Hi Sueb,
Scroll further down the main page to the AV hardware classified ads section.
Read the rules first as they are quite strict. Also it will help with the sale if you include as much info as you can like, reason for selling, age of items, condition especially with things like the tubes on the PJ.
A big tip especially when selling something like a CRT PJ is to take a few pictures of the unit and the tubes.
Finally, not too many people are too keen to buy CRT's these days so be patient. If the unit is still installed maybe you could offer a demo?
Hope the tips come in handy and good luck,
Regards,
John.