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Amplifier Circuits:  Power Circuits
Power Amplifiers:  #'s - C        D - K        L - P         Q - S        T - Z

Amplifier -- Main Page

Last Updated: November 21, 2017 05:44 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Thor -  The Thunderchief project, released in March 2004, was the first runoffgroove.com circuit that was developed using the tubes-to-FETs process.  Enlightened and inspired by Doug Hammond's excellent Meteor circuit, we used the same approach in an effort to capture some of the legendary magic of the Marshall Super Lead.  The circuit's performance pleased us, but there were issues. __ Contact: holler @ runoffgroove.Com

Three Channel, Single Supply Video Line Driver (AC Coupled) -  The LT6553 ultra-high-speed triple video driver configured for single-supply AC-coupled operation.  This part is ideal for HD or high-resolution workstation applications that demand high bandwidth and fast settling.  The amplifier gains are factory-set to two by internal resistors __ Linear Technology/Analog Devices App Note, Mar 25th 2010

Timer Remembers Your Rhythm -  01/05/95 EDN-Design Ideas The unpretentious controller in Fig 1 remembers the interval between your pressing its start and stop buttons.  Thereafter, the controller switches the load on and off every day at the same times as you did.  You reset the controll __ Circuit Design by MS Nagaraj, ISRO Satellite Centre, Bangalore, Karnataka, India

Tone Filters for Electronic Organs -  As the organ is a sustained-tone instrument, achieving a satisfactory imitation of the steady-state acoustic emission of organ pipes is of paramount importance. In this respect, the design of the tone-forming filters is crucial, yet there is a curious absence of definitive material dealing with filter design __ by  C E Pykett B Sc, Ph D

Tonemender -  The Tonemender is a very flexible, yet simple clean boost with a 3-knob tonestack that allows the user to re-create the classic Fender, Marshall and Vox responses.  We suggest using a TLC2272 for the dual op-amp.  The TLC2272 is rated for low-noise and rail-to-rail output, which will offer the highest possible clean boost and dynamic range.  The NE5532 is another good choice, but a TL072 can also be used with decent results __ Contact: holler @ runoffgroove.Com

Touch-Sensitive Musical Bell with Timer -  This circuit is built around CMOS IC CD4011 and popular melody generator IC UM66. When touch plates are bridged by hand for a moment. the circuit starts to generate music. After __   01/01/07EFY

Toy Organ -  Some useful circuits using the LM555 IC.  Scroll to find the toy organ circuit __ Designed by Jose Pino

TPA3001d1EVM Evaluation Module -  The TPA3001D1 is a 20-W mono Class-D audio power amplifier designed for 12V to 18V applications with a 4to 8-Ohm minimum speaker impedance.  The efficient Class-D operation reduces solution size and cost by eliminating the need for heat sinks

TPA3007d1 Evaluation Module -  The TPA3001D1 is a 20-W mono Class-D audio power amplifier designed for 12V to 18V applications with a 4to 8-Ohm minimum speaker impedance.  The efficient Class-D operation reduces solution size and cost by eliminating the need for heat sinks

Transformer Short Tester -  Transformer Short Tester __ Designed by Guitar Effect RC Keen

Transistor linearly digitizes airflow -  09/19/02 EDN-Design Ideas A sensitive and reliable way to measure airflow is to take advantage of the predictable relationship between heat dissipation and air speed.  The principle of thermal anemometry relies on King's Law, which dictates that the power required to maintain a fixed differential between the surface of a heated sensor and the ambient air temperature increases as the square root of air speed __ Circuit Design by Steve Woodward, University of North Carolina, Chapel Hill, NC

Transistor Organ -  This simple circuit can provide hours of enjoyment as you learn tunes, play duets or just make some really weird sounds by pushing all the buttons at once.  You have probably seen this circuit before, it is fairly common.  I have seen it in several __ Designed by Aaron Cake

Transmission Line Enclosure Speakers -  Built for my Ambisonic surround rig, and an interesting project.  But don't do this unless you're clinically insane; Buy them instead. __ Designed by Henry 

Transposable Chord Generator -  This circuit consists of three precise triangle-wave oscillators, each using an Analog Devices type AD654 voltage controlled oscillator (VCO) and an AD620 instrumentation amplifier (INAMP).  Each oscillator frequency (F1, F2, F3) is adjusted with a ten-turn potentiometer.  The three triangle waves are summed at U1B to produce a triad chord.  Transposition of the triad over a wide range is achieved by dividing each of the input voltages by a common factor, set by the TRANSPOSE potentiometer and buffered by U1A. __ Designed by Arthur Harrison

Treble Booster/Overdrive including a peRF board layout -  A stone cold crazy treble-boosted overdrive. __ Contact: holler @ runoffgroove.Com

Tremolo Effect for Electric Guitar or Other Musical Instruments -  Tremolo circuit is a kind of sound effect.  We can see this type of effect is applied  in guitar effect pedals.  Tremolo effect is produced if we modulate the amplitude of an audio signal.  The shape of modulating signal can vary from square wave, sawtooth, or sine.  When we use a square wave, then the effect produce a knocking-like sound which might be perceived like a percussive instrument.

Tremolo Unit -  A versatile guitar effect.  This is a simple circuit that gives very good results __ Designed by Rod Elliott  ESP

Tremolo Unit for Musicians -  Jazz up your music with this easy to build unit. __ SiliconChip

Triple Spring Reverb -  A spring reverb unit using three high quality Accutronics spring tanks with different decay times and feedback controls. __ Designed by Henry 

Triple Video Line Driver (DC Coupled) -  In DC-coupled systems, the video swings are fixed in relation to the supplies used, so back-terminated cable drivers need only provide 2V of output range when optimally biased.  In most cases, this permits operation on lower power supply potential (s) than with AC-coupling (unclamped mode).  Generally DC-coupled circuits use split __ Linear Technology/Analog Devices App Note, Mar 25th 2010

Tri-Vibe -  A versatile modulation effect that offers true vibrato. __ Contact: holler @ runoffgroove.Com

Tube Car Stereo Amp -  YES, a tube amp in a CAR!!! __ Designed by Bob Danielak

Tube Screamer-based overdrive -  Tube Screamer-based overdrive. __ Contact: holler @ runoffgroove.Com

Tube Sound Fuzz Adaptation  -  Mark Hammer's Tube Sound Fuzz Adaptation __ Designed by Guitar Effect RC Keen

Twin Line Telebalance Unit -  Again, made for Radio Glen.  Quote from then station manager Lex, "Beats the living fish out of those analogue Sonifex units.  " __ Designed by Henry 

Two 9v battery-powered Amps based on the LM386. Schematic & PCB/perfboard layouts. -  For better compatibility with effects driving the Little Gem, a FET buffer can be added.  Both the Little Gem Mk II   (seen below) and Ruby schematics include a simple buffer design.  No further circuit modifications are necessary, however the input capacitor value of the amp may need to be adjusted to taste. __ Contact: holler @ runoffgroove.Com

Two channel distortion -  Two channels of buxom distortion. __ Contact: holler @ runoffgroove.Com

Two Channel Power Amplifier -  The design of our power amplifier is based on a general purpose power amplifier widely used in the electronics world.  The chip   (NTE 1606) we are using is used in many consumer stereo systems.  We did some research and came out with a simple design that uses the NTE 1606 Power Amplifier chip

Two Terminal Current Regulator (LT1635) -  The LT1635 combines an op amp with a 200mV reference.  Scaling this reference voltage to a potential across resistor R3 forces a controlled amount of current to flow from the +terminal to the –terminal.  Power is taken from the loop. __ Linear Technology/Analog Devices App Note, Mar 31, 2010

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Power Amplifiers:  #'s - C        D - K        L - P         Q - S        T - Z


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