CAT Synthesizer - How to Replace Keyboard Bushings on a Pratt & Read keyboard used on Moog & ARP
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- Опубліковано 13 жов 2024
- This video will show you how to replace the Pratt and Read keyboard bushings in a vintage CAT Synthesizer, Moog, Minimoog, Multimoog and Arp synths. Over the years, the rubber bushings dry out and become brittle. When you press a key down, you will hear a loud clacky sound. New bushings will restore the original feel to the Pratt & Read keyboard. I will also show how I adjust the J-wires so they hit the bus bars in the proper order.
Link to bushings...
syntaur.com/It...
#synth
#AnalogSynths
#Synthesizer
#analogsynth
#synthrepair
#minimoog
#arp
#octave
great video, very thorough, very useful. thanks for taking the time to share.
Really appreciate the comment. The bushing and grease are still holding up. I was just playing it.
@@georgeterbush2976 Nice. I just ripped mine apart. Removed the old bushings, am cleaning key tops overnight, have to see about leveling the keys in the morning and then add the new bushings and put it all back together. What could possibly go wrong?
Thanks for the video. Was a big help for replacing the bushings on my multimoog
This video was a huge help with my Micromoog. Thx!
Awesome! I'm glad the video helped. The new bushings will definitely restore the original feel to the keyboard. Thanks for watching and commenting.
THANK YOU!!! 😊
Glad it helped.
I don't think dielectric grease is the best tool for this job. It's pretty heavy, viscous grease. Even if it doesn't hang, it would likely slow the action. I've experimented with several lube types including the mentioned spray. I finally settled on Dow Corning Molykote 44 after a recommendation. It gets highest marks from me. My main keyboard was lubed with this 2 years ago and it hasn't changed in the slightest. The action is very light and responsive. One tube should last a lifetime unless you do it for a living.
I agree. The dielectric grease is still performing well on the synth, but if I were to do it again, I would use the Dow Corning Molykote 44. I restored my Korg digital piano and used the Molykote 44.
ua-cam.com/video/G96oP-ACREQ/v-deo.htmlsi=0t01yR7imm7T4ap5&t=408
I'm confused - do you lubricate the outside of the bushing or the inside of the metal part that touches the bushing?
Hi Philip. I used the lubricant on both the bushing and on the inside of the metal key. Here is where I mention it in the video 11:55. Good luck with your restoration.
@@georgeterbush2976 Thank you!
How did the dielectric grease fair over time?
So far, so good. If the keyboard is not played for awhile, I have to press down on all of the keys once to free them up, but I remember I had to do that even when the keyboard was brand new back in the 70's. The action feels smooth and normal with the new bushings and dielectric grease.
Where can I buy exactly these springs. I repair my Gibson G101 at the moment and could need some
They are very hard to find. Maybe on ebay?
www.ebay.com/itm/285098640327
@@georgeterbush2976 Thanks a lot! I let you know! Best regards Thomas
What are the arms that the bushings are on called/named?
I don't know but I bet you do. LOL. What are they called?
Hi again, my keyboard has the same clacky sound as yours. I want to order these new rubber stops also. Can you give me the website you used? Also once you get your keyboard completed can you do another video showing all the sounds in its full glory! 🙂🙂
Thanks again from Tony
The company in Texas is called Syntaur. They are a synth repair company but also sell parts. I'm really happy with the bushings I got from them. I wish they supplied a little bit of grease with the bushings, but the dielectric grease I used seems to be working well.
Link to bushings...
syntaur.com/Items.php?Item=416937
One thing about cleaning the keyboard buses and J-Wires. After applying the DeOxit Gold and letting it sit for a few days, I cleaned everything again with 91% alcohol. I was worried the sticky DeOxit Gold would attract dirt.
I'll have to make another video with a bunch of sounds. There is an awesome demo of the Behringer CAT which is a reproduction of the CAT. The sounds this guy is able to produce is amazing. It is a treasure trove of patches!
ua-cam.com/video/H2xwFFJBGOc/v-deo.html
@@georgeterbush2976 Thank you so much for getting back to me. I will definitely be ordering those bushings I have the same Dielectric grease you used. Thanks again for the extra info and I subscribed to your channel so that I get your new videos 👍 thanks again!
@@georgeterbush2976 P.S. just watched that clip. I love the way he explains all the controls. I just tried to apply some of the settings to mine and got almost the same sounds!
@@tonyp.2482 Being that our synths are analog using op amps and manipulating voltage levels, our settings will be a little different than his, but it gets you in the right ball park. I'm using the video as a refresher and a tutorial.