askwho69
This circuit is a voltage gain amp like MXR microamp, see the ground signal next to the first 1uf cap, it's not a differential preamp, if you intend to use this as a internal booster maybe it work, but we have much better optional circuits like EMG PA, tillman, tens of jfet and mosfet boosters.
EMG Active Pickup Circuit?
-
EddieTavares
- Breadboard Brother
-
rasta_maleek
- Resistor Ronker
cheers.happy helloween
- Attachments
-
ACTIVE PICKUPX6 PNP.pdf- (91.65 KiB) Downloaded 920 times
-
- ACTIVE PICKUP LAYOUT.pdf
- (11.65 KiB) Downloaded 720 times
-
- ACTIVE PICKUP SCHEM.pdf
- (11.94 KiB) Downloaded 1055 times
-
Jarno
- Resistor Ronker
Information
- Posts: 345
- Joined: 12 Nov 2008, 10:18
- my favorite amplifier: Something nice
- Completed builds: Alembic-like state-variable and sallen-key filter preamps
Lovepedal Eternity
Phase 100
Brown source
Fuzz Face
Flipster
Alembic F2B (tube preamp)
Opamp and FET buffers
Loads of speakercabinets and ampracks
Busy building a modular synth (ssm2044 vcfs, preamps, ADSR's, VCO's, VCA's)
Tables
Bookshelves
Basses
So many things! :D - Location: Rosmalen, NL
- Has thanked: 27 times
- Been thanked: 75 times
Nice! Did you try it already?
Going to a SOIC opamp could shrink this down even further (and is still somewhat possible to handsolder).
Going to a SOIC opamp could shrink this down even further (and is still somewhat possible to handsolder).
"It crackles....., but that's ok"
-
rasta_maleek
- Resistor Ronker
Yes, i did it no vero board. But i got some time to do it on eagle cadJarno wrote:Nice! Did you try it already?
Going to a SOIC opamp could shrink this down even further (and is still somewhat possible to handsolder).
-
andregarcia57
- Cap Cooler
someone has schematic Seymour Duncan Modular preamp?
I have a few questions.
how we can modify the circuit to produce different sounds, such as the single-coil? The coils are connected in parallel, so it's not quite humbucker. What sound we get using the stack-humbucker(humcanceller)?
how we can modify the circuit to produce different sounds, such as the single-coil? The coils are connected in parallel, so it's not quite humbucker. What sound we get using the stack-humbucker(humcanceller)?
-
EddieTavares
- Breadboard Brother
HULISRAKA
If you want to use the emg circuit that is a basic differential preamp the "Secret" to achieve a more single coilish tone is to use unbalanced input gains, eg: 5db in the non inverting input and 8db in the inverting input. The more unbalanced is this relation more noisy, trebly and single coilish would be the tone.
But you have to know that this activated pickup will never sound exactly like a single or real humbucker. I tried it with a dimarzio Virtual Vintage solo and it sound great but nothing about real single coil.
If you want to use the emg circuit that is a basic differential preamp the "Secret" to achieve a more single coilish tone is to use unbalanced input gains, eg: 5db in the non inverting input and 8db in the inverting input. The more unbalanced is this relation more noisy, trebly and single coilish would be the tone.
But you have to know that this activated pickup will never sound exactly like a single or real humbucker. I tried it with a dimarzio Virtual Vintage solo and it sound great but nothing about real single coil.
-
andregarcia57
- Cap Cooler
I have one on my guitar JB / seymour jazz kit
I read that Seymour Duncan Livewire Dave Mustaine Active is the same kit that only active, most found nothing about
Anyone know of some schemematic?
I read that Seymour Duncan Livewire Dave Mustaine Active is the same kit that only active, most found nothing about
Anyone know of some schemematic?
-
EddieTavares
- Breadboard Brother
Is this what you mean?HULISRAKA wrote:I do not know how true this is , but there is a scheme for single-coils http://guitar.ru/articles/pickup/sound-pickup_318.html
It's ok. It works but all emg pickups are dual coil staked or humbucker design.
-
EddieTavares
- Breadboard Brother
It is the same circuit with a tone shaper.
I will try to explain what I mean. For example, I'll use a preamp with hum canceling pickup (stack-humbuckers). It will sound like blackout humbucker. Because the preamp is not configured to sound like a single-Coil
-
EddieTavares
- Breadboard Brother
Active pickups are always actiive humbukers. I like the way that they sound but you will never get the classic tone with those, they are silent and they have a perfect tone, I think that they are excessive perfect.
-
rcustoms
- Resistor Ronker
Information
hi folks
last days some customer send me a fake EMG pickups(chinese versions of 81 and 85 models),that really sound very bad ,a microphonic noise issue .and tell me that do some magic with this pieces of s....., ok i will try but i don`t made miracles.
let`s open those units ,with my mototool y cut very carefully the black epoxy resin and find this:
and see ,looks like new version of the preamp. maybe the real EMG circuit?or maybe chinese mod?
the most particular think,the big rectagle with the center hole and 470k resistor marked as RX .for what purpose? this rectangle fits exactly with the magnet .let me do some wire schematics
last days some customer send me a fake EMG pickups(chinese versions of 81 and 85 models),that really sound very bad ,a microphonic noise issue .and tell me that do some magic with this pieces of s....., ok i will try but i don`t made miracles.
let`s open those units ,with my mototool y cut very carefully the black epoxy resin and find this:
- Honeyview_20151118_144139.jpg (40.3 KiB) Viewed 4403 times
the most particular think,the big rectagle with the center hole and 470k resistor marked as RX .for what purpose? this rectangle fits exactly with the magnet .let me do some wire schematics
- Attachments
-
-
rcustoms
- Resistor Ronker
Information
a quick schema
- Honeyview_2015-11-18 22-34-23-1.jpg (29.25 KiB) Viewed 4400 times