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The HW-8
80...15 meter QRP CW Transceiver came on the market in 1976 and was
produced until
1983. It
was the successor of the HW-7
that came on the market in
1972. The HW-7 covered the
40...15 meter bands but had
both VFO and crystal
transmit
provisions.
The HW-8
was an improvement over the HW-7 in terms of receiver sensitivity and
stability. Both the HW-7 and
the HW-8
had direct convertion
receivers. The HW-8
was then replaced by the HW-9.
The HW-9 had a superheterodyne
receiver
and covered the 80...10 meter
bands and was produced
until 1991.
When I got my HW-8 it was defective. The output transistor was broken and I replaced it with a 2N3553. I have repaired it and did the following modifications: It has an audio amplifier to drive a built in speaker or low impedance headphones. It has scale illumination. Further more modifications to come is DSB (or possibly SSB). I have also repainted it in the correct Heathkit color because a previous owner had painted it in an ugly (very far from Heathkit-green) color. The original dial knob was missing so I have mounted a slightly different knob instead. |