BrettHallen

Brett Hallen

84 designs

ZX81 Centronics

Projects for Sinclair computers (ZX80, ZX81, TS1000, TS1500, TS2068, Spectrum and clones)

BC558

74LS27

74LS32

74LS30

8255

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VIC 20 Internal 8KB RAM

Hardware & information for the VIC-20

74HCT04

74HCT138

74HCT30

74HCT157

6264 SRAM

BrettHallen

Internal 32KB RAM 8KB ROM

Hardware & information for the VIC-20

ATF16V8

74HCT138

62256

2864

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6502 to 65C02

Hardware & information for the VIC-20

6502 (SOCKET)

W65C02S

74HCT245

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VIC 20 Internal 32KB RAM

Hardware & information for the VIC-20

ATF16V8

74HCT138

62256

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Z88 Flash ROM

Projects for Sinclair computers (ZX80, ZX81, TS1000, TS1500, TS2068, Spectrum and clones)

SST39SF040

Z88_ROM

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VIC 20 Internal 8KB RAM

Hardware & information for the VIC-20

6264

GAL16V8

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VIC 20 Internal 8KB RAM Simple

Hardware & information for the VIC-20

6264 SRAM

74HCT04

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MFJ 1258

Hardware & information for the VIC-20

NE555P

2N3906

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VDriveZ88 Serial Converter SMD

Projects for Sinclair computers (ZX80, ZX81, TS1000, TS1500, TS2068, Spectrum and clones)

MAX232

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VDriveZ88 Serial Converter

Projects for Sinclair computers (ZX80, ZX81, TS1000, TS1500, TS2068, Spectrum and clones)

MAX232

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ZX80 Pixel Sync

Projects for Sinclair computers (ZX80, ZX81, TS1000, TS1500, TS2068, Spectrum and clones)

74LS74

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ZX81 EPROM

Projects for Sinclair computers (ZX80, ZX81, TS1000, TS1500, TS2068, Spectrum and clones)

27C256

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ZX81 RAM Upgrade

Projects for Sinclair computers (ZX80, ZX81, TS1000, TS1500, TS2068, Spectrum and clones)

32KB SRAM

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VIC 20 Internal 32KB RAM Decode

Hardware & information for the VIC-20

74LS138

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VIC 6560 Breakout

Hardware & information for the VIC-20

6560/6561

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VIC 6560 Breakout RevB

Hardware & information for the VIC-20

6560/6561

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Amstrad CPC664 Keyboard

Amstrad CPC related projects

BrettHallen

Amstrad CPC6128 Keyboard

Amstrad CPC related projects

BrettHallen

Amstrad Tactile 12mm Keyboard

Amstrad CPC related projects

BrettHallen

Amstrad Tactile 6mm Keyboard

Amstrad CPC related projects

BrettHallen