Audio Database Accuphase T-103 150,000 yen(January, 1979 release) Description �@ FM tuner of a highly complete variable condenser system and the hybrid system which combined the strong point of the digital display which can perform exact frequency spectrum designation. Instead of an infestation dial type, a digital display is made a crystal oscillator at intervals of 100kHz by a counter circuit. However, the received frequency can carry out variable continuously, and a 0.01MHz beam is rounded off and it is displayed. The exact aligning point is performing detuning frequency in the center directions type tuning meter which is in a scale. Moreover, when a digital display machine turns off the power switch, it works as a clock. It is also possible to check time with a switch also during reception. The front end part has adopted 5 continuous variable condenser system. In the intermediate frequency circuit, since it is compatible in the high selection degree characteristic and a low distortion, the SAW filter (surface elastic wave filter) and LC filter which were excellent in the degree of selection and the county delay characteristic have been combined. A SAW filter is the abbreviation for Surface Acoustic Wave,2 sets of things which made the electrode of the state of the teeth of a comb counter on the piezo-electric body are made, piezo excitation of the oscillation side is carried out, and it is considered as surface vibration, and tells a received electrode, electric conversion is carried out again, and the stable engine performance is maintained over a long period of time with the new filter which can determine frequency and bandwidth in the elasticity of a material, or the form of an electrode. Moreover, the degree of selection is two-step switching of Normal (low distortion) and Narrow (the degree of high selection), and consideration is carried out to contiguity interference. It multiplies by the signal and input wave which passed along the phase converter (circuit which displaces phase) which changes to a wave detector linearly according to frequency focusing on 90 degrees, and an audio signal is acquired. "it is and the changed type wave detector which meets is used. The detection characteristic near non-distortion has been acquired by this broadband linear phase phase converter. PLL Demodulator who built in the circuit which removes a pilot career is used for the circuit which restores to a synthetic signal on either side in a stereo. It has two of the meter which can change and check the zero center meter (with a detuning frequency scale), the "incoming signal level" and an "abnormal-conditions machine", and the "multipass" for exact alignment with a switch. The incoming signal level can know a dBf Direct-reading scale, the degree of modulation can know full-scale 200% by peak support, and the multipass can know suitable or isn't suitable of the direction of an antenna by a clear mark. The noise filter which reduces a noise at the time of reception of the weak stereo of an electric wave, the mode switch which changes a stereophonic broadcast to a monophonic recording, the muting switch which removes the noise between offices, the dimmer switch which ���� a frequency-spectrum-designation machine, etc. are carried. Rating of a mode Form Digital display FM tuner <Monophonic characteristic> Sensitivity Practical speed: 11.2dBf S/N50dB sensitivity: 17.3dBf Standing-wave ratio 1.5 S/N (65dBf input) 77dB THD (at the time of 65dBf input and the Selectivity switch Normal) 100Hz : 0.03% or less 1kHz : 0.03% or less 6kHz : 0.03% or less 10kHz : 0.04% or less IM distortion (14Hz:15kHz=1:1) 0.01% or less (antenna input 65dBf, 100% abnormal conditions) Frequency response 20Hz-15000Hz+0 -0.5 dB The degree of 2 signal selection (45dBf input) Disturbance wave Selectivity Normal Selectivity Narrow 400kHz 50dB 100dB 200kHz 6dB 20dB Capture ratio 1.5dB RF inter-modulation 75dB Spurious disturbance ratio 120dB Image ratio 120dB IF/2 spurious response 100dB AM oppression ratio (65dBf input) 80dB Subcarrier oppression ratio 80dB SCA disturbance ratio 80dB Output voltage (100% abnormal conditions) 1.5V <Stereo characteristic> Sensitivity S/N 40dB sensitivity: 28.8dBf S/N 50dB sensitivity: 37.3dBf S/N (65dBf input) 75dB THD (65dBf input) 100Hz : 0.03% or less 1kHz : 0.03% or less 6kHz : 0.05% or less 10kHz : 0.1% or less IM distortion (9kHz:10kHz=1:1) 0.03% or less (antenna input 65dBf, stereo 100% abnormal conditions) Frequency response 20Hz-15000Hz+0 -0.5 dB Stereo separation 100Hz:50dB 1kHz:50dB 10kHz:45dB Stereo change inlet pressure 10.2dBf <Synthesis> Received frequency 76.0MHz - 90.0MHz, a continuation variable Frequency spectrum designation 100kHz feeling and a 10kHz beam are rounded off. Alignment system Precision 5 �A variable condenser Frequency stability Less than �}30kHz Output load impedance Fixed output terminal: 200ohms Variable output terminal: 2.5kohm Antenna input impedance Balance: 300ohms Unbalance: 75ohms Meter Two pieces A signal strength meter / multipass / modulation change type Center tuning Digital clock Crystal oscillation type Accuracy: It is less than [ monthly difference�}15 second ] at 20 degrees C. The semiconductor used FET: Five pieces Transistor: 24 pieces IC: 13 pieces Diode: 25 pieces Power source 100V, 50/60Hz Power consumption 25W Dimensions the width 445x height 128(piece included) x depth of 370mm Weight 10.0kg Option Wood cabinet A-9 (15,000yen)