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Company

Sparrevohn Engineering

6911 E. 11th St.

Long Beach, CA 90815

USA

Tel: 562-799-1577

Email: fred@sparrevohn.com

http://www.sparrevohn.com/

Products and Services

APPEARS IN ARRL HANDBOOK; FILTER>TELEPHONE EMI FILTER;

Notes

Filter models F-1 (single-line), F-2 (two-line). FoneAlone--an automatic exclusion device for the telephone. If a fax, computer, or phone extension are all using the same phone line, it will give priority to the unit that went off hook first. All of the other devices will be temporarily disonnected to eliminate the possible inadvertant loss of data by trying to use two devices at once.