Make Your Own Vacuum Tube
Got any 16 mil tungsten wire laying around? More info: http://tubecrafter.com/ Copr. 2008 by Jack Orman Visit my site to learn more about guitar effects, download free projects or buy pc boards and...
View ArticleStompbox Patents
I have added the Maestro Fuzztone patent to my page of effects related US patents. I often see users comment in online fx forums that you cannot patent effects pedal circuits, which is not true, as...
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1P6T Rotary Switch
This is the 6-position rotary switch as sold by Small Bear and other online stompbox parts vendors. There are two sets on connecting pins; the front set of 5 which are closest to the shaft, and the...
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Small Signal Transistor Packages
I posted photos of several types of small signal transistor packages in the Lab Notebook. Copr. 2008 by Jack Orman Visit my site to learn more about guitar effects, download free projects or buy pc...
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Notch Tone Control
A bridged-t notch tone control in the Lab Notebook. Enjoy! Copr. 2008 by Jack Orman Visit my site to learn more about guitar effects, download free projects or buy pc boards and germanium transistors.
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AC176 Germanium Transistors
I sorted through a bag of AC176 NPN germanium transistors. There were 100 transistors in the sealed bag, and above are the cups with the results of the sorting. The one on the right is very low gain...
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Delay Time Calculator
Calculate the number of milliseconds delay to enter into your echo pedal. Copr. 2008 by Jack Orman Visit my site to learn more about guitar effects, download free projects or buy pc boards and...
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AC125 Germanium Transistors
I have a limited number of AC125 PNP germanium transistors available. I bought a bag of 150 pieces and got around 60 good ones out of them (40% yield). The remainder were very low gain and only...
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PAM8403 Class D Audio Amplifier
PAM8403 Class D Audio Amplifier I bought 5 of these amplifier boards from an Ebay seller for $6.55 which included shipping from Hong Kong. At only $1.31 per finished amplifier, I could not come close...
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Calculate Slew Rate
How Fast Does your Opamp Need to Be? This calculator is used to find the slew rate needed to reproduce a signal at a specific frequency. For example, the 0VU level of the -10dBV signal used in most...
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Big Muff Calculator
This calculator is used to determine resistor values for the basic shunt feedback transistor circuit to set the proper DC operating point. Very useful in converting BMP gain stages to use germanium...
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Fuzz Face Calculator
This calculator is used to determine resistor values for the basic fuzz face circuit to set the desired DC operating point. Go to the Lab Notebook and try it out.
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Gearphoria
My website was mentioned in the March/April issue of Gearphoria magazine in the Workbench Confidential column by James Lebihan (of Mission Engineering). You can read the article online on the...
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Tone Report Issue 70
Tone Report Weekly Issue 70 mentions my Mosfet Booster in their Ultimate Clean Boost Buyer’s Guide (page 10). Many thanks to the Tone Report crew for their kind comments! Copr. 2008 by Jack Orman...
View ArticleGibson Acquires HarmonyCentral.com
Gibson Acquires HarmonyCentral.com http://www.harmonycentral.com/gibson-brands-acquires-harmonycentral.com Gibson wants an entertaining site for people who are passionate about music. Let’s hope HC can...
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Notch Tone Control
A bridged-t notch tone control in the Lab Notebook. Enjoy! Copr. 2008 by Jack Orman Visit my site to learn more about guitar effects, download free projects or buy pc boards and germanium transistors.
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20 Years!
This month marks 20 years of continuous publication of the AMZ web site, though in the first few years it was called DMZ. I launched the first web page in August 1995 when the first AOL members web...
View ArticleGear Guys Radio Show
Woohoo! Got a shoutout from Robert Keeley on a recent episode of Gear Guys Radio! Thanks, RK! Copr. 2008 by Jack Orman Visit my site to learn more about guitar effects, download free projects or buy pc...
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Mini-Booster Modules
Coming soon: pre-assembled Mini-Boosters! Just wire them into your pedal enclosure with the switch and jacks. Copr. 2008 by Jack Orman Visit my site to learn more about guitar effects, download free...
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Keeley Oxblood
New Pedal Day! Keeley Electronics Oxblood Overdrive: Copr. 2008 by Jack Orman Visit my site to learn more about guitar effects, download free projects or buy pc boards and germanium transistors.
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