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Tech Corner

Welcome to the Amplified Parts Tech Corner. This is where you can find useful technical reference information to help you better understand our parts. Click on a topic below to see more about it.
12AX7 Comparison of Current Made Tubes
A comparison of some of the most popular 12AX7s currently being produced. Use this chart as a starting point to find which current production 12AX7 will work best for you.
12AX7 Tube Diagram
This diagram includes a tube pin-out for a quick reference. There's also a drawing to help you identify the physical structures you can see beyond the glass of a 12AX7.
6L6GC Comparison of Current Made Tubes
A comparison of some of the most popular 6L6GCs currently being produced. Use this chart as a starting point to find which current production 6L6GC will work best for you.
6L6 Tube Diagram
A drawing to help you identify the physical structures you can see beyond of the glass of a 6L6GC.
Accutronics Products and Specifications
Use this to understand the Accutronics reverb tank codes and help identify a mystery tank.
The Audible Frequency Range and Describing Tone
Some tips to help with describing tone in a way that everybody can more easily understand.
Basic Electric Guitar Circuits 1: Pickups
The first of three articles on basic guitar electronics. Learn how passive single-coil and humbucker pickups work.
Basic Electric Guitar Circuits 2: Pots & Tone Capacitors
The second of three articles on basic guitar electronics. Learn how pots and caps work.
Basic Electric Guitar Circuits 3: Switches & Output Jacks
The last of three articles on basic guitar electronics. Learn how switches and output jacks work.
Capacitance Converter
Type in a value of capacitance and convert quickly between mF, uF, nF and pF.
Common Electric Guitar Wiring Diagrams
Wiring diagrams for some of the most popular electric guitars including: Tele, Strat, Les Paul, PRS, ES-335 and SG.
Note: each wiring diagram is shown with a treble bleed modification (a 220K resistor in parallel with a 470pF cap) added to the volume pots.
Guitar Diagram
This drawing of an imaginary guitar points out the names of common electric guitar parts.
Guitar Speaker Power Handling
Learn about guitar speaker power handling to help choose a speaker to last a lifetime.
Jensen Tone Chart
A quick comparison of current production Jensen guitar speakers including sound samples and technical specs.
Orange Drop Capacitor Codes
Learn how to identify the value of capacitance for your orange drop cap based on the cryptic codes like 223K.
Potentiometer Taper Charts
Resistance vs. shaft rotation plots for some common potentiometer tapers.
Resistor Color Codes
Learn how to identify the value of resistance for 4 band and 5 band color code resistors.
Resistor Value Calculator (4 Band)
Select the colors of each band on a 4 band resistor to quickly identify the resistance and tolerance.
Resistor Value Calculator (5 Band)
Select the colors of each band on a 5 band resistor to quickly identify the resistance and tolerance.
Speaker Diagram
This drawing will teach you the names of guitar speaker parts.
Speaker Impedance, Power Handling and Wiring
Learn how to match your guitar speaker(s) to your amplifier based on impedance and power handling (Includes the formulas for parallel and series resistance).
Spring Reverb Tanks Explained and Compared
Learn about the inner workings of a spring reverb tank and what each part of the Accutronics code means.
Useful Conversion Factors
A listing of the prefixes from femto to tera and what they represent. There are also some common length, weight and temperature conversions.
Yellow Jacket Tube Converter Technical Information
Just about everything you need to know from the technical side to help choose Yellow Jackets for your amp.
We plan to continually develop the Tech Corner based on customer feedback to answer common questions about our parts. If you have a technical question that is not explained above, please Contact Us