Revox B-261
The Revox B-261 is an FM tuner from Studer-Revox. It is documented mainly through a thorough Audio equipment profile (December 1983, p.58). The review opens with the writer's first encounter with the unit at the Studer-Revox facilities near Zurich. He was impressed, even though the listening session was short. According to Revox, microcomputer control simplified the internal wiring for improved reliability (Audio, December 1983, p.61). A short new-equipment note in High Fidelity (November 1983, p.15) described the tuning mechanism's random access to the desired reception mode - stereo, high blend, or mono - with station frequency and call letters shown on the display.
Past those period write-ups, the published specification sheet from the Audio profile is what survives:
- Usable sensitivity: 10.8 dBf mono, 31.2 dBf stereo
- Signal-to-noise: 80 dB mono, 76 dB stereo
- THD: 0.10% at 1 kHz, 0.15% at 100 Hz, 0.20% at 6 kHz
- Frequency response: 30 Hz to 15 kHz, ±1 dB
- Subcarrier suppression: 73 dB
- Output: fixed 2.0 V; variable to 8.8 V maximum
- Headphone output: 6 V into 220 ohms
- Power: 115 V, 50/60 Hz, 30 W
That is the full surviving picture. No original price, production years, or deeper service literature have turned up in the usual archive sources. The B-261 looks like a serious, well-engineered tuner from Revox's early-1980s line, but the historical record on it is thin.
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