Title: Sold: Plate modulated amplifier with a pair of GS-35b's Post by: AB2EZ on April 29, 2012, 09:09:26 AM Please refer to: http://mysite.verizon.net/sdp2/id20.html AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
I am moving to a smaller house and downsizing my radio shack. For sale: Plate modulated amplifier that uses a pair of GS-35b's. Also works as a linear amplifier. Coils for 160 meters and 80 meters: AM: 40 watts rf input => 375 watts carrier output with the variac adjusted to produce 1700 volts on the finals @ 300 ma. Heising modulation using a QSC RMX1450 700W power amplifier (purchased new/like new) + a Peter Dahl 50H, 0.5A Heising choke (purchased new/like new). The modulation transformer is an Antec 1kW (power rating) toroidal step up transfromer... to match 8 ohms to 5000 ohms. Linear operation: full legal imit output (without any flattening) with the variac adjusted to produce 3000 volts on the finals. Includes: RF deck, power supply/bias deck, meter panel with 4 meters, plate transformer, Heising choke, Antec step-up / modulation transformer, QSC RMX 1450 amplifier, 240V variac, wooden rack cabinet, spare GS-35b, 8 spare 900uF 450V capacitors, DPDT antenna relay. Sell for much less than the original cost of parts: $1500.00. Pick-up only in Bernardsville NJ. Contact (directly, not via this board): AB2EZ at sdp2@verizon.net Stu |