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Schematics for loading amplifier?I'm interrested in making an external portable amplifier in order to be able to load speccy games using an mp3 player. I looked in the internet but c…
... capable of sufficient voltage output and current output. Sure, it's ... amplify very small signals and output not so small signals, but ... power amplifier for the loading input of the spectrum. It has ... an input impedance of about 1kOhm. The ... -
PSU differences for the n00bHi all, im the [B]n00b[/B] in question lol Sorry folks in advance for this cos its prolly been asked a million gazillion times! Im currently in po…
... specs:
Input: 240V AC, 50Hz
Output: 9V DC, 1 ... -
Schematics for loading amplifier?I'm interrested in making an external portable amplifier in order to be able to load speccy games using an mp3 player. I looked in the internet but c…
... (high gain, single supply, smooth output)? Heck, why not buy the ... power amplifier for the loading input of the spectrum. It has ... an input impedance of about 1kOhm. The ... -
Schematics for loading amplifier?I'm interrested in making an external portable amplifier in order to be able to load speccy games using an mp3 player. I looked in the internet but c…
... players output and the high impedance coil to the spectrums input you ... -
Schematics for loading amplifier?I'm interrested in making an external portable amplifier in order to be able to load speccy games using an mp3 player. I looked in the internet but c…
... deck and MIC is the output of the spectrum because it ... described direction. MIC used as input has much lower sensitivity (1 ... the EAR conector for input and for output and removed one 10 ... free for an additional video output. This worked also perfectly.
Loading from audio source via laptopI am having trouble loading my Spectrum tapes with my tape player - it is connected to my laptop, and I have tried the microphone and headphone socke…
... best input would be a line in jack. Because the output ... in but only a microphon input. So you should first ... is sensitive for the input that means you hear ... should connect to the tape output. The other cinch line ... only the right channel output not the left one ...Sinclair QL on a Commode 1702Anyone ever build a cable for the QL RGB to use on the Commode 1702? I built one that gives a mono image last night but can't figure out the pinout f…
... video output of the QL, the 1702 has a composite input socket ...Sinclair QL on a Commode 1702Anyone ever build a cable for the QL RGB to use on the Commode 1702? I built one that gives a mono image last night but can't figure out the pinout f…
... video output of the QL, the 1702 has a composite input socket ...Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…
... /> [CODE]Input: A:C = Dividend, DE = Divisor, HL = 0
Output: A ...Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…
... /> [CODE]Input: A:C = Dividend, DE = Divisor, HL = 0
Output: A ...Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…
... /> [CODE]Input: A:C = Dividend, DE = Divisor, HL = 0
Output: A ...Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…
[QUOTE=Paddy Coleman;466847]
[CODE]Input: A:C = Dividend, DE = Divisor, HL = 0
Output: A:C = Quotient, HL = Remainder [/CODE]
What does A:C mean?
[/QUOTE]
Register A and C, A = MSB, C = LSB.External Tape / Audio Input on Spectrum +2AEvening all, I've just picked up a Spectrum +2A and have been trying to load TZX files from my Mac into the Spectrum. I know the leads and methods …
... connected together as a MIC output.
For most solutions ... the +3 - audio out + tape input.
With the Spectrum ... input you need to be careful not to put too high output ... the Spectrums with external tape output, the +2 is always expecting ...Getting a ZX Spectrum to work in the USHello all, I'm terribly new to these forums but not to the use of the Spectrum. I have a few in my collection of old machines and one of them I am …
... ]
The Spectrum's output isn't proper PAL :-) (OK ... , because they are expecting an input that meets the PAL spec ...SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... /> * Full screen input e.g. INPUT AT y,x
* Input masks e ... /> * FRAME command to sync screen output
* MOVE command to set ...Schematics for loading amplifier?I'm interrested in making an external portable amplifier in order to be able to load speccy games using an mp3 player. I looked in the internet but c…
... one channel of the PCs output would be shorted. The PCs ... potential of destroying the ULA input I think!
Greets ...Printer to ZX SpectrumHi! I wonder is it possible to attach any other printer to rubber key ZX Spectrum than those thermal paper ones (i own one). I mean any dot matrix p…
... bits for signals /STROBE (output) and BUSY (input). I think, modification of ...save from 48k to PC in wav?I have looked around - in all the wrong places no doubt. I am trying to save a program from my Spectrum 48k to my PC. I am using a standard 3.5mm jac…
... connected to the Spectrum (MIC output), and the stereo jack to ... shoudn't use a MIC input in your sound card, but ... a LINE input. MIC inputs have automatic gain ... noise if a high impedance input is applied.128 port hardware patchReading the ULA book has reminded me of something. In The Spectrum Hardware Manual (Adrian Dickens) there is a hardware patch to allow free use of al…
... a table, determine what /IORQGE output should be for each combination ... logic would produce that output for all input values. Then replace NANDs ...128 port hardware patchReading the ULA book has reminded me of something. In The Spectrum Hardware Manual (Adrian Dickens) there is a hardware patch to allow free use of al…
... :
* MOSFETs have very high input impedance at the gate, usually ... as an input, and drains connected together for the output. When not ... the inputs have such high input impedance).
In your ...Schematic ErrorThere appears to be an error in the Schematic for the 128k +2A and +3 the error is present in both the redrawn TIF version and the original drawing …
... supports two input lines (pins 2 and 5) and two output lines ... is clearly an input, Pin 4 should be an output... so I ... 4, Pin 3 is an output at bit 6).
Pin ...+2a CompositeWhile faffing around with my +2a I did a down and dirty mod from pin 6 of the tea2000 straight to the modulator output bit like the womble hack for t…
... TEA2000 output has enough level to work with a composite video input ... something useful with the video output.Amstrad CPC - VIDEO OUTHello peepiekins, Erm, is there an arrangement of leads that'll allow me to... wait for it... ...turn the cable that usually plugs into the monitor…
... can choose between the mono output on composite or colour on ... output to a HardDrive recorder which has composite and S video input ... player. Now then, by mono output, do you mean green-screen ...Possible tape loading modI've got an idea for improving the reliability of loading from mp3 players or computer soundcards on the +3 or Black +2... It seems to work but I ju…
... only pins 2+3 as output without connecting ground (pin 1 ... insulate the (jack) input ground from the output signal which then will ...Possible tape loading modI've got an idea for improving the reliability of loading from mp3 players or computer soundcards on the +3 or Black +2... It seems to work but I ju…
I shot the headphone sound output of the laptop of my ... to earth - to the sound output of the laptop. Unfortunately the ... second) to the output of the transformer (= the input of the spectrum ...Logic sim for specHi guys, I was thinking about it and i was wondering, would it be good if i made a program that you enter details about a logic circuit, like what i…
... .e. use an output to drive an input form a logic gate ... gate -->logic gate ---> output
Logic gate---^
input and output states and pin connections. Then ... connect the last input to the first input you do 100000000010
The Clone Ranger (c)1987 Hometown SoftwareJust found this whilst sorting, unfortunately I haven't got anything set up to test it on at the moment, too many tapes everywhere :) I couldn't fin…
[QUOTE=Metalbrain;482443]maketzx input.wav output.tzx -fl100
seems ...Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... ; Input (voltage on RxD and DTR)
ld a,00000000b ; Output
out dx,al ; Output BYTE to UART
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... ; Input (voltage on RxD and DTR)
ld a,00000000b ; Output
out dx,al ; Output BYTE to UART
