U20198 Used Drake L7 HF Linear Amplifier w/ Upgraded Harbach Power Supply Mods Discount for Local Pickup

U20198 Used Drake L7 HF Linear Amplifier w/ Upgraded Harbach Power Supply

The Drake L7 is a legendary HF linear amplifier prized for its rugged build quality and heavy-duty performance. Powered by a pair of Eimac 3-500Z high-mu power triodes, this unit provides the muscle needed to push a clean, powerful signal across the HF bands.

This particular unit is exceptionally clean overall. The matching heavy-duty power supply has already been upgraded with the sought-after Harbach Electronics Filter Board, replacing aging original capacitors and diodes to ensure superior reliability, lower ripple, and long-term voltage stability.

Exceptional cosmetic shape that is nearly impossible to duplicate. This amplifier is the nicest, cleanest L7 that you will find. Full output, very nice

Condition Details

• Cosmetic Status: Very clean overall appearance across both the main unit faceplate, meters, and knobs.

• Power Supply Housing: Shows minor, light spots of surface discoloration/patina on the metal casing consistent with age (detailed in listing photos).

• Operational Notes: Meter faceplates, control dials, switches, and rear chassis connectors are intact and well-preserved.

Key Features

• Dual Eimac 3-500Z Triodes: Driven by two reliable zero-bias triode tubes for high efficiency and linear power output.

• 160 through 15 Meter HF Coverage: Full coverage across the 160M, 80M, 40M, 20M, and 15M amateur bands (with 10M mod capabilities typical for Drake gear).

• Upgraded Harbach Power Supply: Fitted with a modern Harbach replacement filter board for safer operation, improved filtering, and reliable high-voltage supply.

• Dual Illumination Meters: Dedicated meters for monitoring RF Watts, Plate Amperes, Grid Current ($I_g$), High Voltage ($E_p$), Forward Power, and Reflected Power.

• Selectable Operating Modes: Front panel toggles between CW/Tune and SSB modes for optimized plate voltage tuning.

• Heavy-Duty Cooling: Rear-mounted high-cfm fan system ensures adequate airflow across the power tubes.

What’s Included

• Drake L7 HF Linear Amplifier Unit

• External Matching Drake L7 Heavy-Duty Power Supply (Harbach Upgraded)

• Attached Heavy-Duty AC Power Cable

• Printed Operator's Manual

• $350 Discount for local pickup in Paris Texas

Warranty

Comes with our 90-Day Warranty!

S/N: Amp-3141 / PS-2100

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