October 10, 2011 - MegaPK-II keyer kit
March 28, 2023 - SSR option is now $7 due to parts price increases
January 2019: kit now includes a solder masked, silk screened circuit board
The MegaPK-II kit is the updated version of the original
The MegaPK-II has most of the features of the original and adds a number of
code practice modes which allow the operator to increase both receiving AND sending abilities.
pot or paddle speed control, 5 to 67 WPM
optional solid state relay (SSR) output to key nearly any rig (solid state, tube positive or tube negative kerying voltage)
board size: 1 x 1.5 inches
5 character ARRL / Signal Corps random code groups, send and receive practice
5 character pseudo-random code groups, send and receive practice
common English words and syllables for high speed review (from ARRL)
1 character hear/decode/think/send code practice
two 60 and one 120 character memories
OR optionally four 60 character memories
memories & settings retained without power (EEPROM)
Ultimatic or Iambic A or B keying modes
beacon mode, variable delay, up to 60 seconds
adjustable element weighting
variable sidetone frequency
command entry eliminates most menus
low standby power (about 1 ua with regulator)
a 5 Volt, pin compatible chip is available for PK-Basic, PK-2, PK-3 or PK-4 owners who want to upgrade
The kit (board plus board mounted parts, no documentation) is $12 + shipping/handling
Add another $7 for the SSR high voltage keying option to above prices
add $2 to the above prices for a micropower 3V voltage regulator option
MegaPK-II chip alone available for $4 + shipping/handling
Kit Documentation: download (Right click/save target as) and print the MegaPK-II kit
detailed building sequence ,
random code practice listings ,
schematic diagram and
all in Adobe Acrobat (.pdf) format.
Here are the
schematic diagram and
hookup diagram for the kit with the optional SSR and voltage regulator.
Here is a cheat sheet for memory recording and play from Dick Parks, K9LW.
Here is a Beacon quick start text file.
To purchase the MegaPK-II kit, print out a Kit
order form to figure your order manually
to let your browser do the math!
For larger quantity purchases, to combine with other items, for DX purchase price
or for any other questions, please send an email to me, Chuck Olson, WB9KZY at:
with your question