---- June 17th 2024 ----

Call: 1 (800) 377-3244
Monday to Friday 8 A.M. - 5 P.M. (Pacific Time)
E-mail questions to:

Pricing is subject to change depending on product availability and backorders.
*Please Note: Contact us for items without price.

About CWS Bytemark

CWS ByteMark is located at 353 West Grove Avenue. In the city of Orange, California. Zip Code 92865, USA.

We Are Available Monday to Friday From 8 a.m.- 5 p.m., Pacific Time.
Toll Free: (800) 377-3244
Local Phone number: (714) 279-9010
Fax: (714) 279-9482
We strive to provide you with:
  • On-time Delivery
  • Fast Customer Service
  • Most parts are in Stock for immediate shipment

CWS ByteMark supplies the wide selection of products and services. In addition, please also visit our sites at: and

1. RF Iron Powder cores and Power Conversion, and Line Filter Iron Powder cores for high Q circuits, RF circuits and Inductors.

2. Ferrite cores for Radio Frequency Interference (RFI) suppressions in 500 KHz to 500 MHz ranges. Special ferrites for the Ham radio band (3 to 30 MHz).

3. High Power (100 watts to 10 KW), broad bandwidth (1 MHz to 50 MHz). Balanced to Unbalanced (BALUN) impedance matching transformers for matching antennas to transceivers.
Ability to match 50 ohms coaxial to balanced line of 12.5 ohms to 600 ohms.

4. High Power and broad bandwidth Unbalanced to Unbalanced (UNUN) transformers to match 50 ohms coaxial to load of 3.15 ohms to 800 ohms.
Applications include Beverage antennas, Verticals, etc.

5. MolyPermalloy (MPP), High Flux and Sendust Cores for Line Filters, Chokes, Flyback Transformers, etc.

6. Coil Winding Services
Value Added Services: Coating of cores (epoxy, parylene, polyurethane), Coil Winding, Core gapping and grinding, Custom Chokes and Inductor designs, Custom manufacture of iron and ferrite cores.
Fast turn - 2 to 3 days, no minimums, low costs.

Please click Product Selections for a full description, application notes, and prices.
CWS Bytemark reserves the right at any time and from time to time to make changes to design, technical specification, or construction of any product listed on this website without notice.
CWS Bytemark also reserves the right to discontinue or limit sale of any product or service available throughout this website on temporary or permanently basis without notice.
CWS Bytemark highly recommend customers not to use its products offered on this website for inappropriate use and applications. Products should be tested for its suitability by prospective customers in all possible applications and conditions.

WARNING: This product can expose you to chemicals, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Any Comments, Suggestions or Questions? Contact us!
Tel: (714) 279-9010, Fax: (714) 279-9482
Toll Free: 1-800-679-3184 or 1 (800) 377-3244
CWS 353 West Grove Ave. Orange, California 92865

Copyright (C)2008-2021, CWS Bytemark
Updated 2021 Jan. Rev. V4.0