REPLACEMENT APPLE II PLUS KEYBOARD ENCODER
Modern Replacement for the Keyboard Encoder Daughter Board
NON-RFI, RFI or DATANETICS with Daughter PCB
Configurable via keyboard Input
Lower Case support via upgrade
Apple I connection socket and support
$40 plus shipping, Upgrade $10 more
Encoder II Plus – Apple II Plus Instructions
The Encoder ][ Plus operates identically to the original encoder with some additional features which can be controlled by the following commands.
CTRL-RESET or RESET will reset the computer based on how the encoder is configured CTRL-SHIFT-RESET will toggle between the need to press CTRL-RESET or only RESET to reset the machine. The encoder will beep indicating that a change has been made. This change will persist through power cycles.
SHIFT-RESET will send the CLRSCR command to an Apple 1 connected through the Apple 1 connector on the encoder board.
REPT-RESET will toggle between upper and lowercase input. The encoder will beep to indicate the change.
The encoder has a built-in delay between scans of the keyboard to prevent double input of characters for keys that may have intermittent connection. The default delay period is 10ms. This can be adjusted by pressing and holding down the RESET button while pressing and releasing a number from 1 to 9. Each number increases the delay by 5ms. The lowest setting (1) is 5ms, and the highest (9) is 45ms. If you are getting double characters, increase the delay until they go away. If you are unable to eliminate the double characters even at setting 9, your keyboard probably needs serviced. This setting will persist through power cycles, so it only needs to be changed when necessary.
CTRL-SHIFT-REPT-RESET will play a little song
Lower Case on the Apple ][
When the encoder is in upper case mode (default), it will behave identically to the original encoder.
Pressing the SHIFT key will allow you enter the special characters shared by some of the letter keys such as @ and ^.
When you enter the lowercase mode using the REPT-RESET sequence, the characters will be lower case. Pressing the SHIFT key will enter the uppercase version of the letter keys, and for all other keys will behave the same in both upper and lowercase modes. To enter the special characters shared by the letter keys while in the lowercase mode you can press CTRL-SHIFT and the letter with the special key. For example, in lower case a SHIFT-P will produce an uppercase P not an @ symbol, but CTRL-SHIFT-P will produce the @ symbol.
To display the lowercase characters, you must have a lowercase character generator ROM installed in your Apple ][ or ][ Plus motherboard. In addition, if you wish to enter lower case characters directly in DOS or BASIC, you will need a modified F8 ROM. Any program that does input by scanning the keyboard directly will be able to input lower case without the need for the modified F8 ROM.
Lee Shreeve recommended this to me and I have reviewed it! It works wonderfully for my Apple-1 especially since it can do the CLRSCR and with the Apple ll, it has no issues either. What a great drop-in replacement!
Nice! I wonder if the designers have ever looked at the vintage Videx Keyboard Enhancer? Might give some ideas for even more features.
Are there any details about how this can be purchased?
Just send a PM to puerto06, that's how I purchased mine.
Note: I also ordered an additional special ribbon cable from puerto06 to use with my Apple-1 and this Encoder II Plus daughter board.