Logenex SCFM-59 Audio-Video Single Channel Filter/Modulator

Logenex SCFM-59 Audio-Video Single Channel Filter/Modulator for sale Logenex SCFM-59 Vestigial Sideband Heterodyne Audio-Video Single Channel Filter/Modulator How to use modulator? Check the manual: http://files.d-tools.com/Visualizations/Approved/Logenex/Documents/Logenex_SCFM-18_Manual1.pdf Used but in good working condition If you see this ad means it is available Asking: $100(Comparable market price: $350 USD)