Barney Oliver Amplifier
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| Year: 1972 | Category: Audio Amplifier or -mixer | ||||
| Semiconductors (the count is only for transistors) | Semiconductors present. 2N2405 2N3904 2N3906 2N4036 2N4044 2N5401 2N5551 MJ802 MJ4502 |
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| Main principle | Audio-Amplification; Hi-Fi-High End products |
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| Wave bands | - without |
| Details | Hi-Fi equipment |
| Power type and voltage | Alternating Current supply (AC) / 115/230 Volt |
| Loudspeaker | - This model requires external speaker(s). |
| Power out | 160 W (320 W max.) |
| from Radiomuseum.org | Model: Barney Oliver Amplifier - Hewlett-Packard, HP; Palo Alto |
| Material | Metal case |
| Shape | Book-shelf unit. |
| Dimensions (WHD) | 425 x 127 x 278 mm / 16.7 x 5 x 10.9 inch |
| Notes | Integrated stereo amplifier. Very rare item (only 500 were made, for HP employees, their relatives and friends). Output 2 x 80W continuous in 8 or 16 Ohms (4 Ohms not recommended). Inputs for Tuner, Tape, Aux 1, Aux 2 and Phono (optimized for Shure V15 II). Sensitivity phono: < 5 mV, signal-to-noise ratio 84 dB (referred to 1 V output). Sensitivity other inputs: < 1 V at 100 k. Signal-to-noise ratio of power amplifier 100 dB (compared to max output). THD < 0.01% from 2 mW output to max. power at all frequencies. Volume control with dual precision attenuator, 60 dB range, 2 dB steps. Eliminates need for separate balance control. Tone controls (treble, bass, range +6 to -6 dB) Stereo/stereo reverse/mono L/mono R, dual mono operation also possible (separate use of each channel) Noise filter: corner frequency 5 or 8 or 20 or 100 kHz, 18 dB/octave, with 30 dB notch at 10 kHz in the 5 and 8 kHz positions NB Barney (Dr. Bernard M) Oliver was HP's vice president for research and development, and the designer of this amplifier. This explains the model name. He is also the author of an article entitled "Distortion in Complementary-Pair Class-B Amplifiers" which appeared in Hewlett Packard Journal, February 1971, Volume 22, Number 6, Pages 1-6. |
| Net weight (2.2 lb = 1 kg) | 20 lb (20 lb 0 oz) / 9.080 kg |
| Price in first year of sale | 325.00 US$ |
| Mentioned in | - - Manufacturers Literature (Hewlett Packard Barney Oliver Amplifier Memo) |
| Literature/Schematics (1) | -- Original-techn. papers. (Hewlett Packard Barney Oliver Amplifier Manual) |
Model page created by Aren van Waarde. See "Data change" for further contributors.
All listed radios etc. from Hewlett-Packard, (HP); Palo Alto, CA
Here you find 355 models, 322 with images and 124 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
