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 | 18W BTL Audio Power Amplifier Module
This is a class AB audio power amplifier using the Hitachi HA13118 module. It is easy to construct and has a minimum of external components. The module has a high power output from a low voltage supply using the bridge tied load method, and a high gain of 55dB. This will be especially useful in applications where the input signal is a low level, without requiring the use of a separate pre-amplifier, eg. a guitar practice amplifier. Full current, and thermal protection is provided by the IC, making it extremely reliable. Manufacturer: KITSRUS. Manufacturer's Part Number: K105.
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| | 50W Hi-Fi Audio Power Amplifier with Mute & Standby
This kit is based on an the amazing TDA7294 IC amplifier module from ST Electronics. It is intended for use as a high quality class AB amplifier in hi-fi applications. It has verylow noise and distortion, wide bandwidth and goodoutput current capability, enabling it to supply high power into both 4 and 8 loads. It has both short circuit and thermal protection, so is quite robust. With a suitable power supply, such as one based on
Power Amplifier DC Supply, this module can deliver over 50WRMS into 4 or 8 ohms with < 0.1% Total HarmonicDistortion (THD) and < 0.1% IntermodulationDistortion (IMD). It is also suitable as a replacement or upgrade power amp stage for many existing amplifiers of between 30W and 50W output provided that they have a suitable power supply (most do). Manufacturer: KITSRUS. Manufacturer's Part Number: K106.
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| Stock Number | Buy | Product Title | Price | Status | |
H01733-01Y |
 | 50W Hi-Fi Audio Power Amplifier with Mute & Standby | $29.99 | Out of Stock |
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 | Amplifier 2w Electronic Kit
This kit produces a variable-gain audio amplifier with an output of up to 2W. It is designed as a building block to be used with our other audio kits and/or with other components. A battery or regulated DC power source must be supplied. Manufacturer: KITSRUS. Manufacturer's Part Number: K017.
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 | Amplifier 8w Electronic Kit
A proven & popular power amplifier building block for use in any audio project. Power output is dependent on the supply voltage and load resistance. Over 10W is typical for a 16V supply into a 2 ohm speaker. A 12V supply into a 4 ohm speaker will deliver around 4W. A small heatsink provided. Manufacturer: KITSRUS. Manufacturer's Part Number: K47.
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 | Audio to Light Modulator Electronic Kit
This circuit detects sound and varies lighting in proprotion to the intensity of the sound. It uses an optocoupler to isolate the audio source from the AC power line (mains). Because this kit involves working with AC line voltages, it cannot be considered a beginer kit. Manufacturer: KITSRUS. Manufacturer's Part Number: K012.
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 | Peizo Screamer Electronic Kit
This is a owerful 6V to 12V piezo alarm utilizing es a 556, auto-transformer and two piezo alarm elements. The circuit delivers over 110dB at 1 meter. It uses a sweep circuit so there is no need to trim the circuit to match the cavity resonant frequency. We supply a plastic box with two piezo elements (35mm diameter) already mounted in their own resonant cavity. This is part of a commercial alarm unit but it uses our (better!) drive circuit. This is ideal for alarm systems. Manufacturer: KITSRUS. Manufacturer's Part Number: K015.
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| | Power Amplifier DC Supply
This is a DC power supply designed for use with
50W Hi-Fi Audio Power Amplifier with Mute & Standby. It is also suitable for any other amplifier or circuit requiring a dual power supply with positive and negative rail voltage of up to 45 Volts per side. You must provide your own transformer (35V-0-35V max), switch, case and optional fuses. A 25V-0-25V transformer is recommended for use with
50W Hi-Fi Audio Power Amplifier with Mute & Standby. This must be considered an advanced kit since it involves use of AC power mains. Manufacturer: KITSRUS. Manufacturer's Part Number: K186.
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| | Stereo Preamplifier Tone Control Electronic Kit
This is a preamplifier and tone control unitwhich will make a useful addition to anyof our power amplifier kits. It is extremelyeasy to construct due to the use of a special IC,the Philips TDA 1524A. This contains all thecircuitry required to provide up to 20 dB ofvoltage gain, +/-15 dB of bass and treblecontrol, channel balance, and a switchableloudness contour. Manufacturer: KITSRUS. Manufacturer's Part Number: K100.
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| Stock Number | Buy | Product Title | Price | Status | |
H01249-01V |
| Stereo Preamplifier Tone Control Electronic Kit | $29.99 | Out of Stock |
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 | Strobe Light Electronic Kit
This circuit includes a Xenon Flashtube as found on aircraft, camera flash units, signal beacons and disco lights. You can adjust the flash rate between one flash every three seconds and 3 flashes per second. It must be mounted in a suitable case to prevent accident accidntal contact with high voltages. Because this kit involves working with AC line voltages, it cannot be considered a beginer kit. Manufacturer: KITSRUS. Manufacturer's Part Number: K014-110.
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 | Two Station Intercom
Simple two wire intercom. Each unit with its own speaker, microphone and amplifier (LM386.) Can be modified to a hard wired 'bug'. With 4 strand ribbon cable the power can be sent to the remote 'bug' unit from the receiving unit. Manufacturer: KITSRUS. Manufacturer's Part Number: K021.
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