Preamplifier AP-2510

• alternative name: Heath Company

With the AP-2510 Preamplifier you not only get a quality component designed for Heath by Harman Kardon, but you get the satisfaction of saying, "I built it myself."
Virtually eliminating dynamic distortion, the 2510 has ultrawideband frequency response and low negative feedback to aid in the delivery of extremely fast transient response – a necessity in the accurate reproduction of digital recordings.
Transient response is also improved in the phono section with the use of dual RIAA equalization circuitry, which requires only low levels of negative feedback throughout the audio range. Also, a discrete Moving Coil (MC) head amplifier allows the use of nearly all MC cartridges. In addition, the 2510 features capacitance trim for the widest, flattest frequency response from Moving Magnet (MM) cartridges.
Other features include low noise discrete circuitry, subsonic and high cut filters, and a tape copy selector for dubbing between two tape decks or recording from another input. You'll also enjoy tone defeat which maximizes the purity of the signal when tone controls aren't necessary, and switchable bass and treble turnover frequencies which allow for custom-tailoring of the tone control to the listening environment. Includes inputs for two tape decks, two turntables, a CD player and a video sound source.

Assembled:    APW-2510.................. $399.00 USD.

Here you find 816 models, 799 with images and 515 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Heathkit (Brand), Heath Co.; Benton Harbor (MI)