ECSiNG 4X Tuning Knob String Tension Spring 19mmx4.25mmx0.65mm Steel for Vintage Radio Tuner

Made with high-elasticity spring steel, it is fatigue-resistant and deformation-resistant, ensuring that the knob maintains constant tension even during long-term operation. Dimensions: 19 mm overall length, 4.25 mm outer diameter, 0.65 mm wire diameter. Specifically designed for old-fashioned radio tuning mechanisms, offering strong compatibility. Applications: Widely applicable to old-fashioned radios and shortwave receivers with tuning knobs; can directly replace old tension springs. Function and Installation: Provides just the right amount of rebound force for precise positioning and a smooth feel; the hooks at both ends allow for easy installation with a simple press and snap. Packaging: 4 pieces per bag, ample quantity for convenient replacement., Manufacturer: ECSiNG