Solid-state record amplifiers presently available for magnetic tape heads drive the head with a voltage generator and, accordingly, require involved passive equalization circuitry to achieve a flat frequency response. This paper describes a technique whereby the head is driven directly by a current generator and equalization is accomplished actively within a feedback loop. Two potentiometer settings will yield a frequency response of +/-1 db, 20 to 20,000 cps at 7-1/2 ips using NAB standards.
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.