Tools, Tones and Toys for Guitarists
Request. The transistor may be difficult to get hold of but you can try other PNP silicons in its place. The datasheet suggests the hFE of the 2N4061’s was 90 – 330, but check the pinouts of your replacements and insulate/twist the pins if necessary to match the layout. The filter created by the 1n … Read more
And the original version. You can supply this with 18V if you want the extra headroom, but if you are likely to do that make sure you choose appropriately rated caps. Xotic’s info: What do the tones of renowned guitarist such as Page, EVH and Johnson have in common? They all used the legendary echo … Read more
Requested. This is a modified version of the Xotic EP Booster, done by Fred Briggs and seen on his blog La Révolution Deux. Have a look around there and you’ll find some really interesting articles and information about many modern and classic effects. This version includes the voltage converter to provide 18V from a 9V … Read more
A nice versatile booster here by Bjorn, with switchable buffered or true bypass switching. I have kept the buffer separate so those who just intend to use it true bypass don’t have to bother with the extra components or board size. Manufacturers info: BJF design guitar booster/treble booster pedal with master volume Mad Professor Ruby … Read more
Layout updated. If you want to build this now I would suggest you build this version http://tagboardeffects.blogspot.com/2014/02/keeley-katana-boost-layout-rev-2.html Vero layout for this popular pedal with built in charge pump to provide the required 18V from a 9V supply. UPDATE (09-02-2012): The schematic that this layout was created from has been shown to be incorrect. In … Read more
I did this one a while ago and it has been posted on a number of forums but just realised I haven’t shared it here yet. Update 22nd June 2017: Some information that was very generously shared by Bjorn about this circuit Hi Mark, For your blog: The original BJF SBEQ used 2N3819 transistors selected … Read more
For fx40b, one of the sites senior testers! :o) This one is confirmed, enjoy
As requested. It isn’t verified yet but certainly seems to match the schematic to me, so if anyone builds it then please let me know so I can log it as verified. It will fit perfectly in a 1590B, but you could even shave a column off the left hand side if you don’t mind … Read more
