Subj : Amplifier To : ALL From : bob klahn Date : Tue Mar 16 2010 10:12 pm This is the schematic for the old ICM SAX-1 RF amplifier. Don't ask me why, I was just playing around with it and decided to turn it into a text file. Reverse Engineered by me. I accept no responsibility for anyway the user may screw things up. + _______________| | | o = .01 | Link Output __|__ | o / / / | | ________ | | | ( | | | L1 ( R10K | = C1 ( | | | _ ( | |----| | ) (---------||---|---| PN5130 (2N5130) | _) (____ .001 | |--->| | Input | | |________ | Link | R3.3K | | | |_________| R470K = .01 | | | |_______| __|__ __|__ __|__ __|__ / / / / / / / / / / / / All wire crossings are connections. F mhz - C1pf - Link Turns White 2.3-3.4 220 4 Coil 3.2-4.8 100 4 4.5-6.8 47 4 Yellow 4.2-6.1 220 3 Coil 5.4-8.5 100 3 8.5-13 47 3 13-20 18 2 20-27 10 2 Aprox Inductace White Coil 11-77 uH Yellow Coil 3-8.5 uH Freq tuned by adjusting coil. High L at low Freq for each Cap. Low L at high Freq for each Cap. BOB KLAHN bob.klahn@sev.org http://home.toltbbs.com/bobklahn .... Cats have fur coats since they look positively stupid in windbreakers. * Silver Xpress V4.5/P [Reg] --- Platinum Xpress/Win/WINServer v3.0pr5a * Origin: FidoTel & QWK on the Web! www.fidotel.com (1:124/311) .