Key points
- 6P15P is a reliable beam power tetrode for audio amplifiers and RF equipment.
- Best 6P15P tubes include the military-grade 6P15P-EV for durability and performance.
- 6P15P is compatible with EL83 and SV83, with specific differences in applications and characteristics.
📈 6P15P Pinouts
Here is the pinout diagram information for the 6P15P vacuum tube:
Base Type:
- Noval (9-pin miniature)
Dimensions:
- Diameter: 22.5 mm
- Height: 77 mm (approximate max)
| Pin Number | Connection |
| 1 | Screen, Grid 3 (Suppressor Grid) |
| 2 | Grid 1 (Control Grid) |
| 3 | Cathode |
| 4 | Heater |
| 5 | Heater |
| 6 | Screen, Grid 3 (Suppressor Grid) |
| 7 | Anode (Plate) |
| 8 | Not Connected |
| 9 | Grid 2 (Screen Grid) |
🥇What Are the Best 6P15P Tubes?
The most sought-after and best-performing 6P15P tubes are:
6P15P-EV (6П15П-ЕВ)
Type: Extended-life, military-grade version.
Why: Higher durability, longer lifespan, better stability in audio and RF applications.
How to Spot: Marked with the “-ЕВ” suffix, typically with extra factory or military acceptance stamps.
USSR-Era 6P15P Tubes (1970s–1980s)
Why: Soviet-made tubes from this era, especially from plants like Reflector and Voskhod, are considered more reliable and better sounding compared to post-Soviet production.
Applications: Hi-fi amplifiers, DIY audio builds, vintage radio restorations.
Foton 6P15P Tubes
Why: Foton tubes are often regarded as premium Soviet production, with consistent quality control. Popular among audiophiles who prefer vintage NOS (New Old Stock) parts.
📊What Are The Best 6P15P Tube Equivalents?
The 6P15P tube is most often compared to Western equivalents like EL83 and SV83. While all three serve as small-signal power tetrodes, they have specific differences in electrical characteristics and typical applications that matter when choosing a replacement.
6P15P vs. EL83: Which One to Choose?
- Base Type: Both use a 9-pin Noval base—direct socket compatibility.
- Electrical Characteristics: EL83 has slightly lower maximum plate dissipation and is more commonly found in television circuits, while 6P15P handles higher frequencies and is favored in RF and audio applications.
- Durability: 6P15P, especially in its EV variant, is known for military-grade durability, while EL83 was produced primarily for consumer electronics.
- Application: EL83 is typically found in European TVs and radio gear, while 6P15P is more versatile, used in both Soviet hi-fi systems and radio-frequency amplifiers.
6P15P vs. SV83: Are They Interchangeable?
- Base Type: Both have a 9-pin Noval base, allowing direct swaps in compatible circuits.
- Electrical Characteristics: SV83 is essentially a high-spec version of 6P15P, with carefully controlled manufacturing for audio performance. SV83 often has slightly tighter tolerances and improved linearity.
- Durability: SV83 is manufactured for audiophile-grade products and marketed under brands like Svetlana, offering higher consistency. 6P15P-EV is still the better choice in extreme-use scenarios.
- Application: SV83 is used in boutique tube amps and audio products, while 6P15P is common in DIY and vintage Soviet audio projects.
🎚️6P15P tube Datasheet:
| Parameter | Value |
| Tube Type | Beam Power Tetrode |
| Country of Origin | USSR (Soviet Union) |
| Base Type | Noval (9-pin Miniature) |
| Filament Voltage (Uf) | 6.3 V |
| Filament Current (If) | 760 mA |
| Plate Voltage (Va max) | 250 V |
| Plate Dissipation (Pa) | 12 W |
| Screen Grid Voltage (Vs) | 250 V |
| Control Grid Voltage (Vg) | -16 V |
| Transconductance (S) | 11 mA/V |
| Output Power (SE) | ~4.5–5 W |
| Application | Audio amplifiers, RF circuits, TV vertical deflection stages |
📊What are the Most Popular 6P15P Tube Amplifiers?
The 6P15P tube is a favorite among DIY audio builders and vintage amplifier enthusiasts due to its tonal clarity and reliability. While there are few large-scale commercial amplifiers using 6P15P, it is widely used in DIY and custom boutique designs. The most popular types include:
DIY 6P15P Single-Ended Amplifiers (SE)
- Type: Single-Ended, Class A
- Why Popular: Simple circuit, rich midrange sound, ideal for small room hi-fi systems and efficient speakers.
- Typical Output Power: 4–5 W per channel
- Common Pairing: Often combined with 6N1P or 6N2P as a driver stage.
DIY 6P15P Push-Pull Amplifiers
- Type: Push-Pull Class AB
- Why Popular: Delivers more power (up to 10–12 W per channel), suitable for bookshelf or full-range speakers.
- Sound Profile: Strong bass, cleaner midrange than single-ended designs.
Commercial Boutique Amplifiers Featuring 6P15P
- Examples:
- Custom Russian-built tube amps using 6P15P or SV83 (related equivalent).
- Some Chinese or Eastern European small-batch manufacturers incorporate 6P15P in integrated amplifier designs aimed at budget audiophile markets.
- Why Popular: Affordable, warm tube tone without the price of higher-end EL84 or 6H30-based amps.
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