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1W RF Power Amplifier for iPOD Stereo FM transmitters - This map, armored also
enables automatic MONO / MPX through a low-pass filter, even with a multiplex on its
entry by using an ON / ON, panning, the whole spectrum MPX more RDS is sent to the
synthesizer, on the other hand when it is in a position MONO, the low-pass filter is
activated and share its cutoff frequency at 15 KHz, only modulation G + D is sent to
the synthesizer, as 19 KHz. 19 KHz carrier, the signal multiplex and subcarrier 57 KHz
is thereby eliminated, which provides ease of use for example in a string of issue
relay tuner, if the link between the issuer Departure and receiver re-issue was not of
good quality stereo, you sufficient to switch to mono to improve sound quality, you
can then connect the RDS encoder at the re-issuer. ….(electronic schematic added
11/08) |
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20 Watt Audio Amplifier (Aaron Cake) - Simple stereo amplifier based on TDA1554...
(circuit design added 06/06) |
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20 Watt/Channel Stereo Power Amplifier - Based on the versatile LM1875 from
National Semiconductor (circuit / schematic added 9/02) |
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27MHz toy car Transmitter - (circuit / schematic added 6/05) |
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2x30W (stereo) Amplifier with STK465 - A amplifier of acoustic frequencies can be
manufactured with discernible materials, despite is known so much the difficulties of
finding of materials, what the problem of regulations. These difficulties are overcome
relatively easily if we find amplifier in form completed….(design added 08/08) |
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4 Channel Stereo Audio Selector - The add-on circuit presented here is useful for
stereo systems. This circuit has provision for connecting stereo outputs from four
different sources/channels as inputs and only one of them is selected/connected to the
output at any one time....(circuit added 8/06) |
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5W PLL Stereo Transmitter with LCD - Here's PLL FM transmitter circuit from china.
This circuit uses the familiar 2SC1971 for final power amplifier stage. …(electronic
circuit added 08/08/08) |
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A Simple FM Stereo Transmitter - (schematic / circuit added 6/07) |
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A Soundfield Simulator for Stereo Headphones - An adaptation of the Linkwitz
acoustic simulator (see An Acoustic Simulator for Headphone Amplifiers by Chu Moy
above) as a front-end for headphone amplifiers with very high input impedance, such as
the author's own headphone amp project (see A DC-Coupled, Selectable-Gain Headphone
Amplifier). This circuit features a continuously adjustable Soundfield control.
Designed by Chester Simpson (circuit design added 04/05/06) |
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Add on Stereo Channel Selector - (circuit / schematic design added 6/06) |
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AN-11 LX1720: High-Efficiency Class-D, Stereo Audio Amplifier Controller IC. Summary
- Application Note Microsemi 1501 (added 2/07) |
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AN-147: Low Cost IC Stereo Receiver - National Semiconductor Application Note
(app note added 2/06) |
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AN-543-Stereo FM Transmitter DSP, 26,085 bytes - AN-543-StereoFMTransmitter-Analog
Device Application Notes (app note added 10/06) |
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Audio Line Driver - (electronic design added 6/07) |
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Big Ear Stereo Parabolic Microphone - This device is a stereo amplifier for a high
sensitivity stereo parabolic microphone. It can be used for listening to distant
sounds. Typical parabolic microphones are monophonic, this unit has a stereo audio
path that helps produce more realistic sounding audio. The Big-E can be used with
headphones or as an audio source for a stereo tape recorder... (added 6/06) |
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Converts Consumer Stereo Inputs to Mono Balanced Mic Output - AS078 Jenson
Transformer Application Note (app note 6/07) |
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High quality AM through your FM stereo - (design added 6/07) |
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High-quality Stereo Encoder - This stereo encoder is a halfway between analogue
and digital processing. It combines the best from both domains to provide high-quality
and easy to build device. The sampling frequency used in this stereo encoder is 97
times…(added 08/08/08) |
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Improved FM Stereo Modulator - (electronic circuit added 7/03) |
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Ipod Stereo FM transmitter with 1W output power - This project explain how you can
build and connect a powerful 1W amplifier to your FM transmitters…(electronic design
added 03/08) |
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JT-DB-E Converts Consumer Stereo Inputs to Mono Balanced Mic Output - AS078 Jenson
Transformer Application Note (app note 6/07) |
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JT-MB-D Passive Stereo Matrix for M-S Mic Technique - AS055 Jenson Transformer
Application Note (app note 11/02) |
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LM1876-Overture Audio Power Amplifier Series Dual 20-Watt Audio Power Amplifier with
Mute & Standby Modes - The LM1876 is a stereo audio amplifier capable of
delivering typically 20W per channel of continuous average output power into a 4 or 8
load with less than 0.1% THD+N.….(added 05/08) |
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Low Cost IC Stereo Receiver - National Semiconductor Application Note (app
note added 2/06) |
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LX1720: High Efficiency Class-D Stereo Audio Amplifier Controller IC - MicroNote
1501 from Microsem (app note added 6/06) |
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LX1720: High-Efficiency Class-D, Stereo Audio Amplifier Controller IC. Summary AN-11
- Application Note 11 from Microsem (app note added 6/06) |
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MS Stereo Microphone - (circuit / schematic design added 6/06) |
