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Category: Audio Circuits / Amplifiers Views: 5386 Rank: 0 This design adopts a well established circuit topology for the power amplifier, using a single-rail supply of about 60V and capacitor-coupling for the speaker(s). The advantages for a guitar amplifier are the very simple circuitry, even for comparatively high power outputs, and a certain built-in degree of loudspeaker protection, due to capacitor C8, preventing the voltage supply to be conveyed into loudspeakers in case of output transistors' failure. The preamp is powered by the same 60V rails as the power amplifier, allowing to implement a two-transistors gain-block capable of delivering about 20V RMS output. This provides a very high input overload capability.The value listed for C8 is the minimum suggested value. A 3300µF capacitor or two 2200µF capacitors wired in parallel would be a better choice. The Darlington transistor types listed could be too oversized for such a design. You can substitute them visit page. The value listed for C8 is the minimum suggested value. A 3300µF capacitor or two 2200µF capacitors wired in parallel would be a better choice. The Darlington transistor types listed could be too oversized for such a design. You can substitute them http://www.free-circuit-diagrams.com/audio/page-1/28/60w-bass-amplifier
Related circuits Although the TDA2030 can deliver 20 watts of output power, I deliberately reduced the output power to about 8 watts to supply 10 watt speakers. Input sensitivity is 200mV. Higher input levels naturally will give greater output, but no distortion should be heard. The gain is set by the 47k and... The GainClone idea seem to have taken off in a fairly big way. There are some good reasons for this, and I found myself in the position where SWMBO (she who must be obeyed) was getting very twitchy as I added amps and speakers to `her` room (which is actually a sitting room with a TV, small... The control circuit operates to double from a positive supply, which, when turned on the power of the first door. and goes off when the first drain as shown in FIG. This circuit integrates the LM123, a three-terminal positive regulator and a dc dc + converter, whose output power drains and gates... In this circuit, a 2-MHz clock is divided by eight in Ul, providing a stable 250-kHz carrier. Ql and Q2 buffer the clock and provide a low-impedance drive for op amp U4, which is a high-gain amplifier and integrator. U4 accepts audio inputs and converts the 250-kHz square wave into a triangular... I used the original board layout shown in the magazine article as well as the original driver transistors. However, due to the unavailability of the original power transistors, I opted for a more robust output stage using Toshiba 2SA1943 and 2SC5200 complimentary transistor pairs. This transistor... 6W-audio-amplifier-with-preamp This monolithic IC, class-B, audio amplifier circuit is a 6-W car radio amplifier 200 watt Audio amplifier with STK4050 This complete high quality, low noise mono audio power amplifier is based around the Hybrid Integrated Circuit STK4050 manufactured by Sanyo. The circuit incorporates volume and has a maximum music output power of 200W.The circuit incorporates an on board power supply; therefore, only centre... Gain increases by decades as the binary input decreases from 1,1 to 0,0. Minimum gain is 1 and maximum gain is 1000. DIY Tube/ Valve Guitar Preamp (Hand Made)by Paul Graham
Two Transistor Pre-amplifier with Bass Tone Control - Breadboard Version DEMO
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