Peripherals

A few tests for a non-booting Disk II controller

A collection of simple (simplistic) tests for diagnosing a non-booting Disk II or A2 disk controller:
  • Monitor commands to test 6 of the 8 data latches in the 9334 chip
  • Monitor commands to load just one sector, then beep and break
  • Attach an LED to troubleshoot individual latches Q0 through Q3
  • Use a flashlight to "candle" circuit traces
  • Use wood or bamboo to scrape debris off the circuit board

Cassette Interface

Interfacing the Apple I with a cassette recorder.

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EPROM Board

A custom EPROM board for the Apple I.

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Vaporware - Power Computing Prototypes

For starters, its best to define vaporware. Quite frankly, vaporware is any announced product or technology that never makes it to market. Their are tons of items that fit into the vaporware cloud over the computer industry. The examples this week stem from Power Computing, the first licensed clone maker. They weren't really that secretive with their plans and made a few empty promises...

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Vaporware - Daystar Turbo 060

For starters, its best to define vaporware. Quite frankly, vaporware is any announced product or technology that never makes it to market. There are tons of items that fit into the vaporware cloud over the computer industry.

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Pro AudioSpectrum 16

A 16-bit sound system for the LC.

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PowerCD

An innovative CD drive by Apple's Mac LIke Things group.

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Cassie Keyboard connected to a Mac 512k

Using the interface box, the Cassie keyboard can be connected to a Mac 512k.

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Cassie Keyboard Prototype Interface Box

This interface box is an adapter which allows the Cassie keyboard to be used with a Mac 128k - Plus.

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Photos of the Cassie Keyboard

Glamour shots of the Cassie keyboard.

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