Larken Cartridge Schematic

Authors

Les Cottrell

Publication

ZXir QLive Alive!

Pub Details

ZXir QLive Alive! v12 n4Volume: 12 Issue: 4

Date

Winter 2002

Pages

11
See all articles from ZXir QLive Alive! v12 n4
Larken cartridge schematic (LKDOS EPROM and RAM, 74HCTLS00/74HCTLS32 gating, 74LS74 flip-flop with LED, diode-matrix address decode on A4-A13, bus signals BE, M1, MREQ, A14, A15, RFSH, WR, RD, A0-A3, D0-D7)
Larken cartridge schematic (LKDOS EPROM and RAM, 74HCTLS00/74HCTLS32 gating, 74LS74 flip-flop with LED, diode-matrix address decode on A4-A13, bus signals BE, M1, MREQ, A14, A15, RFSH, WR, RD, A0-A3, D0-D7)
C1 - 22  F, 10 V elec.     R5 - 5.1 KΩ, 2%            ICs
C2 - .01  F                R6 - 10 KΩ                 74HCTLS00
C3 - .047  F               R7 - 1 KΩ                  74HCTLS32
R1 - 1.8 KΩ                R8 - 4.7 KΩ                74LS74
R2 - 470 Ω                 Q1 - 2N2222A               M5165L-15 ram
R3 - 1.8 KΩ                D1 - marked KO 4 62        HY2764D-15 lkdos eprom
R4 - 1.8 KΩ                all others- 1N4148s

SINC-LINK

Tags

LARKEN Electronics TS 2068