Hi, I found a cheap passive stingray bass copy and I build a simple pre amp with spare part I already own, I could have build the OG pre but I do not own a low current opamp and in my country is not easy to get reverse log pots. So I put a Tillman in the input, followed by a scaled james tonestack and a lpb1 boost as recovery, it sound pretty good for a fast and simple point to point build. Some problem, flat is not in the 50%, 50% position is more like in the 50%, 60%.
Hi folks
First thanks to pf_fan for his encouragement and pictures, and a special thanks to the nice person on the EMG forum for providing some nice hi-res pictures of an SPC and EXG circuit board.
Now to the nitty gritty :wink:
EMG produce a range of active tone controls, but the most popular configuration is that used by david gilmour in his red strat - the DG20.
The most recent version is completely solderless with push on connectors and all the componentry is hidden between the rear of the...
I've got a 5 string Stingray Piezo and now trying to replace its onboard preamp (want to swap it with Darkglass Tone Capsule - as for me, it works with more sweet frequencies). I don't need piezo and actually don't like how it sounds, so I just cut it off.
Since SR5 pickup has dummy coil, its wiring varies from traditional humbucker and proprietary ErnieBall switch with 15 pins is used in SR5s.
Just wondering if anyone has schematic of wiring such pickup with ability to switch coil...
I’m planning a guitar build and trying to figure out the electronics wiring. I don’t fully understand switches, whether to us a DPDT or a 3PDT on/on/on.
Then a separate mini-toggle: up - middle pickup only (shuts neck & bridge off). Middle - uses only the 3 way blade, for just neck/bridge options. Down - middle brought in with the neck/bridge.
But...however, I have made a copy that works fine.
875276590348dd41b40c61e691ca565.jpg b7926fa2e2d80863e8cb8cec6c519f5.jpg
63f5549eaed2fadf4ffd520a69f18a7.jpg 8d160049f2afacbc94714173bf45e65.jpg
————————————————————————————————————————
The progress of the reverse engineering will be updated again after a while...
60163d4eae5a0b96788345b085ccf34.jpg
Here it is... I opened one up for a local shop. A guy had his painted (!!!) and the painter hacked his wiring up, shoved it into the control cavity and gave it back to him. Duh, my guitar doesn't work. So the lack of available schematics etc. made this one a little more than your average rewire. The little board on the back of the varitone pot has all the connections labeled though, so tada, here it is kinda half wiring half schematic.
right click on the image for full view:
Need help finding a proper switch sourcing info.
And clear wiring diagram.
It seems there is a need to connect to the 2 poles to have the inductor connected properly.
help!
I'm one of those guitarists who does not live without volume and tone controls, I am used to set my amp with more highs and cut this excess in the tone control, when I want my guitar more expressive I turn the tone a little way up as a result it works as a second volume control that avoids gain losses.
Strat control tone works ok, but they are effective after 5 and its a little aggressive at the begnining (3 to 0), this circuit I have implement in one of my strats in the bridge...
I recently had the pleasure of repairing the preamp on a 1977 Ovation Country Artist 1624-4. The primary complaint was that the guitar did not work when plugged in. To make a long story short, after audio probing through the circuit, I first determined the electrolytic caps were dead, followed by determination that the JFET was dead as well. After replacing the electros (C3 & C4) and tranny (didn't have a 2N5459 handy, but used a 2N5458 with great results), it sounded very nice.
I am the proud owner of what is called a cowpoke bass. This is a bit of an odd Fender bass having 22 frets and an active preamp. It has been produced in Mexico for only about two years (94/95). Some belive the preamp was designed by Mr. Kubicki as this was the time Fender had a collaboration with him. Other say it was designed by Fender themselve. This thread over at talkbass is about the best source of information for those basses.
Well, mine did show a problem with the output signal being...
Very recently, I learned that Ibanez have apparently had a preamp in their basses which had a variable filter, called Power Curve. In the 80's-90's SR series basses, apparently.
I am wondering if this is similar to what Alembic has for their filter preamps, or something else.
Does anyone know more? Does anyone have a schematic for this preamp?
Keen to learn more about this.
Hi. Wiring up my pups in series with a on/off/on switch (like vintage duosonic). Have found a toggle switch that might do the job but am noticing a symbol beside the center lug that I do not recognise.
Here's a pdf book containing three version of Ormond Sparks articles on electric guitars as published in Practical Mechanics in 1937. The article was reworked in 1943 and then republished in 1953...
So a while back I picked up an Ibanez Gio GSR200 bass off of craigslist for cheap, and though it sounded kinda like crap with everything on it stock, I got infatuated with the onboard preamp it came with, especially after opening it up and seeing that it was a relatively simple circuit. Well, I've been working on tracing it for a while, and after a good amount of trial and error, I finally built a working copy and drawn up a schematic. The circuit is compact and fits comfortably in...
I've had this bass in for nasty buzz and hum that got even worse after someone else's attempt... Wires were very thin and brittle, shielding paint was somehow inefficient. So I went rewiring it all and properly shielding it. It is dead quiet now, and plays really well. I did change some of the stock caps (on the preamp and tone control) for better quality ones (these were like the plastic transparent ones found in many Boss pedals). I do like the active preamp, it's a nice feature on this...
I'm looking for an installation manual and/or schematics for an early version of the Fernandes Sustainer circuit. I bought a guitar from the early 90s, the Sustainer works, but the wiring is a complete mess and the lever switch is broken. The circuit has only two trimpots and no coil on the pcb. The driver pickup isn't rounded like the new version, yet. Must be a very early version of the 401 circuit.
I found an interesting phenomenon in a guitar I rewired recently. The cavity is shielded extensively with copper foil, but I was still getting a hum that seemed much louder than it should have been. I knew the problem was likely because of long wires: this is temp install of a new pickup to test it out - it goes into a different guitar later - so I left the leads long. What I had done was stuff the excess wire underneath the pickup. I had hoped that since it has copper everywhere, it would have...
Hello
I want to include a high pass filter in my les paul, i think it will be a usable tone, kind of giving it more of a strat tone.
All the schematics i've seen from high pass filters include a resistor to ground after the capacitor, like this:
On the other hand, on the wiring schematics (from guitar related sites) like the reverend schematic they only use a resistor to blend the capacitor in the circuit, they don't include a resistor to ground after the capacitor.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum
Last post
jeepe 
Last post
zfrittz6 
Last post
The G 
Last post
GuitarlCarl 
Last post
Cub 
Last post
EddieTavares 
Last post
JiM 
Last post
rcustoms 
Last post
blackbunny 
Last post
bumblebee 
