Here is the Jackson Harbor Press announcement, posted to QRP-L,
introducing an enhanced keyer chip for the Rock-Mite:
To: "Low Power Amateur Radio Discussion"
Subject: [AD] New keyer chip for Rock-Mite
Date: Friday, November 15, 2002 7:32 PM
Jackson Harbor Press is happy to present a new keyer chip for the Rock-Mite
series of transceivers from Small Wonder Labs. This new chip has a number of
features but the two most important:
- two 60 character, non-volatile memories
- optional pot speed control
One 10k pullup resistor (included) MUST be added to the Rock-Mite for the
RMK chip to function correctly. Also, two other resistors (included) and
a pot (NOT included) must be added for pot speed control.
The chip price is $4 plus $2 s/h in the USA - DX, add $3 to USA price.
For more information and to order, see the manual and other docs at:
Chuck Olson, WB9KZY
Jackson Harbor Press