you could say, the bass is much to loud for the r…
... mending this by putting a variable resistor on the wire that ...Replacement Rubber Feet for the ZX SpectrumWe have now purchased some more replacement rubber feet for the rubber key Speccy (and power supply) See [url]http://www.sellmyretro.com/offer/detai…
We have now purchased some more replacement rubber feet for the rubber key Speccy (and power supply)
See [url]http://www.sellmyretro.com/offer/details/Set_of_Four_Rubber_Feet_for_Sinclair_ZX_Spectrum_%28rubber_Key%29_or_PSU-1964[/url]Indirect Variable AssignmentHere's another wacky routine. This allows assignment of values to variables where the source & destination variables can themselves be defined in var…
... />
So, for example, variable names can be constructed at ... it wrong will give "Undefined variable" or "Invalid argument" or ... 23698
;Indirect Variable Assignment
;PRINT USR indirect ... it must be a string variable or expression
; ...7805 cooler replacement?I have been looking into finding some replacement for the 7805, since that single component generate a lot of heat. Been looking at switching alterna…
... been looking into finding some replacement for the 7805, since that ...Replacement 48K MembranesCan anyone recommend a website where I can buy a replacement membrane for my 48K? The only one I know of is Sintech but they charge extortionate amou…
Can anyone recommend a website where I can buy a replacement membrane for my 48K? The only one I know of is Sintech but they charge extortionate amounts for postage. One that takes Maestro debit cards would be ideal too.
Thanks. :)Repairing Spectrum PSUHi everybody, In my ever-growing collection of Spectrum PSUs, I have an ever-growing sub-collection of dead Spectrum PSUs. Some of these can be rep…
... by putting in a new capacitor (hurrah!) - some can't (Boo ... Speccy PSU is just a capacitor, 4 diodes and an iron ... .
Does anyone know suitable replacement diodes?
Thanks ...Replacement Speaker?Can anyone suggest a suitable replacement speaker for my ZX+ ?
Can anyone suggest a suitable replacement speaker for my ZX+ ?Replacement Microdrive RollersI have a small supply of brand new replacement rubber rollers for the QL and ZX Microdrive - they sit on a spindle on the left hand side of the micro…
... small supply of brand new replacement rubber rollers for the QL ... ://www.sellmyretro.com/offer/details/Replacement-Sinclair-QL-%25-ZX-Microdrive ...Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…
... go with the added 100uF capacitor method.
However in ...Modern replacement PSU for +3This has probably been beaten to death in earlier threads.. but are there modern sized replacement PSUs for +3 available? My quick search did not res…
... .. but are there modern sized replacement PSUs for +3 available? My ...16K/48K Lower RAM (4116) replacement.You may want to read [URL="http://www.worldofspectrum.org/forums/showthread.php?t=37957"]this thread[/URL] for background information on the quest t…
... have found an SRAM based replacement for the lower RAM that ... the ZX Spectrum Lower RAM Replacement Module, pictured below:
TR1 and TR2 replacementCan anyone tell me the correct replacement part for these? This is for an Issue 4S btw
Can anyone tell me the correct replacement part for these? This is for an Issue 4S btwZX Spectrum upper RAM module (4532/4164 replacement)Following the [URL="http://zx.zigg.net/LRR/"]lower RAM replacement module[/URL], there have been quite a lot of requests for something similar for th…
... .zigg.net/LRR/"]lower RAM replacement module[/URL], there have been ... .zigg.net/LRR/"]lower RAM replacement module page[/URL] and place ... circuit as the lower RAM replacement and emulates dynamic RAM.
Upper RAM replacement module issues with the DivideI got my new upper ram replacement module from Zorn yesterday and seem to be having some issues. When the machine is without the Divide it boots up …
... got my new upper ram replacement module from Zorn yesterday and ... uses unusual timings that the replacement can't cope with.
Spectrum +2 power supply replacementI bought my first Spectrum the other day, a grey +2, but it seems that the power supply is busted (I've tested it with a multimeter and tried replaci…
... I'd rather get a replacement power supply.
From ... else has tried finding a replacement +2 PSU and knows another ...Spectrum +2 little help pleaseHi all, Firstly let me say, what an amazing site this is! So much incredible detail and information, created by what looks to be a very dedicated an…
... i'll be buying a replacement when i figure out where ... an issue on my ZX. Capacitor replacement solved.
By the ... ? Although i saw an ingenious replacement module [URL="http://zx.zigg ...Spectrum+ Issue 3b customization and repairHi everybody, I've got a Spectrum+ that shows exausted electrolytics capacitors issues such as poor colors on the screen and speaker noises. I was go…
... /> Red arrow shows an additional capacitor just over the two documented ... safe to proceed with capacitors replacement?
Thanks in advance ...Replacement Faceplates for ZX Microdrive UnitsHow many people would purchase replacement faceplates for the ZX Microdrive units at a cost of ?14 each? I was just wondering whether the market wou…
How many people would purchase replacement faceplates for the ZX Microdrive units at a cost of ?14 each?
I was just wondering whether the market would be big enough for 100 of these? Any less and the price would be prohibitive.Interface 1 ROM replacementHi All! I wrote down my story because I think that somebody might have similar problem and can find some ideas here how to overcome it... :) Recent…
... found any available drop in replacement of the 24 pin 8K ...analysing program variable usageIf I wanted to count the number of times each variable is referenced while a program is running (not the number of times each variable is referenced …
... ) to indicate a new variable; otherwise, update the relevant ... pointing to that new variable, so any subsequent references ... to that variable before any other variables ... introduced for each subsequent new variable. However, that might be ...+3 Tape/sound socket replacementI've just taken delivery of a rough round the edges but fully functional +3 (chocolate drive belt notwithstanding). However the tape/sound socket is …
... "]this[/URL] is an exact replacement? Can't make out if ...
