Jeff.Miller@samba.acs.unc.edu (BBS Account) (09/21/90)
Tektronix model 1L5 spectrum analyzer plug in for sale, with manual. 10Hz-1 Mhz range. Fun for looking at modem signals, hooking to your stereo, pipe-organ work, etc. Add a mixer and scan the shortwave bands for numbers stations. Be aware it is analog though. You will need a high-persistence phosphor, chart recorder, or A/D converter for the low frequency stuff. If you are interested in signal above a few Khz any 500 series scope should be fine. $250.00. Maybe nogotiable. I may be interested in selling the 545B it lives in, too. --