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.


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