DenTron Radio Company designed the GLA-1000 with efficiency in mind. Our engineers weren't only concerned with efficiency in terms of power input versus power output, they were also worried about offering an amplifier that is efficient space-wise, and dollar-wise. The result is a compact linear offering 10(X) Watts DC CW input and 1200 Watts input PEP SSB, a built-in power supply suitable for 117 or 234 V AC mains, complete metering of essential voltages and currents, frontpanel amplifier bypassing, a relative power output monitor, and modern styling. The GLA-1000 comes equipped with a tilt-up bail to increase air circulation and a super quiet forced air cooling system designed for trouble free operation. The high voltage power supply is all solid state, and there are four final tubes, DenTron D-50A pentodes. (DenTron offers replacement tube kits through its dealers worldwide). The GLA-1000 is compatible with almost any exciter or transceiver, and rear panel controls allow for relay switching and relative power output sensitivity. A maximum drive figure of 125 Watts is factory specification. Special circuitry required by FCC Type Acceptance regulations limit frequency coverage of the GLA-1000 to 80 through 15 meters, although proper modification by a licensed Amateur will allow 10 meter coverage. Most MARS frequencies just outside the Amateur Bands can be covered without modifica-