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hpr3794 :: Retro Karaoke machine restored

I fix the cassette tape mechanism to a resale shop karaoke machine

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Hosted by Archer72 on 2023-02-16 is flagged as Clean and is released under a CC-BY-SA license.
retro, karaoke, 8-track, cassette tape, Free Music Archive. 2.

Listen in ogg, spx, or mp3 format. Play now:

Duration: 00:08:11


ENTEX Electronics Electronic Singing Machine.
Karaoke Model No. 1820. Entex Electronics Inc. Made in Taiwan. Late 1970s early 1980s.
It incorporates an 8-Track Player and Cassette Tape Recorder.
It also uses the Bucket Brigade Device Echo (BBD ECHO) Power is supplied by
AC 120 Volts. It also uses 10 D cell batteries, or alternatively 12-15 volts DC.

ENTEX Electronics Electronic Singing Machine

Entex Electronics Handheld Games on the Internet Archive


Square Cassette Tape Machine Recorder Rubber Belt

Cassette Recorder Repair Maintenance Mix Flat Cassette Tape Machine Rubber Belts (Width 4MM)

USB Soundcard

48KHz/44.1KHz sampling rate with 16-Bit Resolution.

SABRENT Aluminum USB External Stereo Sound Adapter

Free Music Archive

Cyborg, Lost by Modern Monster

The images are thumbnails. Click on each to see the full-sized picture.

8 Track side
8 Track side

Cassette tape side
Cassette tape side

Initial condition of the cassette player
Initial condition of the cassette player

Back of the player
Back of the player

Player with the cassette cover removed
Player with the cassette cover removed

Connecting rod for the cassette player
Connecting rod for the cassette player

Cassette pulley system
Cassette pulley system

Line out
Line out

Analog audio capture

arecord -L
 - Find device to use
 - This works for finding the microphone input or the USB external sound card

    USB Audio Device, USB Audio
    Default Audio Device

file=dump'_'$(date +%F_%H-%M-%S)'_Sabrent_soundcard_in'.flac

arecord --device='sysdefault:CARD=Device' --rate=96000 --channels=2 --vumeter=stereo
sysdefault:CARD=Device --duration=300 --format=dat --file-type wav - | flac - -o $file


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Comment #1 posted on 2023-03-01 19:27:31 by one_of_spoons

tape cassettes

I have dismantled a few cassette players in the past. The memories make me shudder, but I thought the pieces were neat. I never have repaired one. I repaired a lot of chewed up cassette tapes though, albeit stretched or with missing sections.
Comment #2 posted on 2023-03-14 19:31:01 by Jon Kulp

Obsolete Audio Devices Rule

What a beautiful machine! So glad you got it working and recorded an episode about it. Love it. Now if you could only source some vintage karaoke tapes in both formats and sing along for demonstration...

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