Hi,

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.

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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.

So what's the deal...

Anybody have a schematic for the booster circuit found in 80s BC Rich guitars and basses or maybe someone has a BC Rich that can post some pics? Need to build one to replace the missing circuit in my 80s Fernandes Eagle copy.

A 2-band bass preamp with good bass frequencies for this era.

This one wasn't on my to do list but I had enough info to put something together.

From what I can work out the Vcc/2 biasing is like this.

Any comments or corrections welcomed.

Found some pics the other day a put this together.

Sterling SUB Ray4 Bass

The preamp seems to following the Tobias version of the HAZ Labs preamp.

Technically the Bass pot value is unverified but I can't imagine it not being 100kB.
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Wiring

The stock wiring uses a 500k A? volume pot.

Even for stock wiring there are three variations of wire colors.
On the web there's a version which has a 25kA volume pot
this seems to be a mod.

Someone mentioned a 250kA volume...

does anybody have the baja schematic for active pickups??, id would like to try it but i have seen many different sch everywhere, so im looking for it in here, if BAJA can tell me will be amazing, looking for the EMG81, also if anybody have the LM4250 on smd eagle library its welcome too

I have a tele style I'm building... HSS nashville style with a humbucker bridge. I've got two concentric pots, cts 500k/250k. I can use a 3 way blade or a 5 way blade. I'm thinkin'... master vol / neck tone and mid pup blender / bridge tone with a 3 way controlling the neck and bridge pups. :blackeye I'd love to have the single coils on one pot and the humbucker on the other but the switching has me stumped without purchasing a new superswitch... I'm using a stock tele control plate. Anybody...

Right off the bat, I'm certainly not condoning fake name brand guitars nor am I suggesting you misrepresent the origin of your gear. As you will see, these labels are 100% honest, clearly worded and for anything other than a quick glance will fool no one. That said I want to share how, using no special materials, to add these novelty logos to your guitar headstock and make it look like a factory job.

The two logos use different techniques, first the F brand .....

To do this logo right, it...

OFFER #2

LAKLAND LH-3 BASS PREAMP

so in a jazz bass the single coils have one reversed wound for the hum cancel.

If you add in a dummy coil, would the dummy coil itself need to be like a hum bucker with 2 windings? so if either pickup is solo'd you select one of the dummy coils and then the other pickup gets the other dummy coil?

Or in such a situation, do you only need one dummy coil and it doesn't matter the way its wound?

Been thinking of making a dummy coil and testing it out.

Dear all, I'm designing a custom bass wiring and it would be great if you could give your feedback & comments. This was asked from a friend of mine who needs many tonal possibilities from his instrument, here are his requests:

3 x passive pickups: 1 x neck + 2 x bridge
Possibility to combine the bridge pickups in series (with 1 x volume) or in parallel (with separate volumes for each pickup)
Possibility to mix neck&bridge: neck only, bridge combination only (see item 2), neck + bridge...

Hi,
I have another newbie question,
is it possible to use old computer speaker box, change the input and speaker for 1/4 jack.
Put it in an enclosure and use it as maybe a boost..or kind of preamp..?
Is it worth to try or will i blow something?

Hi,
Here's a newbie question: i found a Recoton 4 way 10db uhf/vhf/fm amplifier in the new house we bought.
Is it possible if i change the input and output jack, to use it as a splitter? or maybe a booster?
I was thinking to use something like this to split my signal on my pedalboard.
It will be great if i can use it since it's free.
Thanks alot!

hey,

im picking up a 1989 charvel model 1a next week, which is configured like a strat (SSS, 1 vol 2 tone, 5way switch). i want to swap out the single coil in the bridge for a duncan phat cat, which is a humbucker sized p90.

now, the problem is, the p90 requires a 500k vol pot, the single coils 250k. so i figured, the best way to wire this up would be 1 volume and no tone pot for the p90 in the bridge, and for the middle and neck single coils to share a volume and a tone pot.

only problem...

Hello, I hope that is the right place to ask.

Can someone tell me what frequencies an electricial Guitar puts out?

The highest Tone is the high E String @ Fret 24 at my Guitar. If it is tuning right, it must be a frequence around 1318,5Hz (Tone e''').

Now at an Schematic found at the Internet, the builder puts an 470pF Capacitor parallel (to the pulldown resistor) to ground at the Input before the Grid-Resistor. If I take the formula Fcuttoff=1/2PiRC at take the Outputimpedance of my...

hello again diy musicians..

any body here knows the inside guitar wiring of Tremonti PRS guitar? the exact wiring cavity inside of that guitar with real wire pictures of pot inside of it..because I want to rewire my guitar like tremontis anybody knows here where I can find it? I check the prs website is not there..

thanks

I am trying to simulate the G&L PTB circuit as shown in the schematic that was previously available in the G&L website.

I am having trouble getting the treble cut to work. The treble stays the same regardless of the value of VR2. Any hints as to why it isn't working would be nice. Thank you!

VR1 = Bass cut
VR2 = Treble cut
VR3 = Volume

ptb.png

I have one strat that is wired with a Seymour Duncan jb and texas specials that uses the outside coil in auto split mode with with the middle pickup. It isn't out of phase and it noise cancels perfectly. I racked my brain with this but left it as is because I feel the tone is much better for some reason. So knowing this, I bought another jb to wire in my other strat the same way with texas specials as well, but it used the inside coil like it is supposed to. I ended up selling the jb and...

A few days ago in my service popped in LGXT Godin guitar for repair.
The guys from the company RMC did not want to give me schematic for Poly Drive X preamp,
so I had to draw it. This is my drawing of the preamp for all those who need it as a reference or personal use.
More photos and information from my workshops on my Facebook page.

This is a seventies' Strat which should be all stock (though the pickups do seem a bit strange to my unexperienced eye... non-staggered polepieces). But look at this pickup configuration mass / negative pole - all three pickups are going to a 330nF capacitor, and then to ground. The rest of the wiring, upon a brief survey, appears stock.

It should not even work, maybe. But the owner (a great guitar player) swears by it - more sustain and a sort of compression unobtainable in any other way,...

This eq is a new electronics for some model from esp guitars and lakland basses

USA55-69tetsuya.jpg
USA55-69tetsuya

the preamp - eq
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schematics based on lc-1

LAKLAND TETSUYAschem.pdf

layout and parts

Untitled-3.jpg

thanks to our friend ken for his interpretation and drawings

more info

PremiumBassParts-by-tetsuya-Assy.pdf

Hope you find this interesting.
Good as I could do with the time and info I had.
Few small things could be cleaned-up, as noted in the notes section.

Any comments welcome.