The best ham joke I know is 'your signal report is 59' closely followed by a request for you to send your name and location again
However, try these two:
The sex life of an electron
http://www.csd.uwo.ca/~magi/personal/humour/Computer_Audience/The%20Sex%20Life%20Of%20An%20Electron.htmlOr this little ditty sung to the tune of 'The Battle Hymn of the Republic'
OH, MINE EYES HAVE SEEN THE GLORY OF THE TELETYPE MACHINE,
IT IS PRINTING OUT THE MESSAGE TYPED UPON THE KEYS OF GREEN
IN A FAR DISTANT HAM SHACK WHERE I HAVE NEVER BEEN.
THE TONES ARE WARBLING ON.
RY RY HALLELUJAH
RY RY HALLELUJAH
RY RY HALLELUJAH
THE TONES ARE WARBLING ON
I HAVE PRINTED ON THE LOW BANDS WHERE THE QRM ENCAMPS
AND THE CROWDING OF THE SPECTRUM MY RECEPTION SORELY CRAMPS
WHERE I HAVE PRINTED SOLID COPY BY THE FLICKERING NEON LAMPS.
THE TONES ARE MARCHING ON.
RY RY HALLELUJAH
RY RY HALLELUJAH
RY RY HALLELUJAH
THE TONES ARE WARBLING ON
ON MY WALL IS PASTED COPY FROM SEATTLE TO NEW YORK
AND MY FRIENDS THEY GATHER ROUND ME AND THEY THINK I'V POPPED MY CORK
WHEN I'M GAZING THRU THE SHUTTERS OF THE SPEED ADJUSTING FORK,
WHILE THE TONES ARE WARBLING ON..
RY RY HALLELUJAH
RY RY HALLELUJAH
RY RY HALLELUJAH
THE TONES ARE WARBLING ON
ALL HAIL THEE OH PRINTER, PAINTED GREEN, BLACK OR GRAY
WITH THY BLACK SHELLED PLUG INSERTED IN A JACK MARKED "FSK"
LET US SIT BEFORE THE GREEN KEYS AND WE'LL THROW OUR MIKES AWAY.
WHILE THE TONES ARE MARCHING ON
RY RY HALLELUJAH
RY RY HALLELUJAH
RY RY HALLELUJAH
THE TONES ARE WARBLING ON
TONES ARE MARCHING ON