ONKYO Integra 433
¥ 43,800 (around 1970?)
Commentary
An FM/AM tuner designed with an emphasis on audio characteristics as well as high-frequency characteristics.
A 6-element mechanical filter is adopted in the IF stage to set a wide bandwidth with 300 kHz linearity, and a ratio detection method is adopted in the detection stage to realize S-shaped characteristics with excellent linearity with a unique peak width of 900 kHz. It maintains a sufficiently low distortion rate from minute input to large input.
The tuning indicator uses a distorsion meter with a sharp dip in the pointer at the point with the least distortion, and accurate tuning can be obtained with 1 meter.
The pointer swings to the left at the tuning point.
As a new mechanism, automatic switching of the FM/AM dedicated dial for lateral travel is adopted.
Equipped with DIN terminal, FM muting, and noise filter.
Equipped with two output terminals, fixed and variable.
Model Rating
| Type | FM/AM Tuner |
| Receiving frequency | FM : 76 MHz to 90 MHz AM : 530 kHz to 1605 kHz |
| Sensitivity (IHF) | FM : 1.7 μ V AM : 15 μ V |
| Image ratio | FM:90dB(83MHz) AM:70dB(1MHz) |
| IF interference ratio | FM:100dB(83MHz) AM:70dB(1MHz) |
| Signal-to-noise ratio (FM-IHF) | 70dB |
| Two signal selectivity | FM : 75 dB or more |
| AM suppression ratio | FM : 55 dB or more |
| Capture ratio | 1.2 dB or less |
| Distortion factor | FM-stereo : 0.5% or less |
| FM-ST separation | 40 dB or More (400 Hz) 35 dB or More (100 ~ 10 kHz) |
| Frequency characteristic | FM : 20 Hz to 15 kHz ± 0.5 dB |
| External dimensions | Width 312x Height 136x Depth 345 mm |
| Weight | 8kg |