Overview

Capacitor replacement for vintage audio, early computers, and aging electronics

Electrolytic capacitors have a finite lifespan, and in equipment made before the mid-2000s that lifespan is often already up. Leaking caps cause gradual audio degradation, unpredictable power behavior, board corrosion, and eventual failure. Brentworth offers targeted recapping work on vintage audio equipment, early home computers, and other aging electronics where the capacitors are the problem — and where the hardware is worth doing the work properly.

Ready to start?

Use the intake form to describe the device, the fault, and the result you want. The more specific you are, the easier it is to give you a useful answer.

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Common Issues

What we fix

Vintage audio equipment with degraded sound, hum, or power instability

Amplifiers, receivers, tape decks, and other vintage audio gear rely on electrolytic capacitors in the power supply, signal path, and coupling stages. As those caps age they drift out of spec, dry out, or begin to leak. The symptoms vary — increased hum, channel imbalance, muddy low end, distortion under load, or a unit that powers on intermittently and eventually stops. A full recap brings the hardware back to its designed operating condition rather than masking the symptom.

Early home computers with power faults, video issues, or cap leakage damage

Commodore, Amiga, early Apple, and similar vintage computers were built with capacitors that are now decades past their expected service life. Leaking surface-mount caps are a common failure on Amiga motherboards in particular, and the damage can spread into board traces and nearby components if left long enough. Early recapping prevents the kind of corrosion damage that turns a straightforward job into a much harder recovery.

Other aging electronics where cap failure is driving the fault

Recapping is not limited to audio and computers. Vintage test equipment, early synthesizers, period-correct video gear, and other electronics from the same era share the same capacitor aging problem. If the hardware has value and the caps are the bottleneck, the job is worth reviewing.

Diagnostic approach

1.Inspect for visible leakage, bulging tops, corrosion trails, or residue around capacitors on the board.
2.Identify whether the failure symptom is consistent with capacitor drift — hum, instability, degraded output, intermittent power, or spreading corrosion.
3.Assess how far any leakage damage has spread and whether nearby traces or components need attention before recapping begins.
4.Confirm whether a targeted partial recap or a full board recap is the appropriate scope of work.

Repair workflow

•Replace aged or failed electrolytic capacitors with modern equivalents rated for the same or better specifications.
•Clean leakage residue and treat any corrosion damage before fitting new components.
•Address trace or pad damage caused by leaked electrolyte when the board condition requires it.
•Return the hardware in working condition with the underlying aging failure resolved, not just patched.

Examples

Repairs we take on

Amplifier or receiver with increased hum, channel imbalance, or distortion under load

Vintage audio unit that powers on intermittently or has developed power instability

Amiga or Commodore board with visibly leaking surface-mount capacitors

Early home computer with video artifacts, power faults, or corrosion around the caps

Synthesizer or vintage electronics with audio degradation tied to aging capacitors

Devices serviced

•Vintage amplifiers, receivers, and tape decks from the 1970s through 1990s
•Commodore, Amiga, early Apple, and similar home computers with aging capacitors
•Synthesizers, vintage video gear, and other period electronics with electrolytic cap failures

Ready to start?

Use the intake form to describe the device, the fault, and the result you want. The more specific you are, the easier it is to give you a useful answer.

Start Repair