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RF AMPLIFIER REPAIR

Put the power
back in your signal.

DX Repair provides fault finding and repair for most Ameritron amplifiers plus other serviceable amateur radio amplifier makes and models.

High voltage, control, protection and RF output systems interact. A careful diagnosis matters before parts are replaced or adjustments are made.

Heathkit SB-200 linear amplifier illuminated at DX Repair
HEATHKIT SB-200 · RF AMPLIFIER REPAIR
MOST AMERITRON MODELSOTHER MAKES & MODELSCONTROL & POWER SYSTEMSRF BENCH TESTING
WHAT WE DO

Amplifier faults require the whole system

Tell us the exact model, the operating conditions when the fault appears and whether anyone has worked inside the amplifier previously.

01

Power supply

High-voltage supply, bias and related power faults evaluated with appropriate precautions.

02

Control and protection

Keying, relays, metering, interlocks and protection behavior checked against the reported symptom.

03

RF path

Input, output and switching sections investigated when drive, output or stability is not correct.

THE DX REPAIR APPROACH

RF amplifier repair for most makes and models

DX Repair works on most Ameritron amplifiers and evaluates equipment from Heathkit and other manufacturers as well. Acceptance is based on the specific model, condition, prior work, documentation and parts availability—not the name on the front panel.

Model-specific review

Construction, prior work and parts availability are considered before the amplifier is accepted.

Measured troubleshooting

The repair plan follows test results across the supply, control and RF sections.

Approval before work

The estimate explains the proposed repair before authorization is requested.

A CLEAR PATH

Before you ship an amplifier

01

Send the model

Include the exact model and serial information when available.

02

Describe the fault

Note drive level, band, mode, meter behavior, sounds and any protection events.

03

Disclose prior work

Tell us about modifications, tube changes or repairs already attempted.

04

Confirm packing

Amplifiers require careful packaging; wait for shipping instructions.

Amplifier acceptance depends on condition, safe transport, parts availability and the specific work required. Never open or troubleshoot high-voltage equipment unless you are qualified to do so.

GOOD QUESTIONS. CLEAR ANSWERS.

Before you send it.

Which amplifier makes and models do you repair?

We service most Ameritron amplifiers and other serviceable makes and models. Send the exact manufacturer, model and symptoms for review before shipping.

Should I ship tubes separately?

Do not assume a packing method. Confirm the model and follow the specific shipping instructions provided for that amplifier.

Can you diagnose low output?

Low output can involve several systems. Include the band, drive power, load, meter readings and when the symptom began.

Start with the amplifier model and symptom.

We will review the equipment before you arrange shipping.

Book an amplifier repair