This is a very cool-looking portable speaker introduced by Aihua in 1978, model TPR-840 stereo radio cassette recorder.
It has 2 speakers (5 inch full range speakers). Its cabinet content is large enough to make electronic music and other electronic music sound great, although it doesn't have much bass.
Recorder FM/SW/MW Stereo Radio TPR-840 Stereo 840, REC Mute, using absent recording mechanism
It has a wide range of rear shell input and output interfaces, with MIC IN/ AUX IN / LINE OUT, and the portable speaker weighs 6.2 KG with battery.
<h1 class="pgc-h-arrow-right" data-track="7" > introduction</h1>
Country of origin: Japan
Manufacturing company: Aihua company
Date of manufacture: 1978
Product Category:Stereo Broadcast Receiver - Audio Recorder
Product brand: AIWA Aihua
<h1 class="pgc-h-arrow-right" data-track="20" > specifications</h1>
Number of Transistors :
semiconductor:
Band: Broadcast FM / SW / MW /
Reception: FM 88-108MHZ / SW2 7.5-22MHZ / SW1 2.3-7.5MHZ / MW 525-1605KHZ
Input and output interface: external antenna terminals for FM, line input/output terminals, microphone terminals, remote control terminals, phono terminals, ground terminals, player synchronization terminals, AC 100V terminals, DC 9V terminals, external speaker terminals, headphone terminals
Details: Stereo cassette radio or recording player
电源:AC 100-120V;220-240V / DC 9V
Power supply frequency: 50/60Hz
Frequency characteristics: 50 to 14,000Hz (FeCr tape)
Signal-to-noise ratio: 53dB (normal tape)
Battery: D 6 x 1,5 volts
Speaker diameter: 12cm round speaker x 2 pcs
输出:5.2W(2.6W+2.6W)(EIAJ/DC)
Power: 16W (18W max)
Standby:
Material: Plastic
Model: AIWA TPR-840 "Stereo 840"
Shape: Portable kit > 8 inches (can also be used without power supply)
Dimensions: W 463 x H 306 x D 125mm
Weight: 6.2kg (including battery)
Unit price: $500.00 for the first year of sale
<h1 class="pgc-h-arrow-right" data-track="109" > special features</h1>
REC Mute makes it easy to create recording functions
ALC/Manual Recording Toggle
Absentee recording is possible when used in conjunction with a timer (sold separately).
The "Select Vivid Channel Selection" FT indicator indicates optimal tuning by moving the lights of the three lights
2 whip antenna mode
External antenna/bar antenna selector switch for FM
Stop fully automatically
Cue/review
FeCr / LH / NORMAL
Level 2 toggle tape selector
Bass/treble independent tone control
MONO /STEREO/WIDE 3-level switching mode
System upgrade with player and external speakers
Player during recording and tape, simultaneous start/stop
Low Jitter & Flutter 0.08% (WRMS)
You can also use the tape selector for FeCr tapes
Sleep switch
AFC/OSC switch
VU/dial light tuning battery selector switch