Amplifier Research 350A400 RF Amplifier Repair and Calibration

$245.00 evaluation fee

🛡️ 90-Day Warranty ✓ Fee Credited to Repair ⚡ No Forms Needed

Get your Amplifier Research 350A400 RF repaired with certified accuracy and a 90-day warranty. We address output regulation failure and other common amplifier repair and calibration faults.

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📋 How It Works

Submit Request – Pay evaluation fee & provide equipment details
Ship to Us – Send your equipment to our Oregon facility
We Evaluate – Detailed diagnosis & repair estimate
Fee Credited – Your evaluation fee applies to repair cost
We Repair – Professional repair with 90-day warranty

🔧 Fast Turnaround: Most repairs are completed within 1–3 business days.
📏 Precision Calibration: NIST-traceable calibrations included for most repairs.
🛡️ Warranty: 90-day warranty on all repairs.
📝 Transparency: Detailed evaluation and repair estimate before work begins.

✓ Evaluation Fee Credited Toward Repair

This evaluation fee is applied as credit toward your final repair cost. After we evaluate your equipment, you'll receive a detailed estimate before any repair work begins.

Description

Amplifier Research 350A400 RF Amplifier Repair and Calibration

The Amplifier Research 350A400 RF Amplifier is an RF power amplifier – it takes a low-level input signal and boosts it to high output power across its frequency band. The output stage does the work, and it is where the heat and the wear concentrate.

The Amplifier Research 350A400 RF Amplifier is repaired at June Company by technicians who work on this class of instrument daily, for test engineers, production test departments, R&D laboratories, and equipment manufacturers. Every instrument is repaired at component level and verified against reference standards before it ships back, with the measured results documented.

Common Amplifier Research 350A400 RF Amplifier problems we fix

Output connector or cable damage.
Cooling fan or thermal shutdown.
Internal power supply faults.
GPIB, LAN, USB or remote-control faults – which breaks automated test sequences while the instrument still works from the front panel.
Display, keypad or front-panel faults.
Output power below rating – the amplifier no longer reaches its rated output, and the output stage is the usual cause.
Gain drifting or uneven across the band.
Spurious signals or noise on the output – invisible on the front panel but able to spoil a test.
Output stage or driver failure.
Protection circuits tripping the amplifier into shutdown.

FAQs

What if it is not economical to repair? We tell you in the quote. The evaluation is free and there is no obligation to proceed.

Output is unstable under a changing load. Repairable? Yes. That usually points at the regulation loop or the CV/CC crossover rather than the output devices themselves.

Every repair carries a 90-day parts-and-labor warranty, with a firm quote before any work begins. Email us or submit a service request.

Brand

Amplifier Research Repair

Amplifier Research power supplies and power analyzers are part of our regular repair and calibration work. Amplifier Research repairs by instrument type: Power Supply Repair and Power Analyzer Repair. Amplifier Research units on our list include the Amplifier Research 1000A225 RF Amplifier, Amplifier Research 1000A250 RF Amplifier and Amplifier Research 1000A400 RF Amplifier. Each power supply from Amplifier Research leaves with NIST-traceable calibration and a 90-day warranty. You approve a firm Amplifier Research quote before work begins.

Shipping & Returns

Packing your equipment. You are responsible for packaging equipment adequately for transit. We strongly recommend the original manufacturer’s case, or double-boxing with at least two inches of shock-absorbing material on all six sides. We return your equipment in the packaging it arrived in, so please send it in packaging that will survive the return trip as well. If your packaging is damaged or inadequate for the return, we will substitute suitable packaging and may charge the cost of materials.

Insurance. Equipment is not insured by June Company while in transit. We strongly recommend insuring your shipment for its full replacement value.

Risk of loss. Risk of loss remains with you until your equipment is received at our facility, and transfers back to you when your repaired unit is delivered to the carrier (F.O.B. shipping point). June Company is not responsible for equipment lost, delayed, misdelivered, or damaged in transit, in either direction.

Return label. A prepaid and preprinted return shipping label should be included with your shipment. If one is not included, we will provide one.

Transit damage. Damage occurring in transit is the responsibility of the carrier. It is not a warranty defect and is not covered by the 90-day repair warranty. Any claim must be filed by you with the carrier; we will supply photographs and documentation to support it at no charge.

Full details: Terms & Conditions, Section 6 · Return Policy