Another Vintage Music Man Stingray Bass Preamp Repair
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- čas přidán 20. 12. 2021
- In this video I diagnose and repair a Pre Ernie Ball Music Man Stingray active bass guitar preamp. Surprisingly it was a dead biasing resistor. I also rewired the output jack and added a reverse polarity protection diode. The onboard preamps in the new Ernie Ball basses have this feature.
This is a diy musician's gold mine! Thanks for the top class content!
Thank you! And wow, really great bass playing at the end of this video Rob! Nice harm. min. and an exceptional touch you have on bass..!
A cool repair! Thanks for salvaging that gem! I used to have two refin pre-eb's but I found them too heavy on my shoulder on long gigs. Now I have a 2010 2-band 'Ray that is lighter. I have also found that I prefer the sound of the newer lighter alder bodies to the old heavy ash bodies.
Watching your videos make me regret selling my 2011 Sterling Ray34CA. If I remember correctly, the preamp was a replica of the 77's preamp. Such a beautiful bass! Amazing content, Rob.
I bought my first brand new bass in 1978. I had a choice between a Stingray or Precision. I went for an all maple Precision which I still own. The Stingray was a relatively new bass and everyone I seen on the Old Grey Whistle Test had Fenders. Prior to that I had been playing a Gibson EB? which had one pickup.
Another job and repair executed perfectly rob, well done.
Great video!!. I have a StingRay Erni ball from 1992 and the input jack attached to the electronics produces a lot of noise, and a luthier did not know how to repair it. Then they ruined the pickup by adding glue, in an attempt to insert the sharp magnets. I was thinking on buying a Sterling SUB because of the 2 band preamp, and the Sterling StingRay 34 because of the alnico pickup. Do you think thats a good option or maybe I should buy John East 2 band preamp + Aguilar pick up?
i was just messing around with my '94(?) G&L bass and saw something that reminded me of this video. ol' leo must have been a stubborn guy. still no battery switching on the jack. even though there's specifically a switching mono jack installed (not a TRS jack)... that 3rd pin has never seen any solder 🤷♂
The preamps I build sound better than the stock preamp. I use the LT1351 and get rid of the 1M5 resistor at pin 8. The sound is amazing with more detailed highs and mids
That schematic that’s online didn’t match some of the preamps I’ve examined. There’s a modified schematic floating around that I corrected. It is notated “FIXED 9-7-11.” The 220k resistor in the feedback loop is usually 100k.
Thanks, I also have a 78 stingray. It came wired so the battery was always on , something to do with the switch on jack. Where are you based?
Great content! I'm also a bass player and I've started out doing repairs to instruments. I resently restored a 1973 Precision Bass, and I've noticed that the output jack is sometimes cutting out because it is contacting the walls of the rout. Is this something you've experienced? Greetings from Sweden
Great video Rob! I have a 1980 MMSR that seems to have an issue in the pre amp. Treble gets distorted above 50%. Can you share that schematic with me so I can share it with my luthier and try to fix my preamp? Thanks so much!
Great video...
Rob, i'm an Aussie living in the USA but i need some questions answered about my Sterling by MM SB14.... HELP PLEASE!!!
Carbon resistors drifting like that is kind of unusual unless there's a lot of current going through them, in which case they can become damaged due to excessive heat... Some older carbon resistors could be damaged by mechanical shock too... IC front ends can be damaged by electrostatic discharge, but I'd say the thing to check first in a circuit like that would be the caps... Tantalum capacitors of that vintage had a tendency to short out; it was a common problem. Replacements are cheap, if that were my bass, I would just replace all of the tantalums.
Hi. Just a question: Potentiometers type A is for volume and type B is for tone? My Ibanez bass has type B500K for pickups volume and D500K for Tone and I'm confused
Can I have your advice please , Im building a bass with 2 Delano MC4 HE/S dual coil MM pickups , i want the bass to be passive , I bought 2 x toggle switches 2 positions . this will give me hopefully a single and double coil options with each pickup, I have noticed people are putting 3 position switches , for Series , parallel ,phase ,.
I'm from Brazil, and I have a 1978 epoxy stingray. The treble potentiometer is squeaking when turned, and when I close it all the way the bass sound doesn't come out anymore. I already changed the potentiometer for another (C1M) and the problem continues. Do you think it could be a problem with the preamp?
I have a music man bongo that’s completely dead. Any advice ? Or Lutheran you can point me to in New York or the states ?