u/theGnartist

Otari 5050 overheating?

You may have seen a previous couple of posts I made about a problematic Otari 5050 I purchased that was then replaced by the seller in an attempt to make it right. Well, now I have a functional machine that I am very excited about.

However, in the last couple of days I’ve noticed something, about halfway through a reel, the tension arms start occasionally waving and relays start to clatter. I’ve attached a video.

As it continues to play it becomes more and mor constant clicking of relays and waving of tension arms. I noticed that the motor on the take up side is yute warm to the touch. The supply side not so much.

If I turn the machine off and wait until the motor no longer feels warm, and start it back up then it will continue to play with no issue until the end of the tape.

This leads me to think something is causing the machine to overheat.

I’ve done some digging online but not found and helpful information about this specific issue.

Has anyone here encountered something similar? I’m just wondering where to start looking for the cause of this.

u/theGnartist — 5 days ago
▲ 13 r/Hainbach+1 crossposts

MicroFreak with vintage analog gear and a tiny bit of eurorack

https://youtu.be/VmCOK_9BP1I?si=JkyeyGALn0yzuw3R

I've been working on restoring a Teac Model 5 mixing desk with the Model 5 EX expander. Finished up cleaning all of the channels and the external housing so I wanted to put it through some paces to get a better understanding of signal flows within it.

Here I'm using MicroFreak as a source of pad sounds that are being arpeggiated at different time divisions. The echo send goes to two delay routes. The first is straight to my Marantz PMD430 for short slap back type delay. The second goes first through Venus Instruments Veno-Echo for longer Frippertronics length delay, which then goes into the second chanel of the Marantz. Both outputs are fed into separate channel strips on the mixer with their own feedback being controlled via that channels echo send knob.

Not really any sort of polished piece, or performance, just messing around with routing and settings. One thing I think I learned is I need a compressor for the inputs because some parts of the pads a different frequencies definitely take over unexpectedly.

u/theGnartist — 9 days ago

I’m planning out building a bit of an experimental sound studio in my new place in Boston, MA.
First step was an analog mixing desk to serve as the centerpiece. I came across this Teac Model 5 with expander, outboard EQ, Submixer, patchbay, and desk locally for a good price and jumped on it.

The last two photos are how it came to me. You can’t really see but it was gunked up and sticky. My guess is years in a smoking environment because it felt like a similar residue to the inside of a smoker’s car. Plus previous owner had painted the side plated black and red.

I dissected everything. Scrubbed it, cleaned electronics with deoxit, and removed that old paint. Every function works smoothly now! Currently working through calibration with the manual I had printed.

So far I’ve only finished the main board. Expander will come next.

The beginning plan is to integrate with my euro rack and Marantz cassette decks followed by a couple of Reel to Reels set up similar to Hainbach’s Miniature Analog Experimetal Studio Video

And here is a video using it alone as a no-input instrument.

https://youtu.be/Ky9J-oQO6\_A

u/theGnartist — 19 days ago

The last photo is how it came to me. You can’t really see but it was gunked up and sticky. My guess is years in a smoking environment because it felt like a similar residue to the inside of a smoker’s car. Plus previous owner had painted the side plated black and red.

I dissected everything. Scrubbed it, cleaned electronics with deoxit, and removed that old paint. Every function works smoothly now! Currently working through calibration with the manual I had printed.

So far I’ve only finished the main board. Expander will come next.

u/theGnartist — 22 days ago

I’ve been working on restoring this Teac Model 5 for a couple of weeks. Sat down and did a non input recording today. So far I’m absolutely in love with this thing!

u/theGnartist — 23 days ago