SOVIET MP40A Germanium Transistor Boxed 100PCS OC71 OC75 OC76 2N45 2N215

( Brand: Soviet ), ( Manufacturer Part Number: MP40A ), ( Country/region Of Manufacture: Ukraine )

Review SOVIET 100pcs Germanium Transistor Pnp Fuzz Face Boxed

Soviet MP40A 100-piece Set of Germanium Transistors - Includes OC71, OC75, OC76, 2N45, and 2N215

This Soviet MP40A transistor set is a treasure trove for vintage electronics enthusiasts and hobbyists. This collection includes 100 individually packaged germanium transistors, each embodying the rich history of Soviet microelectronics. The set comprises five distinct types of transistors: OC71, OC75, OC76, 2N45, and 2N215.

1. OC71: The OC71 is a NPN general-purpose germanium transistor. It is widely used for various applications such as amplifiers, oscillators, and switches. With a collector-emitter voltage (VCE) of approximately 3-4V and a current gain (hFE) of around 150-200, it is an indispensable component for many classic electronic projects.

2. OC75: The OC75 is an NPN silicon-controlled rectifier (SCR) with a germanium base. It functions as a triggerable switch, often used in power supplies, ignition systems, and other applications that require high current switching. The OC75 features a trigger voltage of around 1V and a load current capacity of up to 1 Ampere.

3. OC76: The OC76 is a PNP germanium transistor commonly used as a switch or an emitter follower. It has a collector-emitter voltage (VCE) of approximately 3-4V and a current gain (hFE) of around 20-50. This versatile transistor can be employed in various circuits, including audio amplifiers, switching circuits, and voltage controllers.

4. 2N45: The 2N45 is a PNP germanium transistor commonly used in switching applications. It has a collector-emitter voltage (VCE) of approximately 3-4V and a current gain (hFE) of around 20-30. This transistor is also suitable for use in amplifier circuits and voltage controllers.

5. 2N215: The 2N215 is a NPN germanium transistor with a high current gain (hFE) of around 300-500. It is commonly used in power amplifiers, audio circuits, and other applications that require high current handling capability. This transistor is an excellent choice for those seeking to build high-performance vintage audio equipment.

Each transistor is individually packaged and encased in protective paper sleeves. The transistors are housed in a sturdy, reusable cardboard box, ensuring their safe transport and storage. These transistors offer a unique blend of history, character, and functionality, making them a must-have for any serious electronics enthusiast or collector.

The Soviet MP40A 100pcs germanium transistor set, which includes OC71, OC75, OC76, 2N45, and 2N215 transistors, can be an intriguing purchase for electronics hobbyists and collectors. Let's explore the potential advantages and disadvantages of buying this lot:

1. Historical Significance: The germanium transistors in this lot were produced during the Soviet era, providing a unique historical perspective for collectors and hobbyists.

2. Vintage Appeal: The boxed set has a vintage appeal, which can add to the overall aesthetic value for those interested in vintage technology.

3. Unique Sound Characteristics: Germanium transistors may offer unique sound characteristics when used in various audio applications, making them a desirable option for audio enthusiasts.

4. Learning Experience: Working with vintage transistors can provide an opportunity to learn about the history of transistor technology and gain hands-on experience in soldering and troubleshooting.

5. Potential Cost Savings: Buying a large set of transistors in bulk can lead to cost savings, as individual transistors can be more expensive when purchased separately.

1. Potential Performance Issues: Germanium transistors may exhibit inconsistent performance compared to modern silicon transistors, leading to potential issues in circuit design and reliability.

2. Limited Availability: The availability of Soviet-produced germanium transistors is limited compared to modern transistors, making it a challenge to source replacements if needed.

3. Higher Maintenance: Vintage transistors may require more maintenance and care, such as proper storage conditions and careful handling to prevent damage.

4. Compatibility: The transistors in this set may not be suitable for all modern electronic applications, limiting their overall usefulness.

The Soviet MP40A 100pcs germanium transistor set can be an intriguing addition to any electronics hobbyist's or collector's collection. Its historical significance, vintage appeal, and potential cost savings make it an attractive purchase. However, potential performance issues, limited availability, higher maintenance, and compatibility concerns should be carefully considered before making a purchase. Ultimately, the decision to buy this set depends on individual interests, experience level, and specific application requirements.

If you are an electronics hobbyist or collector with a strong interest in vintage technology and a solid understanding of germanium transistor properties, the Soviet MP40A 100pcs germanium transistor set could be an excellent acquisition for your collection. However, if you are looking for transistors for modern applications or require consistent performance, it may be wiser to opt for modern silicon transistors instead.

Details:

2 pcs RCA transistor 2N270 New Old Stock sealed 1960.

part #: mp40a prices

• $9.90-$10.00

specifications vintaelec:

• brand: Soviet
• mpn: Mp40a
• country/region of manufacture: Ukraine

offer vintaelec:

• quantity: 1
• best offers: True
• sold: 0
• started: August 3, 2025
• availability: In Stock
• options: Ship-to-home

shipping vintaelec:

• carrier: USPS
• transit: 4-9 Days
• service: USPS Ground Advantage
• cost: $7.85
• type: Calculated
• class: Standard

general vintaelec:

• Consumer Electronics > Vintage Electronics > Other Vintage Electronics
• condition: New

payments vintaelec:

• other
• wallet: Paypal
• credit card: Diners-club

returns vintaelec:

• policy: Returns Accepted
• paid by: Buyer
• method: Money back
• time: 14 Days

seller vintaelec:

• rating: 100.0%
• city: Peoria, Illinois
• # reviews: 777