[2701] Ibanez MT-10 Mostortion

Date: May 9th, 2020 | Comments : [1] | Categories: DIY.

It is possible to make an overdrive on the SoS pcb that has most of the important characteristics of the Ibanez MT-10 Mostortion. It will not be an exact duplicate but the essential characteristics are present.

I have added the parts list and instructions to the support page for the AMZ SoS pcb.


[2699] Free Download

Date: May 6th, 2020 | Comments : [1] | Categories: DIY.

Free download from the publisher:

Practical Electrical Engineering

Authors: Sergey N. Makarov, Reinhold Ludwig, and Stephen J. Bitar



[2693] AMZ Buffer Module

Date: April 23rd, 2020 | Comments : none | Categories: DIY.

The AMZ Jfet buffer module is back in stock (and out of quarantine!). It is shown in my hand for size comparison. It is about twice the size of my thumbnail. More info on the pcb order page.


[2679] Instagram

Date: April 20th, 2020 | Comments : none | Categories: DIY.

You can find photos of electronic projects on my Instagram page.

More to come. Click the link to Follow Me!


[2692] Test Jig

Date: April 18th, 2020 | Comments : none | Categories: DIY.

This is not a pedal. It is a test jig for measuring the characteristics of the Rat gain stage and the influences of different op amps that may be used in it.


[2688] Free PCB

Date: April 6th, 2020 | Comments : none | Categories: DIY.

Order any blank AMZ pcb at this time, and I will include a free pc board for the Electra distortion. Just note “Free Electra pcb” in the comment section when you check out.

This offer is for any of the unpopulated pc boards, such as the Mini-Booster pcb, Mosfet Booster pcb, Multi-purpose transistor, SOS Overdrive, Power Supply, Voltage doubler, etc. Limit of one free Electra pcb per order.

View the Electra pcb support page.


[2686] LM386 as Oscillator

Date: April 4th, 2020 | Comments : none | Categories: DIY.

LM386 power amp as an oscillator. See the video in my Instagram.


[2684] Still Shipping

Date: March 26th, 2020 | Comments : [1] | Categories: DIY.

The whole social distancing thing sucks. Everyone realizes it, but on the good side, we can take the opportunity to work on all of those projects that have been collecting dust! I’ve worked on more projects in the last couple of weeks than I did in the previous 6 months!

I am still able to mail packages to anyone in the USA. All of my pc boards and packaging material was on-hand since late last year so it has not been exposed to any external contamination. I cannot guarantee what the postal workers do with it once they have to process the package, and the best idea is to place every package that you receive on a shelf for at least 24 hours before handling or opening it. However, I still make a trip to the post office once or twice per week to send out orders.

If you order any AMZ pcb at this time, I will include a free pc board for the Electra distortion. Just note free Electra pcb in the comment section when you check out.

AMZ PC Boards for sale

Stay safe!


[2683] Vintage EHX Muff Fuzz

Date: March 19th, 2020 | Comments : none | Categories: DIY.

In a discussion about op amp fuzz pedals at DIYsompboxes, it came to light that the schematic for the EHX Muff Fuzz that had been floating around for years had a number of errors. With the help of the generous contributors on the forum, I drew a schematic from pcb pictures that were posted.

If you want this new schematic for the EHX Muff Fuzz then check out the AMZ Schematics page.


[2658] How BBDs Sample Audio

Date: February 2nd, 2020 | Comments : [1] | Categories: DIY.

“An analog signal is one that is continuous in both amplitude and time.”

A bucket brigade device (BBD) does not render audio continuuosly in either time or amplitude. We can take a look at the inner working of the BBD chip to see why this is true.




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