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ZX Spectrum Composite output mod | Vrai's Retro Stuff
https://vrai.net/retro/?p=141
The Spectrum 16K, 48K and 48K+ generate a composite signal that is then modulated in to a PAL television signal on channel 36. This signal is video only as all audio is output via the internal speaker. Thus getting composite output from the Spectrum just requires the modulator to be removed and composite signal connected to the (formerly RF ...
ZX-AY External Stereo audio interface for all ZX Spectrum ...
https://www.bytedelight.com/?product=zx-ay-external-stereo-audio-interface-for-all-zx-spectrum-models
The ZX-AY has similar audio hardware as present inside any ZX Spectrum 128K model. Which includes the AY-3-8912 sound chip and BEEPer sound circuitry, but adds all of the above benefits. There is no need to modify your ZX Spectrum internally!
ZX Spectrum +2 Audio mod - YouTube
https://www.youtube.com/watch?v=LciiE9jy4rw
Had to reupload this, I deleted it in error. Anyway quick look at the audio mod that I did on my spectrum +2 (B issue). I worked this out on back of the wor...
ZX Spectrum 48K Mods (Older Vid - Rough Audio) - …
https://www.youtube.com/watch?v=hVHKFmhyee4
Much cooler, 96% efficient drop-in switching voltage regulator, modified heatsink for ULA, Composite video out with de-coupling capacitor, replaced all capac...
ZX Spectrum ROM mods - Baltazar Studios
https://baltazarstudios.com/zx-spectrum-rom-mods/
ZX Spectrum ROM mods. In this blog, I will show you how to interface an Atari-style joystick to the Altera DE1 FPGA board running a Spectrum implementation, how to change the ROM to enable you to input some game-cheat pokes, and a few games I eventually completed using this setup. ZX Spectrum implementation, the code and ideas are applicable to ...
Improving the audio quality on the +2A/+3, +2B, and +3B
https://zxnet.co.uk/spectrum/+3sound/
If you would like to improve your Spectrum's audio but find the prospect of performing this modification too daunting, Ian performs various mods and upgrades in addition to his repair service at the above link. Contact him for details! Return to ZX Spectrum stuff.
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