// PROJECTS

Repair Portfolio

A selection of completed jobs. Vintage audio and turntables are the specialty — every entry is real component-level work, not part swaps.

Marantz 2270 Receiver
Vintage Audio
2026

Marantz 2270 Receiver

Full restoration of a 1973 Marantz 2270 stereo receiver. Complete electrolytic recap, dial lamp replacement, bias and alignment. Sounds better than new.

Work performedFull electrolytic recap, lamp replacement, bias & alignment
Parts replaced47 electrolytic capacitors, 12 dial lamps
Turnaround9 days
OutcomeFull functionality restored, THD < 0.05%
Thorens TD-124 Turntable
Vintage Turntable
2026

Thorens TD-124 Turntable

Full mechanical restoration of a Thorens TD-124 idler-drive turntable. Motor bearing service, idler wheel replacement, platter balance, and cartridge alignment.

Work performedMotor bearing service, idler wheel, platter balance, cartridge align
Drive typeIdler drive
Turnaround7 days
OutcomeSpeed stable ±0.05%, wow & flutter 0.08%
Pioneer SX-1250 Receiver
Vintage Audio
2026

Pioneer SX-1250 Receiver

Full restoration of a Pioneer SX-1250 — one of the most powerful vintage receivers ever made. Complete recap, protection relay replacement, and bias calibration.

Work performedFull recap, protection relay, bias calibration
Output power160W per channel
Turnaround12 days
OutcomeFull power restored, protection circuit verified
Oberheim OB-Xa PSU Rebuild
Vintage Audio
2025

Oberheim OB-Xa PSU Rebuild

Rebuilt the power supply section on a 1982 Oberheim OB-Xa synthesizer. All original components sourced and replaced. Voices fully operational.

FaultIntermittent voice dropout, PSU voltage sag
Work performedFull PSU recap, voltage regulator replacement
Turnaround5 days
OutcomeAll 8 voices stable, PSU rails within spec
MacBook Pro Logic Board
Consumer
2025

MacBook Pro Logic Board

Water damage recovery on a 2019 MacBook Pro. Replaced corroded power management ICs, reflowed GPU, cleaned corrosion from board. Full functionality restored.

FaultWater ingress — no power, GPU artifacts
Work performedPMU replacement, GPU reflow, corrosion cleaning
Turnaround3 days
OutcomeFull functionality restored
Siemens S7 PLC Board
Industrial
2025

Siemens S7 PLC Board

Failed capacitors and damaged trace repair on a Siemens S7-300 PLC. Prevented a $12,000 replacement cost for the customer.

FaultIntermittent shutdown, failed bulk capacitors
Work performedCapacitor replacement, trace repair, load test
Turnaround2 days
OutcomeFully operational — $12k replacement avoided
Supermicro Server Board
Industrial
2025

Supermicro Server Board

Repaired a Supermicro X10 server board with a failed VRM section. Replaced MOSFETs and driver ICs. Saved critical production hardware from replacement.

FaultVRM failure — no POST, CPU power fault
Work performedMOSFET replacement, VRM driver IC, load test
Turnaround24 hours
OutcomeServer back in production
Tektronix 2465 Oscilloscope
PCB
2025

Tektronix 2465 Oscilloscope

Full service and calibration of a Tektronix 2465. Replaced all electrolytic capacitors, recalibrated all channels. Back to factory spec.

Work performedFull recap, channel calibration, timebase cal
Bandwidth350 MHz
Turnaround4 days
OutcomeAll channels within factory spec

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