RD Junior Control Unit

The RD Junior Control Unit introduced by Rogers in 1952, was designed to complement their Junior De-Luxe and Baby De-Luxe power amplifiers. This initial model featured a straightforward design centered around a single ECC83 preamplifier, equipped with four input sockets and a switched low-pass filter.

Design and Features

• The Control Unit was characterized by its simplicity and functionality. It included:
• Four Input Sockets: These allowed for basic audio source connections, catering to the needs of early high-fidelity systems.
• Switched Low-Pass Filter: This feature helped manage the frequency response, ensuring that only lower frequencies were amplified, which was essential for maintaining audio quality.

Performance

Although the Control Unit was basic compared to later iterations, it laid the groundwork for more advanced features. The unit's design emphasized reliability and ease of use, making it a suitable choice for audiophiles looking to enhance their listening experience without the complexities of more sophisticated equipment.

Legacy

The RD Junior Control Unit set the stage for subsequent models, such as the Mk II (2), which introduced additional features like variable filters and multiple input options. This evolution reflected the growing demands of audio technology during the 1950s, positioning Rogers as a key player in the high-fidelity market.
This rare Control Unit remains a notable example of early audio engineering, appreciated for its straightforward approach to sound amplification.

Here you find 39 models, 39 with images and 6 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Rogers, Catford (see also Rogers Birmingham)