The Heathkit HW7 Transceiver --------------------------------------------------------------------------- Description The HW7, although no longer made, is sometimes available on the second hand market. It is a direct conversion circuit and benefits from certain modifications to be anything like a serious rig. The description below is taken from the manual supplied with the kit, with thanks to Jerry, W1UI Transmitter: DC Power Input: 3 watts on 40 meters 2.5 watts on 20 meters 2 watts on 15 meters Frequency - control crystal or VFO Output impedance - 50 ohm unbalanced Sidetone - built-in Spurious and Harmonic levels - At least 25 db. down Receiver: Sensitivity - less than 1 microvolt provides a readable signal Selectivity - 1 kHz. at 6 db. down Type of reception - CW Audio output impedence - 1000 ohms nominal General: Frequency Coverage : 40 meters, 7.0 to 7.2 MHz. 20 meters - 14.0 to 14.2 MHz. 15 meters - 21.0 to 21.3 MHz. Frequency Stability - less than 100 Hz. drift after 10 minutes warmup. Power Required - 13 volts DC, 35 mA receive and 450 mA transmit. Dimensions - 9 1/4" wide x 8 1/2" deep x 4 1/4" high inc. knobs and feet Weight - 4 lbs. 8 oz. A picture will be included when I get a good colour one - G3YCC. --------------------------------------------------------------------------- Click here to return to first page