That little hiss in the preamp, or the power rail that never quite settles — it's usually a cap that's lost its capacitance. This 100µF, 25VDC low-ESR electrolytic is the drop-in fix. Handles 340 mA rms of ripple at 105°C and keeps impedance under 0.22 Ω at 20°C, so your signal stays clean. Polarized — check the stripe before you solder. Radial leads on standard pitch mean it lands in the same holes as what's currently failing. One part, one solder joint, problem gone
| brand | JAYCAR |
| capacitance | 100µF |
| voltage_rating | 25VDC |
| type | Low ESR Electrolytic Capacitor |
| ripple_current | 340 mA rms at 105°C, 100 kHz |
| impedance | 0.22 Ω max at 20°C, 100 kHz |
| polarity | Polarized |
| lead_style | Radial, standard pitch |
| load_life | 2,000–4,000 hours at 105°C |
| category | ELECTRONICS & COMPONENTS |
| subcategory | ELECTRONIC COMPONENTS |