Master Stereo Control Unit Mk II (2)

The Rogers Master Stereo Control Unit Mk2 was introduced in 1962 as a successor to the original Master Stereo Control Unit from 1960. It represented Rogers' top-of-the-line preamplifier offering in the early 1960s, designed for discerning audiophiles.

Key Features:

The Mk2 was a fully-featured preamplifier for its era, offering:

• Multiple inputs including a microphone, two phono inputs, two tape inputs, and a tuner
• Adjustable input sensitivities and impedances
• Comprehensive tone controls with bass, treble, and variable slope filters
• Stereo/mono switching capabilities
• Headphone output

Technical Specifications:

Control Facilities:

• 6-way Push-Button Input Selector.  MIC. DISC I. DISC 2. TAPE 1. TUNER. TAPE 2.
• Volume Control. Ganged Close Tolerance stepped type. Matched ±½ dB.
• Balance Control. Ganged. Range 9 dB.
• ON/OFF Toggle Switch, fitted click suppressors.
• Equalisation Switch. LP RIAA/CCIR - Flat - SP RIAA/NARTB.
• Low Pass Filter Slope. Ganged. Matched  1 dB. 0-15 dB. Per Octave.
• Bass Control. Matched. ±1dB. 15 dB. - 40 c/s. –
• Treble Control. Ganged. Matched ±1dB, 15 dB. 15 - 15 Kc/s. - 20 dB. - 15 Kc/s.
• Function Switch. Mono A. Stereo Mono B.
• Disc Slide Switch - MONO/ STEREO.
• Low-Pass Filter Slide Switch - 7 Kc/s., 10 Kc/s.
• Hi-Pass Filter Slide Switch 20 c/s., 60 c/s.
• Phones Slide Switch. IN/ OUT.  Speaker Output muted in IN Position.
• Cathode Follower Output: Adjustable 250-750 m /v., Impedance 25-50 ohms.
• Plug-in Power Pack: (optional extra) 100 v.- 250v. operation.
• Remote plugin, Balance/Volume control optional extra £3.

Design and Construction:

The Mk2 featured a brushed brass and matte black front panel with ivory control knobs adorned with brass inserts. It utilized vacuum tube technology, as was common for high-end audio equipment of the early 1960s.

Market Position:

Priced at £35, the Master Mk2 was positioned as a premium product in the British hi-fi market. It competed with other high-end preamplifiers of the time, such as those from Radford.

Historical Context:

The Master Mk2 was part of Rogers' product line during a transitional period in audio technology. It was produced during the early years of stereo, which became widely available in 1958. The Mk2 offered more extensive features compared to some competitors, including multiple tape inputs, which was an advanced feature for its time.

Legacy:

The Master Mk2 had a relatively short production run, from 1962 to 1969. Despite its advanced features, it seems to have lived in relative obscurity compared to some contemporaries. Rogers did not offer a direct solid-state successor to the Master Mk2, instead focusing on integrated amplifiers like the Ravensbourne and Ravensbrook in the late 1960s

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)