
( Manufacturer Part Number: GC-38 ), ( Model: POLYVARICON ), ( Type: Variable ), ( Country/region Of Manufacture: Japan )
The GC-38 Polyvaricon 400pF Capacitor is a crucial component in the tuning circuit of a crystal transistor radio. This capacitor, with a value of 400 picofarads (pF), is a variant of the Polyvaricon type, known for its superior performance and versatility.
The Polyvaricon capacitor is unique due to its ability to vary its capacitance in response to temperature changes. This property is particularly beneficial in radio tuning circuits, as it allows for fine-tuning of frequencies without the need for manual adjustments. The 400pF rating of this capacitor is suitable for medium-wave and short-wave radio bands, providing excellent frequency stability and tuning accuracy.
The GC-38 Capacitor is constructed using advanced materials and techniques. The Polyvaricon dielectric material ensures reliable performance over a wide temperature range, from -40 C to 85 C. The capacitor also features a robust and compact design, making it easy to integrate into the radio's tuning circuit.
In summary, the GC-38 400pF Polyvaricon Capacitor is a high-quality and versatile component for crystal transistor radio tuning circuits. Its ability to vary capacitance with temperature, combined with its 400pF rating, makes it an essential tool for achieving precise frequency tuning and maintaining radio performance under various temperature conditions.
Pros of buying a 400pf capacitor for a crystal transistor radio tuning circuit with a GC-38 polyvaricon:1. Improved tuning accuracy: A 400pf capacitor can help improve the tuning accuracy of the radio by providing a more stable and consistent capacitance value for the tuning circuit.
2. Better frequency response: The high capacitance value of the 400pf capacitor can help improve the frequency response of the radio, allowing it to pick up a wider range of frequencies.
3. Enhanced sound quality: By improving the tuning accuracy and frequency response, a 400pf capacitor can help enhance the sound quality of the radio, making it sound clearer and more well-defined.
Cons of buying a 400pf capacitor for a crystal transistor radio tuning circuit with a GC-38 polyvaricon:1. Potential compatibility issues: Depending on the specific design of the radio, a 400pf capacitor may not be compatible with the existing tuning circuit. It is important to check the manufacturer's specifications to ensure that the capacitor is the correct size and type for the radio.
2. Higher cost: A 400pf capacitor may be more expensive than a smaller capacitor, which could increase the overall cost of the repair or modification.
3. Potential risk of damage: If the radio is not properly modified or if the capacitor is not installed correctly, there is a risk of damaging the radio or causing it to malfunction.
Conclusion: A 400pf capacitor can improve the tuning accuracy, frequency response, and sound quality of a crystal transistor radio with a GC-38 polyvaricon. However, it is important to ensure that the capacitor is compatible with the radio and to install it correctly to avoid potential damage. If the cost and potential risks are acceptable, a 400pf capacitor can be a worthwhile investment to improve the performance of the radio.
Recommendation: If you are considering purchasing a 400pf capacitor for your crystal transistor radio with a GC-38 polyvaricon, I would recommend doing some research to ensure that it is the correct size and type for your radio and that you are comfortable with the potential risks and costs involved. If you are unsure, it may be a good idea to consult with a radio repair specialist or to seek advice from a knowledgeable hobbyist.
Wiring both sections in parallel gives you 400PF, a much bigger range than standard transistor radio type tuning capacitor. Comes with 5 screws 4 mounting and knob screw. Dimensions are.
38 height , excluding knob attachment post. Nominal range pf each section, with trimmers set to minimum add approximately 8pf at maximum setting square,. Set of two wide range, vintage, Japanese variable capacitor, dual section with trimmers.
Connections are made by screw terminals on front or back.
Parts taken directly from manufacturer packaging.