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The Cobra 142 GTL was a fully capable AM/SSB [[Citizens Band radio]] base station that competed with the Robyn 520D and the President Washington. It is considered one of the best base stations ever made during the period. Cobra made a model one step higher known as the 2000 GTL. The Cobra 142 GTL was a fully capable AM/SSB [[Citizens Band radio]] base station introduced in 1977 that competed with the Robyn 520D and the President Washington. It is considered one of the best base stations ever made during the period. Cobra made a model one step higher known as the 2000 GTL. The Cobra 2000 GTL uses a dual conversion receiver on AM and a single conversion on sideband. The 142 GTL uses a single conversion receiver on both AM and sideband. It is easier to turn up the power on the 142 GTL than it is on the 2000 GTL. The 142 GTL also has the MB-8719 PLL already installed. The 2000 GTL ha a built-in frequency counter.== Channels Expanded ==== Modification == === Channels Expanded ====== Power Modification ===There is a variable voltage potentiometer on the power supply that will allow varying the voltage up to 16 volts. It is set at the factory for 13.8 volts. It can be tuned up to 14.8 volts to will allow for more output power without damaging the radio.* capable of 18 watts peak power=== Frequency Counter ===Add a "constant readout" frequency counter externally.