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hpr_transcripts/hpr3794.txt

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+Episode: 3794
+Title: HPR3794: Retro Karaoke machine restored
+Source: https://hub.hackerpublicradio.org/ccdn.php?filename=/eps/hpr3794/hpr3794.mp3
+Transcribed: 2025-10-25 05:25:14
+
+---
+
+This is Hacker Public Radio Episode 3,794 for Thursday the 16th of February 2023.
+Today's show is entitled Retro Cariochi Machine Restored.
+It is hosted by Archer 72 and is about 8 minutes long.
+It carries a clean flag.
+The summary is I fix the cassette tape mechanism to a resale shop Cariochi Machine.
+Hello this is Archer 72, welcome to another episode of Hacker Public Radio.
+In this episode I found an NTEX Electronic Singing Machine Cariochi Model 1820 in the
+thrift shop.
+From worthpoint.com it was made in Taiwan in the late 1970s to the early 1980s.
+It incorporates an 8-track player and a cassette tape recorder.
+It also uses the Bucket Brigade Device, BBD Echo, Power Supplyed by 120 volts AC.
+It also uses 10 D cell batteries or alternatively 12-15 volts DC.
+As a side note, NTEX made handheld games and they have manuals on the internet archive
+and I'll leave a note for that.
+The first thing I noticed when I tested this machine in the store is that the control
+knobs were pretty noisy.
+So I picked up some contact cleaner and worked especially the volume knob.
+So that helped a lot with consistent playback so it wouldn't be static when I turned
+the volume up and down.
+Besides that the 8-track tape did play right off but the cassette side of the machine
+did not.
+So I figured based on what John Colp had said in a previous episode about cassette players
+that the belts might be bad.
+There were about 8 screws holding a panel in to access the back and when I first looked
+in I saw that there was only one belt in the cassette side and it was just hanging there.
+Initially just thought I would need one set of belts so I ordered those off I Amazon.
+To get to these belts on either side there were 3 screws holding the tray in place.
+In other words the assembly that held both the 8-track and the cassette electronics together.
+The two thinner belts were easy enough to install without pulling the assembly further
+apart.
+When the tape player still didn't turn I realized that there was a flat 4mm belt that fed
+around the flywheel and also to a spindle which looking back I probably should have cleaned
+up with alcohol because in this porting picture you'll see that it's a little bit gummy.
+There were 3-4 screws holding the cassette assembly together to where I could replace the
+flywheel belt.
+I had to be careful getting it back together though because there were 3 pulley wheels
+in an assembly that led to a switch on the PCB and also when I put it back together
+I couldn't forget to put back the connecting rod to the cassette tray and before I started
+taking this apart there was a cover for the cassette tray that was held in by two thumbs
+screw.
+The final check to make sure the cassette side turned freely now that I have it put back
+together I can show you what the 8-track side sounds like.
+Unfortunately I can't actually play music off of it to show you because it's copyrighted
+but I can demonstrate the mechanism and the button that changes the tracks.
+I can play something from the cassette side.
+I pre-recorded this from the free music archive.
+The title is Cyborg Lost by Modern Monster.
+Now I'm ready to capture audio from the line out which I noted on the back that there
+were both the line outs were red in color so that kind of indicates that it was made
+quite a while ago before the standard became red on the right and white on the left.
+I used a sabrent audio capture device because on the netbook that I repurposed from a previous
+show it only had a single channel for the microphone input and also this capture card captures
+at a higher bit rate and it's unknown as to what the microphone input bit rate was on
+the netbook.
+I'm using a record to capture the flack output and I thought it would be a nice play on
+words to name the script capture the flack.
+If you have an idea what this is a play on words from then feel free to leave a comment.
+This is captured using the a record utility.
+It names the file with a time and date stamp and the command is as follows.
+A lot of audio capture.
+A record L find device to use this works for finding the microphone input or the USB external
+sound card.
+Soundcard system fault code and card equals device USB audio device USB audio default audio
+device.
+Capture the flack.sh.
+File equals dump, dollar, date plus percent f percent h percent m percent s sabrent sound
+card in dot flack.
+A record device equals USB fault code and card equals device rate equals 96000 channels
+equals 2 new meter equals stereo USB fault code and card equals device duration equals 300
+format equals that file type 1 flack o dollar file.
+Thank you for listening and feel free to leave a comment on here or all any of the other
+3,790 shows and also there is only 5 days until the next free slot as of this recording which
+I am recording on February 11th, 2023.
+Until next time.
+You have been listening to Hacker Public Radio at Hacker Public Radio does work.
+Today's show was contributed by a HBR listener like yourself if you ever thought of recording
+broadcast and click on our contribute link to find out how easy it really is.
+Hosting for HBR has been kindly provided by an honesthost.com, the Internet Archive
+and R-Sync.net.
+On the Sadois status, today's show is released under Creative Commons, Attribution 4.0 International
+License.