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sound capture – Circuit Schematic
sound capture
After some new experiments on sound analysis, I used a different design for the microphone amplifying section, that I am happy to share with you (From the stati...
vu meter em84 – Circuit Schematic
vu meter em84
From all the existing tubes, for sure the most interesting ones are the indicator tubes. From the 1930 ²s when they were invented, they captivated the eyes wit...
Eliminating Ground Loops – Circuit Schematic
Eliminating Ground Loops
One of the most insidious problems in an audio system is one or more ground loops. They not only cause hum pickup, they can inject interference from electric dr...
Amp Tone – Circuit Schematic
Amp Tone
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Amp Tone A – Circuit Schematic
Amp Tone A
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synth tr909 – Circuit Schematic
synth tr909
This PCB was inspired by Colin Fraser, who found some very useful extensions to the bass drum circuit of the Roland TR909. Trevor page`s 9090 - project was of c...
surround – Circuit Schematic
surround
The circuits and wiring diagrams below have been tested on several hi-fi stereo systems with no damage to the systems. However, I cannot be responsible for some...
vox ac30 preamp – Circuit Schematic
vox ac30 preamp
The bright channel of the Vox AC30 Top Boost preamp begins with a traditional 12AX7 preamp connected to a volume control with a bright bypass capacitor. This is...
bassman tonestack low frequency – Circuit Schematic
bassman tonestack low frequency
Bass and midrange frequencies are greatly affected by Marshall`s substantial adjustment of R1 and somewhat influenced by the 10-percent increase in C2 and C3. I...
vumeter – Circuit Schematic
vumeter
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preamp onboard – Circuit Schematic
preamp onboard
After the unexpectedly big success of my JFET bass preamp I decided to build an onboard version. For a Jazz Bass-like instrument, I had to get along with three ...
tone generator circuit – Circuit Schematic
tone generator circuit
The Tone generator was a simple project built as a test unit for a customer design job. We use two analog switches controlled by the microprocessor code - one s...
vu meter schematic – Circuit Schematic
vu meter schematic
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tube audio amplifier circuit – Circuit Schematic
tube audio amplifier circuit
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tone controller circuit diagram two transistor – Circuit Schematic
tone controller circuit diagram two transistor
Electrical schematics diagram shown below is a simple two transistor tone controller audio circuit free pictures for download. This electric circuit is based on...
tda1591 stereo decoder schematic – Circuit Schematic
tda1591 stereo decoder schematic
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stereo headphone circuit diagram – Circuit Schematic
stereo headphone circuit diagram
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stereo audio vu meter circuit – Circuit Schematic
stereo audio vu meter circuit
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stereo audio preamp schematic – Circuit Schematic
stereo audio preamp schematic
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simple mixer circuit – Circuit Schematic
simple mixer circuit
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