Showing posts with label SANYO. Show all posts
Showing posts with label SANYO. Show all posts

06 July 2017

Summer Holiday and Vintage Portable Audio

Summer Holiday is here so it's time to relax. If you are a rich guy then you simply escape from the Big city.....in a Big way. 


If you are like me, a regular Hi-Fi guy, then you pack your bags (and Hi-Fi) and hit the road.


Finally arrived each one goes it's own way. The rich guy with his Yacht, girl and Boombox while the
regular guy is watching the girls and goes to beach parties.






When your holiday ends and you feel a little bit shrinked, that's because you've stayed too much in the water.


That's all folks.

19 January 2017

PCM Adapter - Old Digital Audio Format

Before the introduction of a standardized format to record digital audio to a tape (the DAT recorder) the practice was  to use a PCM adapter (pulse code modulation) connected to a video recorder to record the digital audio signal to tape. The PCM adapter was connected to a video recorder using the video in/out of the unit in order to record the PCM coded audio digital signal where normally the video signal is recorded. The reason to do this was that a linear tape recorder did not have sufficient bandwidth to record large volumes of PCM data while video recorders were available both for studio and home use and the rotary video heads used in a video recorder had sufficient bandwidth to do this. Most video-based PCM adaptors record audio at 14 bits quantization, and a sampling frequency of 44.056 kHz.

pcm adapter
PCM connection diagram

First generation PCM adapter

pcm adapter
SONY PCM-1 1977

pcm adapter
Technics SH-P1 1979

pcm adapter
DIATONE PCM

pcm adapter
SHARP RX-1 VC-6300 1979

Commercial models

pcm adapter
Aurex XD-80 1981

pcm adapter
Aurex XD-60 1981 (right)

pcm adapter
DIATONE D-102 1982

pcm adapter
SONY PCM-F1 1981

pcm adapter
Technics SV-100

pcm adapter
SONY PCM-501 1984 / 553ESD 1985 / 701ES 1984

pcm adapter
Sanyo PLUS 5

pcm adapter
Sansui PC-X1 / PC-X11 1988

Dedicated audio players using VHS video tape

pcm adapter
Technics SV-P100

pcm adapter
HITACHI PCM-V300 1982

VCR with PCM audio

pcm adapter
Aurex TOSHIBA PCM-D1

pcm adapter
Aurex TOSHIBA PCM-D1

Prerecorded PCM audio on VHS tape

pcm adapter
Mobile Fidelity Sound Lab prerecorded PCM (digital) audio on VHS

More vintage audio @ www.1001hifi.com

19 January 2016

CLASSIC minis - part 2

1001hifi classic minis

AIWA my Pace - mini series 80 (1980)
Shown components: L80 stereo cassette deck, R80 digital tuner, C80 preamplifier, P80 power amplifier 
See the AIWA 80 in our collection.

aiwa my pace 80
AIWA my Pace - mini series 80 (1980)

BLAUPUNKT Micronics (1980)
Shown components: A-60 amplifier, T-60 tuner, C-60 stereo cassette deck


blaupunkt micronics
BLAUPUNKT Micronics (1980)

Cybernet Minipack 50 (1981)
Shown components: 50-A power amplifier, 50-T tuner-pre-amplifier, 50-C stereo cassette deck
Cybernet sold these components to other brands who sold them as rebadged components such as the KRAUS 50A,  Lenco-Italia MC 70
In the US they were sold under the Realistic brand name by Radio Shack.

cybernet minipack kraus lenco realistic
Cybernet Minipack 50 (1981)

ROTEL Micro 90 (1982)
Shown components: RMA-90 amplifier, RMR-90 remote control center, RMT-90 digital tuner, RMC-90 stereo cassette deck. A different model from ROTEL was rebadged as UHER PACO2

rotel micro 90
ROTEL Micro 90 (1982)

SANYO System PLUS 20 (1980)
Shown components: PLUS T20 digital tuner, PLUS C20 preamplifier, PLUS P20 power amplifier, PLUS D20 stereo cassette deck. We have in our collection the rebadged version of this system 

sanyo plus siemens
SANYO System PLUS 20 (1980) / SIEMENS 666

Technics Concise System C01 (1979)
Shown components: SE-C01 power amplifier, SU-C01 preamplifier, ST-C01 stereo tuner, SH-C01 power supply, RS-M02 stereo cassette deck


technics concise
Technics Concise System C01 (1979)








19 October 2015

PCM digital audio Compact Cassette


At the Tokyo Audio Fair in 1981 there were no more than 16 companies showing CD players before the official launch in 1982. On the other hand the same companies - JVC, PIONEER, SANYO, SHARP, SONY - demonstrated PCM tape decks that were using normal Compact Cassette. The only problem was that there was no standardization of the recording format. The cassette were not interchangeable, each company using a different recording format, track layout and tape speeds. The result is as we all know that only the CD was succesfull and the Compact Casssette remained as an analog audio recording format....or the storage device of the world first Digital Photo Camera.

SANYO PCA-D8 1982

JVC digital compact cassette 1982 (not the later DCC)

SONY S-DAT 1981

In 1985 SHARP presented the: "PCM digital audio compact cassette deck RT-X5 OPTONICA" This was made by SHARP as an early PCM system using a "16-track integrated head system" using a regular "Compact Cassette". 
                                     Here are some technical data for the SHARP RT-X5 :
14 bit / 44.1 khz sampling frequency
Frequency response 2 - 20.000 Hz +/- 0.5dB
Tape speed 9.5cm/s
...and 10kg

SHARP RT-X5 1985

It was only in the late 1992 that PHILIPS presented the DCC (Digital Compact Cassette) a backwards compatible format that allowed to record in digital format to the new DCC cassette but also to play back your old Compact Cassette. But this was too late and it is known as one of the biggest failure in audio history.

PHILIPS DCC 1992