The chokes in this series are designed for the high-voltage power supply filtering of preamplifiers and low to medium power tube amplifiers. They are particularly well suited wherever effective filtering is required while keeping size, weight, and cost to a minimum.
The range includes models with different inductance values and current ratings to cover the most common design requirements. Each model is optimized to provide the best balance between electrical performance, compact dimensions, and ease of installation.
Due to their compact size, these chokes inevitably have a higher DC resistance than larger models with comparable specifications. In most applications this is a perfectly acceptable compromise, offset by significantly reduced size, weight, and cost.
Below you will find the technical specifications of the available models, including their mechanical dimensions, to help you select the most suitable choke for your project. The photographs are representative of the product. Minor cosmetic differences, such as wire color, paint finish, or bobbin type, may be present without affecting the electrical characteristics. A clear varnish finish is also available on request.
As with all SB-LAB products, quantity discounts are available. Ordering chokes together with power transformers, output transformers, or other products from our catalog allows you to benefit from more favorable pricing than purchasing individual items.
