Sunday, March 24, 2019

Bass Cut (ES 345 and Lucilly Varitone) for a Les Paul

Varitone or Bass cut - mod, lets cut some basses off (customized for a Les Paul)


Hello friends, now I became curious about the varitone circuit (bass cut circuit) used in the gibson ES 345, and decide to try a shot. After a lot of searching for the circuit at internet, I started making experiences in a les paul with a old pickup as the inductor, and I liked the results. Then I bought a new inductor ( 1,5 Henry - I guess) and capacitors, the result, after testing some capacitors values in series, is a custom version for les pauls as bellow, see the final schematic:




A six positions selector switch:




The 1,5 Henry inductor (I've used some hot glue to fix it):




Adding the capacitors and a resistor:






Don't forget:  http://guitar4geek.blogspot.com/2013/05/audio-capacitors-do-have-polarity.html



The complete mod:




The chicken head knob and final result:




Saturday, July 28, 2018

Les paul Pickup upgrade and magnet swap (Seymor Duncan 59 and Pearl Gates)


Les paul Pickup upgrade and magnet swap (Seymor Duncan 59 and Pearl Gates)



Hello friends, Its a humbucker pickups upgrade. I've got tired of my Burstbuckers (not pro) 1 and 2 copy, then I bought a Seymour Duncan Pear Gates Bridge (A2) and a 59 neck (A5), I guessed the 59 sounded a little boomy (lot of basses). The end of the history, I've swaped the pickups magnets: Alnico 5 to Alnico 2.
Now I have a Pearl Gates A5 and a Duncan 59 A2. Showed at the video below:

0:26 neck; 0:45 bridge; 1:05 both pickups



Tuesday, May 1, 2018

Headphone adapter to a 5W 5f1 champ

Headphone adapter to 5w 5f1 fender champ model, resistive passive circuit. Resistive load and a hight-pass capacitor switch (V2).

 

Atention: 

  • Values to a 5W amplifier, not higher.

  • Allways starts to use with the volume at minimal.


First version V1:

 

 

 

Second version V2:


* Porta pro headphones are veeery good.




Wednesday, October 11, 2017

A twenty four fingerboard neck guitar notes chart



These is a map to the twenty four guitar neck, six strings and twenty four fingerboard. Each pentagram below is a guitar string.


The twenty four guitar notes


Monday, July 18, 2016

Stratocaster tremolo piezo + piezo mod

This is a mod to adapt a under saddle acoustic guitar piezo to a stratocaster block tremolo anda a common piezo inside the guitar body.

 

  • Use a rotary tool and a file to make a groove at the upside of the block:


strat block tremolo

strat block tremolo

strat block tremolo



  • ... until the piezo fit it, with only a small part outside:

  strat block tremolo 


  • Screw the other parts of the tremolo with the piezo wire out of the block:

*Maybe you will have to file the wood of the guitar under the bridge, a litle bit, to adapt the extra wire.

strat block tremolo

strat block tremolo



  •  Othewise, if you don't use the tremolo arm, like me, it is possible to use the other side of the block, making a extra hole to pass the wire:


strat block tremolo


strat block tremolo



  •   Set up the tremolo at the guitar, use the grounding hole to pass the piezo wire and conect it to the guitar circuit. Some hot glue will fix better some parts:

strat block tremolo

strat block tremolo
strat block tremolo

strat block tremolo


  •  Next step....fix a common piezo at the inside of the guitar body, near as possible of the bridge, using a double face tape:

     

strat piezo

 strat piezo

strat piezo


The tromolo piezo will have a lot of influence of the coils, producing a lot of reverbation. My sugestion is to mix the two piezos with a resistor (or a pot) like that:

 

strat piezo

* 1M or less... depends on the piezo output level.


Finaly, mixing the pickup mod (http://guitar4geek.blogspot.com.br/2016/06/stratocaster-wire-mod-series-pickups.html) with this piezo mod:



strat mod

*All pots are 500K


strat mod



* Other suggestions:





Tks to Pete from MukerBude.de: http://www.mukerbude.de/_MATERIAL/Anleitung%20-%20Stratylon.pdf


Thursday, June 23, 2016

Stratocaster wire mod - in series pickups switch


Looking at the picture below, the first switch (mod 1) configures the pickups in series:
  • neck+middle (series)
  • bridge+middle (series)
Besides that, a second switch (mod 1b) inverts the middle pickup, making the sound thicker or thiner.

The mod 1 switch also connects the tone control to the neck+middle "fake" humbucker.

*All the pots are 500K, making a more open sound and helping the basswood body limited tone response.








  • Mod 1 ON, mod 1b OFF and strat switch in position A: bridge+middle with thin sound
  • Mod 1 ON, , mod 1b OFF and strat switch in position B, C, D: mute
  • Mod 1 ON, mod 1b OFF and strat switch in position E: neck+middle with thin sound 

  • Mod 1 ON, mod 1b ON and strat switch in position A: bridge+middle with thick sound
  • Mod 1 ON, , mod 1b ON and strat switch in position B, C, D: mute
  • Mod 1 ON, mod 1b ON and strat switch in position E: neck+middle with thick sound



Some real pictures:








Friday, June 10, 2016

The new cabinet tolex mod - fender color alike

This is a new face for the little cabinet of my 5F1 clone, I only take of the brown tolex and put in a yellow one (fender alike).

Lets see the tolex mod:

  • The old style

  •  Take it off
  • Lots of work
  •  New style












  • The amplifier guts version 2.0 with updated pictures (2016):