Used equipment. When and where you should or should not buy it.

Elmer or club member.

Your local repeater may have a traders net. Like our local Dixie Traders net Friday at 8pm eastern on EchoLink W4KEV-R and Allstar node 50015.

Ham-Fest or ham tailgate.

MTC Main Trading company

https://www.mtcradio.com/used-gear/

HRO Ham Radio Outlet

https://www.hamradio.com/used.cfm

E-Ham classifieds

https://www.eham.net/classifieds

R and L

http://www.randl.com/shop/catalog/used.php

QTH

https://swap.qth.com/

E-Bay if you are a gambler.