Overview
The ERO KP1832 0.075uF 800V capacitor is a genuine polypropylene film/foil axial component manufactured by Roederstein in Germany. This discontinued model features non-metallized construction, distinguishing it from standard MKP (metallized polypropylene) capacitors and delivering superior performance in audio-frequency applications. With exact part number 375/152-1, this unit represents a niche but highly valued component in vintage electronics restoration and tube amplifier design.
Key Features
- Film/Foil Construction: Genuine polypropylene film with foil electrodes—not metallized—for transparent audio performance and minimal noise injection.
- High-Voltage Rating: 800 volts DC working voltage supports demanding audio coupling and signal-path applications.
- Tight Tolerance: 2% capacitive accuracy meets precision audio circuit requirements.
- Discontinued Part: No longer in production; units available are new old stock (NOS), making availability limited.
- Axial Lead Configuration: 20mm x 30mm package with tinned wire leads for easy through-hole installation.
Technical Specifications
| Capacitance | 0.075 µF (75 nF) |
| Voltage Rating | 800 V DC |
| Tolerance | ±2% |
| Construction Type | Polypropylene Film / Foil (non-metallized) |
| Dielectric Material | Polypropylene |
| Lead Style | Axial, tinned wire |
| Package Dimensions | 20 mm × 30 mm (excluding leads) |
| Manufacturer | Roederstein (ERO brand), Germany |
| Status | Discontinued / No longer manufactured |
| Part Number | KP1832 / 375/152-1 |
Typical Applications
- High-voltage audio coupling in tube amplifiers and vintage preamps
- Bypass capacitors in audio signal paths and tube equipment
- Vintage radio and audio electronics restoration
- Premium audio tone shaping in crossovers and filter networks
- High-frequency coupling in audiophile-grade audio circuits
Compatibility & Replacements
Compatible With
- Tube amplifier and preamplifier circuits requiring 800V capacitors
- Vintage audio equipment (1950s–1980s tube radios, amplifiers)
- High-voltage signal path applications in audio electronics
- Hand-wired point-to-point and PCB-based circuits
- Any vintage audio design where non-metallized film capacitors are preferred
Replaces / Drop-In Replacement For
- Other 0.075 µF / 800V polypropylene capacitors in equivalent package sizes
- May replace some 0.068 µF and 0.082 µF ratings in non-critical applications (verify circuit tolerance requirements)
- Direct equivalent for original ERO KP1832 part numbers across all voltage/tolerance variants
Works With
- Point-to-point tube amplifier wiring
- Through-hole PCB designs and breadboard prototyping
- Hand-wired vintage audio equipment
- Standard soldering tools and hand-assembly techniques
- Vintage electronics restoration and tube amp modification circuits
