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

Tell us the exact model, the operating conditions when the fault appears and whether anyone has worked inside the amplifier previously.
High-voltage supply, bias and related power faults evaluated with appropriate precautions.
Keying, relays, metering, interlocks and protection behavior checked against the reported symptom.
Input, output and switching sections investigated when drive, output or stability is not correct.
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.
Construction, prior work and parts availability are considered before the amplifier is accepted.
The repair plan follows test results across the supply, control and RF sections.
The estimate explains the proposed repair before authorization is requested.
Include the exact model and serial information when available.
Note drive level, band, mode, meter behavior, sounds and any protection events.
Tell us about modifications, tube changes or repairs already attempted.
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.
We service most Ameritron amplifiers and other serviceable makes and models. Send the exact manufacturer, model and symptoms for review before shipping.
Do not assume a packing method. Confirm the model and follow the specific shipping instructions provided for that amplifier.
Low output can involve several systems. Include the band, drive power, load, meter readings and when the symptom began.
We will review the equipment before you arrange shipping.