AC dB Meter 400EL
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Hewlett-Packard, HP;: AC dB Meter 400EL [Equipment] ID = 921779 737x933
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| Year: 1980 | Category: Service- or Lab Equipment | ||||
| Semiconductors (the count is only for transistors) | 25: |
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| Wave bands | - without |
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| Details | |
| Power type and voltage | Alternating Current supply (AC) / 220 Volt |
| Loudspeaker | - - No sound reproduction output. |
| Power out | |
| from Radiomuseum.org | Model: AC dB Meter 400EL - Hewlett-Packard, HP; Palo Alto |
| Material | Metal case |
| Shape | Tablemodel, with any shape - general. |
| Dimensions (WHD) | 130 x 165 x 280 mm / 5.1 x 6.5 x 11 inch |
| Notes | The HP models 400EL is a versatile AC dB meter with linear dB scale and logarithmic AC voltmeter scale underneath. Voltage range 1 mV full scale to 300 V full scale in 12 ranges. Frequency range from 10 Hz to 10 MHz. Imput impedance is 10 megaohms shunted by 25 pF. External battery operation with positive and negative voltages between 35V and 55V. |
| Net weight (2.2 lb = 1 kg) | 6 lb (6 lb 0 oz) / 2.724 kg |
| Source of data | -- Original-techn. papers. |
Model page created by Emilio Focosi. 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.
