AM Applications

6BA6 6BE6 6AU6 6AL5 6CN7 6HS6


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Scott quickly followed its successful 1954 introduction of the FM-only 310-A Broadcast Monitor, with the AM/FM 330-A in 1955.

The 330, 331 , and 333-series, featured twin independent tuner sections, designed to facilitate "Stereo-Simulcast" reception. In 1959, the first Scott stereo receiver (with integrated power amps), the Type 399, also featured Scott's famous twin round tuning dials (the 399 FM section was still mono, as "true stereo" (multiplexing) was still 2 years away (1961).

The basic Scott AM design utilized the following tubes:
    6BA6    AM RF Amplifier
    6BE6    AM Converter
    6AU6    AM IF Section
    6AL5    Combined AM Detector and AGC  (the 330-D used a 6CN7)

Later Scott introduced, less-costly (and more traditional) AM/FM tuners and receivers that shared a common tuner front-end (which were not "Stereo- Simulcast" capable). These included types: 300, 320, 345, 355, and 380. These types take advantage of "shared" tube circuitry between AM and FM duties, but still utilize the traditional Scott AM three-tube lineup: 6BA6, 6BE6, 6AU6.