All posts in the 'Amplifier projects' Category
This effect was developed due to a couple of wonderful guitar devices: SansAmp GT2 (by Tech21) & Guv’Nor (by Marshall). The Overdrive section were taken from SansAmp and Tone-control (EQ) section were taken from Guv’Nor. The next features were added: hi-impedance (1 MOhms) INput to decrease pickup’s signal degradation and bufferred low-impedance OUTput to satisfy any next circuits (long cables, low-impedance mixer’s INput and so on). Scheme is deprived next flaws of SansAmp: pops on switching on/off of the effect, strong noise in pauses, no “mid” control EQ. [more]
This is a musical sensor interface using the CREATE USB microcontroller: a hybrid network of tangled audio technology, based around turntable decks, guitar strings and optical sound designs.This project wanted to merge several of the most crucial audio technology inventions from the previous century into a hybrid object. The inspiring technologies include the phonograph, optical sound on film, the amplified guitar, and the computer. Each represents a different approach to generating, transmitting and/or encoding vibrations, from the spatial through the electrical and optical to digital bits, and each with its own expressive leverages and characteristic morphologies. This project embodies a continuum of audio technology interaction from the most physical hands-on of the vibrating string, to the abstracted turntable control of pre-recorded data, to non-physical control data in optical and electronic form, and finally to the completely abstracted and malleable digital domain. [more]
This amp is rated at 100W into a 4 Ohms load, as this is typical of a “combo” type amp with two 8 Ohm speakers in parallel. Alternatively, you can run the amp into a “quad” box (4 x 8 Ohm speakers in series parallel and will get about 60 Watts. For the really adventurous, 2 quad boxes and the amp head will provide 100W, but will be much louder than the twin. This is a common combination for guitarists, but it does make it hard for the sound guy to bring everything else up to the same level. [more]
This is a 300W bridged-paralleled power amplifier which use LM3886 x 6.This design uses a PCB to hold 3 paralleled LM3886s (i.e. PA150), and use the DRV134 to bridge 2 of the PA150 PCB boards. The function of DRV134 is to convert the un-balanced input signal to a balanced signal, so that the non-inverted signal is fed to one PA150.[more]
One more thing. Right now, if you have an unusual amplifier or if you wire your amp incorrectly to the power detector project, you could short out your ampโs power outputs. Before building the project, use a continuity tester or ohmmeter to make sure your ampโs black (ground) speaker connections are tied directly together (< 1ฮฉ resistance) inside the amp, and make sure you wire the amp to the power detector correctly.[more]
