[1654] Mini vs Mos Distortion

Date: October 17th, 2014 | Comments : none | Categories: DIY.

Minibooster-Mosfet distortion graph

I measured the distortion components of a mini-booster and mosfet boost for comparison.
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[1645] FV-1 Dev Board

Date: October 8th, 2014 | Comments : none | Categories: DIY.

FV-1 test board

Here is my FV-1 prototype setup.
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[1629] Through-Hole J-Fets

Date: July 19th, 2014 | Comments : [1] | Categories: DIY.

BF256 jfet

As previously reported, many through-hole jfets have been discontinued and the prices for old stock has gone up 4x to 10x in recent weeks.

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[1598] FCC Part 15 requirements for pedals

Date: July 14th, 2014 | Comments : none | Categories: DIY.

EHX Part 15 compliance

Over EIGHT years ago, I posted a note over at DIYstompboxes about testing requirements for digital devices, including guitar effects pedals. This subject has come to attention more recently as several manufacturers have been fined large sums of money for not complying with the rules.
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[1619] EHX B9 Organ Pedal

Date: July 14th, 2014 | Comments : none | Categories: DIY.

EHX B9 pedal

The EHX B9 organ pedal is an excellent sounding box, but not without problems:
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[1604] Install EZ Drummer 2 on Windows XP

Date: May 21st, 2014 | Comments : [5] | Categories: DIY.

Proceed at your own risk! You need a Microsoft program called orca.msi     Get it here or here.

Install orca and then use it to modify the settings in the EZdrummer2_32bit_install.msi (or EZdrummer2_64bit_install.msi). There are other Msi Editors that can do the same job, but I used Orca.

Load the EZdrummer2 installer into orca and then search for VersionNT>600

VersionNT>600 is only found once in the EZD2 installer. Change that entry to VersionNT>500 and save (only work on a copy of the installer!)

Once the LaunchCondition has been changed to VersionNT>500 EZD2 will install on XP.

I did this last night, authorized my new EZD2 online at Tootrack’s site and then loaded up a Reaper project that already had EZD in it. It worked like a champ.

As soon as you have EZD2 open in your first project, you will need to go to the Menu in the top right of EZD2 and rebuild the database. Also, check Toontrack for upgrades to any extra drum packs you have purchased.

Proceed at your own risk! This worked for me but it may not work for you. Only work on a copy of the installer msi!!! Toontrack will (probably) not provide you with any support for use on XP.

Good luck, Jack

 

[1588] Buffer & Direct Box

Date: April 20th, 2014 | Comments : [3] | Categories: DIY.

AMZ Direct Box & Buffer

My latest project is a buffer/direct box that I made using surface mount components.
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[1573] EHX Satisfaction Fuzz

Date: March 24th, 2014 | Comments : [2] | Categories: DIY.

EHX Satisfaction Fuzz

The Electro-Harmonix Satisfaction Fuzz has been rumored to be a Maestro FZ-1 but after looking at a pcb photo that I saw in one of the guitar forums, it appears to be a Jordan Bosstone. The part numbers are even the same as on the Bosstone schematic I found.

You can’t build one for the price EHX is selling it, so I suggest that you go to your favorite online retailer and buy one. Since it uses through-hole parts on some of the important components, you can even do mods on it without too much trouble.

Check out the demo video: http://youtu.be/WD6BzUqqrsQ

 

[1567] CLM6000 Replacement

Date: March 24th, 2014 | Comments : none | Categories: DIY.

CLM6000 data

Several of the classic Craig Anderton projects used the CLM6000 optocoupler, which has become difficult to find. The question then is what to use as a replacement for it. I downloaded the CLM6000 datasheet and then checked the Silonex datasheets to find a similar part.

It turns out that the NSL-32 opto is almost an exact duplicate. It is so close that it is likely to have been originally developed as an alternate to the CLM photo-resistor. Click on the image above for a full size datasheet comparison.

Small Bear sells the Silonex NSL-32 but be sure to get the basic part, and not one of the revised versions with additional suffixes, such as NSL-32R2. You want the basic NSL-32 if you are looking to use it in place of the CLM6000.

 

[1563] Tinaja Quest

Date: March 24th, 2014 | Comments : none | Categories: DIY.

While searching for a detail about mosfets today, a search link led me to Don Lancaster’s Hardware Hacker archives. I had not been to his site in a long time, and while much of the computer info is outdated, the basic electronics stuff is still golden.

There is a wealth of info there, so check it out at http://www.tinaja.com/

See if you can find the Marcia Swampfelder archives for the lighter side…