|
| Pioneer C-73 |
|
| 50,000yen(around the 1980 time) |
The preamplifier
carrying a cartridge loading circuit changing switch.
The equalizer part
has adopted first rank differential and three-step hardwired-connection
final-stage Class-A operation pure complimentary SEPP and positive/negative 2
power source as a circuit system, and is raising a distorted reduction and
temperature characteristic.
Moreover, the NFB element selected carefully is
adopted.
In order to demonstrate the performance of a cartridge more,
the cartridge loading change-over switch is carried.
Load resistance and
four kinds of load capacity can be chosen, respectively, and a loading suitable
for the cartridge to be used can be set up.
Attached organizations, such
as a 4-unit volume which adopted 32 step attenuator type, and a two-line tapes
circuitry which can perform a mutual tapes reproduction, are adopted.
It
is the panel design which can be mounted on EIA specification rack.
|
| Form |
Stereo preamplifier |
| Circuit system |
| Equalizer-amplifier part : |
3 steps of first rank differentials
hardwired-connection Class-A SEPP |
| Control amplifier part : |
3 steps of first rank differentials
hardwired-connection flat amplifier
3 steps of turnover switching NFB type
tone |
|
| Input terminal |
Phono1, 2 (with a 4 steps of cartridge load
capacity switching)
Tuner, AUX1, 2, Tape Play1, 2 |
| Phono maximum permissible input (1kHz)
|
300mV (0.01% of distortion)
|
| Output-terminal |
Tape Rec1, 2, Output |
| THD (20Hz - 20kHz) |
Phono:0.01%
Tuner, AUX, Tape Play:
0.005% (at the time of 2V output) |
| Frequency characteristic |
Phono: 20Hz-20kHz±0.2dB
Tuner, AUX, and
Tape Play:10Hz-100kHz+0 -0.5 dB |
SN ratio (IHF, A network)
Short circuit
|
Phono:80dB
Tuner, AUX, Tape Play: 100dB
|
Power consumption
(Electrical Appliance and Material Control Law) |
10W |
| Dimensions |
Width 480x height 142x depth of 390mm
|
| Weight |
7.7kg |
| EIU specification rack mounting unit |
3U |
|
|
|
