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Spectrum Composite video connections?Is it possible to modify a standard 48K spectrum to give composite video output? In my experience i have found the quality of the picture out of the…
... cause damage.
The ZTX range of transistors are designed ... -
Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…
... for sending me a few ZTX's ... they helped repair one ... -
Best replacement for ZTX650?What is the best replacement transistor for the obsolete ZTX650? I've read that TIP31 will do the trick. Is there a decent equivalent from the BC or …
2 SD 1207 is listed as replacement in the Jaeger-list.
ZTX 653 can also be used. -
128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…
... no success so I guess ZTX is ok.
Thanks for ... -
Dead Spectrum +Hi all, I've recently dug out my old Spectrum + with the idea of repairing it. When I last looked at it, when I was much younger, I was soldering a …
Anybody know what program can:Does anybody know of a PC program (or a "set") that can scan through a BASIC program, and replace "D*, D1 or D2" with two spaces. Then, save that sc…
... the original disks too - only 510 bytes of each sector are ...TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
... /> You shouldn't have ANY ZTX transistors fitted as standard on ...TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
... board doesn't have any ZTX transistors on it.
I ... .
I cannot find any ZTX transistors here (Greece) thets why ...TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
... board doesn't have any ZTX transistors on it.
I ... .
I cannot find any ZTX transistors here (Greece) thets why ... to ship you some free ZTX 650's via air mail ...TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
My book says that ZTX 214 is a low noise version of ZTX 213, so that should work well.Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…
Hi,
MPS 6727 in Q1 on a TC2048 issue 4b (replacing a ZTX 750)
Cheers.Game OptimisationBelow is a section of code Im using for movement enermy display and collision detect. What happens is that you move the sight with ,.qa and space do…
... CLS
20 GO SUB 510
40 GO SUB 280 ... +1
500 RETURN
510 LET a=10: LET b ...Game OptimisationBelow is a section of code Im using for movement enermy display and collision detect. What happens is that you move the sight with ,.qa and space do…
ZX Spectrum 128+ problemsHello!I recently purchased and got myself a spectrum 128+ from ebay.The item did not have an original power supply so i got a power supply of 9volts …
... the power supply cirquit (ZXT650 ZTX 213).
He is dropping ...Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…
ZTX 312 at TR1, TR2, TR3 and TR6 on an issue 3B board.St. Michael Micromasters: Computer GamesHi, The [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000988"]St. Michael Micromasters: Computer Games[/URL] book doesn't currently have a…
... x,0:next z
510 gosub 4000:print u$:for ... n(k)=k+j
510 if y(k)*n(k ...Computer SpacegamesBook Title: [B][URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000089"]Computer Spacegames[/URL][/B] Authors: [B]Daniel Isaaman & Jenny Tyler…
[CODE]
10 cls
20 print "starship take-off"
30 let g=int(rnd*20+1)
40 let w=int(rnd*40+1)
50 let r=g*w
60 print "gravity= ";g
70 print "type in force"
80 for c=1 to 10
90 input ...Weird Computer GamesBook Title: [B][URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000411"]Weird Computer Games[/URL][/B] Page: 3, Program: Tower of Terror - [U…
... g$(3)="headless axeman"
510 return
520 let r ...Weird Computer GamesBook Title: [B][URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000411"]Weird Computer Games[/URL][/B] Page: 3, Program: Tower of Terror - [U…
[CODE]
10 gosub 1570
20 restore:for i=1 to r:read d$:next i
30 cls:print "micro puzzle"
40 print"============"
50 print "you are ";d$
60 if r=20 and f(9)=0 then print "you are confronted by a large cat ...Spectrum more loved than C64It just occurred to me that the Spectrum must be more loved than the C64 these days. After all, it has been more than a year since an update was made…
... ,
Commodore 64 = 2,510,000 approx,
C64 = 8 ...Spectrum more loved than C64It just occurred to me that the Spectrum must be more loved than the C64 these days. After all, it has been more than a year since an update was made…
... ,
Commodore 64 = 2,510,000 approx,
C64 = 8 ...Spectrum more loved than C64It just occurred to me that the Spectrum must be more loved than the C64 these days. After all, it has been more than a year since an update was made…
... ,
Commodore 64 = 2,510,000 approx,
C64 = 8 ...Spectrum more loved than C64It just occurred to me that the Spectrum must be more loved than the C64 these days. After all, it has been more than a year since an update was made…
... ,
Commodore 64 = 2,510,000 approx,
C64 = 8 ...48K specs boots, but THEN blinking blocks!Of all ZX problems I have seen, the 'blinking blocks' is the most common... Today I picked up a 48K, it boots and THEN it locks filling the screen wi…
... it that TR4 is hosed (ZTX 650) its the most common ...Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …
... position to X,Y
510 LET PLOTx=PEEK 23677: LET ...