Owner: Electronic Parts-Kits And Projects Info URL:http://electronicparts-kits.blogspot.com Join Date: Mon, 14 Apr 2008 10:28:53 -0500 Rating:0 Site Description: Electronic Parts, Kits, and Projects Information - Transmitter, Power Amplifier, Modulator, Components, Transistor, IC, Audio, Video. Products Manual, Telephone Hybrid, Power Meter, Stereo Encoder, Resistor, LCD Display, etc. Site statistics:Click here
PLL FM Transmitter 4 Watt 2008-04-14 03:38:00 Featured in the PLL transmitter design is an "Out Of Lock Power Down" circuit. This will automatically reduce the output power to zero so that frequency adjacent radio stations will NOT be affected. A clean start up every time is assured without any disturbance to other channels. Some inferior transmitter pll kits do not have out of lock power down. These are ILLEGAL to use. Don't take a chance with low grade rubbish.Ultra Linear FM Modulation to produce absolutely crystal clear sound. The modulation now uses the varicap which is the most linear source we guarantee to give distortion free sound. This means that your listeners receive crystal clear sound and an excellent stereo performance. (Download schematic manual page 1 2 3 4 5 6 7 8 9 10 11) Read more:Transmitter
PLL FM Transmitter 1 Watt 2008-04-14 03:25:00 Main device to transmit signal is transmitter and in broadcast FM is called FM transmitter. This FM Transmitter
divided by into three block :1. Audio Processing Block2. RF Generator (VCO+PLL) Block3. Amplifier and Filter Block.For covering 88-108 MHz, the transmitter must be wideband FM Transmitter. For stability Frequency output must be PLL FM Transmitter. For Covering Long Range Transmission must be added High Power FM Transmitter.Below is FM Transmitter Product from BROADCAST WAREHOUSE, Model : ALLONE FM TRANSMITTER 1 WATTHere is The Manual Technical with schematic.
8x Sample Stereo Coder with the BLV8085 Filters 2008-04-14 03:13:00 The original design of this Stereo
Encoder had some errors so the Stereo Coder has been modified by KatRuud-Tronics & PhantomTronics. Modified at multiplexer filter.Here you can download the normal 8x Sample
Stereo Coder with the BLV8085 Filters
.
FM Stereo Encoder 8X Oversampling Katruud 2008-04-12 03:02:00 This application used with fm transmitter for encoding two channel audio in FM band transmission that it known as FM stereo. Kit of stereo encoder produced by Katruud Netherland. Method of audio coding is oversampling 8x.This Stereo
FM ENcoder equipped by 15 KHz Audio Filter with improved PCB.Download Katrud Stereo Encoder
oversamplig 8x manual
UHF FM Receiver 2008-04-05 11:24:00 UHF FM RECEIVER USES VERY LOW NOISE FREQUENCY SYNTHESIZERFeatures include: * Dip switch frequency selection, 5 kHz resolution. * Very low noise synthesizer for repeater service. * Commercial grade tcxo for tight frequency accuracy in wide range of environmental conditions: 2ppm -30 to +60°C. * In stock for same day shipping. The R305 UHF FM Receiver is a tough, commercial-grade, receiver which answers the need for the most demanding applications. It has very good sensitivity and selectivity. It is ideal for voice operation in repeaters and voice links. Used with our data demodulators, it makes a handy link for computer controlled equipment or a reliable telemetry link in place of expensive phone lines.Our new uhf receiver proudly combines the best features of its highly acclaime
UHF FM Exciter 2008-04-05 11:17:00 UHF FM EXCITER USES VERY LOW NOISE FREQUENCY SYNTHESIZERHigh quality nbfm and fsk operation on 420-450 MHz (and 400-470 MHz bands for export and gov’t services).Features Include: * Dip switch frequency selection, 5 kHz resolution. * Exceptional modulation for voice and ctcss. * Very low noise synthesizer for repeater service. * Commercial grade tcxo for tight frequency accuracy in wide range of environmental conditions: 2ppm -30 to +60°C. * In stock for same day shipping. The T304 UHF FM Exciter
is a tough, commercial-grade, low power transmitter which answers the need for the most demanding applications. It can be used as a stand-alone unit or as a driver for our class-C power amplifiers. It is ideal for voice operation in repeaters and voice links.You can rely on our transmitt
RF Power Meter 0-500MHz With PIC16F876 2008-04-05 04:28:00 RF Measurement has been an expensive work so far the cost of measuring instruments are concerned. RF Meter
is based on PIC16F876 microcontroller, AD8307 and 2x20 LCD display. Frequency range measurement is 0-500 MHz and Full documentation is included.This power meter kit has two push buttons to control the functions. Very cost effective and simple to use. 4 Push buttons used in this kit are right angle type and are sufficiently long enough to come out of the box, if you decide to house this meter in a case.Download Project Domumentation, Schematic, Hex Code, and Visit page
Power and SWR Meter 2008-04-05 02:25:00 The Power and SWR Meter
kit, designed by Steve "Melt Solder" Weber KD1JV, is a handy accessory for both station and field use. It is a self contained power meter and SWR indicator for 50 Ohm coaxial transmission lines.With this device, you can measure the output power of your QRP transmitter and the SWR on the transmission line to your antenna. Frequency coverage is all amateur bands from 160 to 6 meters.The circuit uses bright LED's to display the power and SWR in binary coded format. This results in a very compact test instrument.The SWR/Power meter is powered by two internal "AAA" battery cells. The meter automatically powers itself down after a period of inactivity to conserve battery life.Specifications:* 160 to 6 meter operating range* 9.9 Watt and 990 mW power scales* Peak hold mode
Privacy Policy 2008-04-03 13:12:00 Privacy Policy
for electronicparts-kits.blogspot.comIf you require any more information or have any questions about our privacy policy, please feel free to contact us by email at parts-kits@telkom.net.At electronicparts-kits.blogspot.com, the privacy of our visitors is of extreme importance to us. This privacy policy document outlines the types of personal information is received and collected by electronicparts-kits.blogspot.com and how it is used. Log FilesLike many other Web sites, electronicparts-kits.blogspot.com makes use of log files. The information inside the log files includes internet protocol (IP) addresses, type of browser, Internet Service Provider (ISP), date/time stamp, referring/exit pages, and number of clicks to analyze trends, administer the site, track user’s movemen Read more:Privacy
, Privacy Policy
RF Power Amplifier for iPOD Stereo FM transmitters 1W 2008-04-19 04:44:00 The schematic show you a RF amplifier with very high gain. The feeding RF signal enter C9 to transistor Q1 which has a self biased working point. The gain and working point is set with the two resistors R1 and R2. FB1, C5, C6 works as filter for rejecting RF to power line. Q1 has a gain about 15dBm. The output signal can be found a the collector which then enter a second amplifier stage Q2. This stage also has a self biased working point. The gain is set by the resistors R3//R4 and R5//R6.Why do I have 2 parallel resistors like that?It is because I want to be able to change the gain of the amplifier. On the PCB below you will see that I only have 2 pads for the resistors. When I want to resistors I solder the two resistors R5 and R6 on top of each other and the same with R3 and R4.I advice Read more:Amplifier
, Stereo
, Power Amplifier
Stereo Encoder For FM Transmitter 2008-04-19 03:58:00 This application is a digital analogue processed stereo encoder. 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 (!!!) higher than the pilot tone frequency. This makes very easy to reject all spectral residues around the sampling frequency without affecting the main signal characteristics. Using of a microcontroller allows to build this stereo encoder with reduced part count and get excellent results in real operation.This stereo encoder advisedly does not contain any preemphasis circuit. Remember the key fact: a compressor/limiter/clipper device must be always present between the preemphasis circuit and the stereo encoder or modulator. Only this configuration ensures loud sound without Read more:Stereo
, Transmitter
, Encoder
Compressor Limiter and Clipper Audio for FM Transmitter 2008-04-19 03:27:00 Audio signals as music or speech have big dynamic ranges. There are silent and loud sections. These audio signals aren't too good for a transmitter, which requires audio signal with constant level on the input. Limiter is a device, which weakens loud signals and intensifies silent signals. On its output there is signal with constant level. Signal clipping on the limiter output allows to increase the signal level without exceeding maximum frequency deviation limit 75 kHz. It's very suitable since preemphasis is used.If your transmission chain does not include any similar device, you should build this one. You will be surprised by its quality, efficiency and simplicity. This is the Pira CZ Compressor
/Limiter/ Clipper
.Be careful if you want to buy any simple compressor/limiter board available Read more:Transmitter
, Audio
RF Signal Generator 2008-04-19 03:03:00 This signal generator is cheap and fairly basic, but perfectly adequate for realignment of radio receivers. However, the output is not a pure sine wave, so the unit may not be suited for more exacting electronic development work. The unit covers a frequency range of 150KHz to 12MHz over five ranges.It is therefore suited to the alignment of RF and IF sections of AM (MW and LW) sets, as well as the IF sections of FM (VHF) circuits. It may also be used for RF alignment of SW circuits from 25 to 49 metres. Range Frequency Inductor Value A 150KHz - 500KHz 2.2mH B 350KHz - 1MHz 470uH C Read more:Generator
High Gain TV Antenna Boosters 2008-04-21 01:58:00 This is a small, broad band, signal Antenna
boosters which covers the frequencies from 40 to 900 MHz. These frequencies include TV in VHF and UHF and also the radio broadcasting frequencies in the 88 - 108 MHz FM band. It is connected between the antenna and the input of your receiver and boosts the signals by up to 20 dB, thus making it possible to receive even the weakest signals.Technical Specifications Frequency range: 40-860 MHz Signal gain: 15-22 dB Input/output impedance: 75 Ohm Working voltage: 9-18V DC Power Supply: 9V battery Board Dimensions: 41x55mm Board Connections Solder Posts How The Antenna Booster WorksThe circuit is built around a single transist
Audio Frequency Function Generator 20Hz - 20KHz 2008-04-21 01:37:00 This is an AF function generation covering the frequencies between 25-25,000 Hz in three bands. It has sine, square and triangular saw tooth outputs and has sufficient output to drive any amplifier and low distortion to be useful in high precision measurements.Freq. response:... 25-25,000 Hz (three ranges A, B, C)Range A:..25-250 HzRange B:..250-2500HzRange C:..2500-25,000 HzDistortion:..0.5 % (Max.)Output voltage:..10 V pp Sine & Triangular16 V pp Square waveOutput impedance:... 600 ohmHow it WorksThe frequency generator uses an IC the TL082 which is a dual op-amp to produce the basicwaveforms. The first of the two op -amps in the IC is used as an oscillator the frequency ofwhich can be set by means of the potentiometer P2 and its range depends on the value of thecapacitor C3 and is s Read more:Audio
, Frequency
, Generator
Square Wave Oscillator 1Hz - 100KHz 2008-04-21 01:26:00 A square wave generator is one of those pieces of equipment that has many uses in the workshop yet few hobbyists actually have. This simple kit, based on the popular 555 timer IC, generates six preset frequencies from 1Hz to 100khz. It has a wide operating voltage range and even provides visual indication of the output.Easy-to-build kit generates six square waves of 1Hz, 10Hz, 100Hz, 1KHz, 10KHz & 100KHz output frequency using the onboard jumper selectors.Ideal for the DIY test bench or school teaching project.The kit is constructed on a single-sided printed circuit board (PCB). The PCB measures 78 x 50mm and will mount on a small Plastix “Jiffy” box. Protel Autotrax & Schematic were used to design the PCB.Download User manual with schematic. Visit page. Read more:Square
FM Telephone Transmitter 2008-04-21 01:19:00 This miniature transmitter attaches in series to your telephone line, transmits the conversation to an FM receiver. Tune to a clear spot in the FM band of your radio. Completely parasitic; i.e. uses the power from the telephone line and needs no battery. The circuit might be used to share or record conversations, but not intended for illegal use.Specifications: * L: 1-3/4" W: 3/4" H: 1/2" * Powered by phone line. * Uses phone line for antenna. * Transmission frequency is user selectable. * Transmission can be listened to on any FM radio. * Includes alligator clips for easy connection to phone line.Download Manual for complete details, including schematic and theory of operation. Visit page. Read more:Transmitter
Wide Band Synthesised FM Transmitter 2008-04-21 01:07:00 Phase-Locked Loop (PLL) based crystal-locked wide band synthesised FM transmitter delivering a high quality, stable 10mW output. Accepts both MIC audio signal (10mV) and LINE input (1v p-p) for example hi-fi, CD, audio mixer (like kit 1052) or computer sound card.The Radio Frequency (RF) output circuitry includes a three-pole filter for reduction of harmonics and other spurious signals. The spurious output signal level is better than -40dBc (0.0001 times the power of the wanted signal level), which makes the project suitable for driving an external power amplifier.It delivers up to 10milliwatts of RF power to the antenna which can be a simple single wire about 74cm long (or open dipole or ground plane). Output power can be boosted to 250mW when used with our FM Power Amplifier.Ideal proje Read more:Transmitter
FM Transmitter With 9 Volt Battery 2008-04-21 00:43:00 This new FM Transmitter
Kit can transmit over 900 feet in the open depending on aerial used with 9 volt battery. The tank oscillator coil is built into the circuit board, and has been tinkered with to give the best distance and stability for it's size. The battery supply rails have been well tied together with respect to radio frequencies.The tracks are also thicker making the fm transmitter circuit a single ‘solid’ block eliminating RF currents in different parts of the circuit. This also means the battery no longer has RF on it which makes the whole unit a lot more frequency stable. Can be tuned anywhere in FM band.Specifications:* L: 1-3/4" W: 7/8" H: 1/2"* Requires 9 Volt Battery* Transmission frequency is user selectable.* Transmitter can be listened to on any FM radio.Down
AM1C - Entry Level AM Radio Transmitter Kit 2008-04-21 00:39:00 #1 Scouting Project For Years * Tunes entire 550 to 1600 KHz AM band * Operates on 9 to 12 VDC, includes case set * Standard line level input with RCA phono jack * 100 mW output. Range up to 1/4 mile under optimum conditionsThe AM1 is a great first kit, and a fine low power AM broadcaster for the hobbyist on a budget. It's a great way to learn the basics of AM broadcast technology, not to mention basic soldering and component identification (if you're a beginner!) The transmitter can be tuned to broadcast anywhere in the AM band (550 to 1600 kHz). Setting frequency is simple - tune a nearby AM radio to the desired frequency, then adjust the AM1 coil to match the radio. With 100 mW of output power, range can be up to 1/4 mile. The AM1 has been used by Scout camps, churches, schools, and Read more:Transmitter
, Entry
, Radio
AM25 - Professional AM Transmitter Kit 2008-04-21 00:31:00 Synthesized Professional Quality for your AM Station!* Fully synthesized, no frequency drift!* Ideal for schools* Microprocessor controlled* Strappable for higher power output where regulations permit* Includes AC power adapter and case setRun your own AM radio station! The AM25 operates anywhere within the standard AM broadcast band, and is easily set to any clear channel in your area. The design is similar to that of a commercial radio transmitter, so you'll learn how the "big guys" operate. It is widely used by school - standard output is 100 mW, with range up to 1/4 mile, but is jumper setable for higher output where regulations allow. Broadcast frequency is easily set with dip-switches and is stable without drifting. The transmitter accepts line level input from CD players, tape decks Read more:Transmitter
Advanced LCD Satellite Tracking Interface 2008-04-24 05:40:00 Project PCB was designed on a PTH PCB measuring 5 x 10cm. Interface
supports Server Easycom and Yaesu GS-232.The Satellite
Antenna Tracking
Interface is targeted to interface Yaesu rotators to your PC running either a NOVA for Windows or SatPC software.Project uses LTC1298 SOIC 12bit A/D chip and a PIC16F84A. SMD chip (LTC) will be supplied pre-soldered on all kits and assembled. Interface takes its power from Yaesu Controller. A Free DIN8 Plug is supplied with kits/Assembled.A few, fully assembled & tested units are being offered at the moment followed by kits getting ready within a month.Dowload Project Documentation Visit Page
100w LCD PIC16F88 SWR Meter for VHF- UHF 2008-04-24 05:04:00 This SWR Meter
s uses PIC16F88, which built in RC osclillator running at 8 MHz. Micro controller calculates forward and reflected power and in addition to FWD and REF readings on 2x16 LCD, cotrols LCD back light.The very basic purpose to make this project is to encourage radio amateurs to build their own High Quality LCD SWR Meter at low price, instead of buying expensive ready made units.Project is developed on two double-sided PTH boards. The first one CPU board where LCD, Regulator, and Op.amp are located. This board receives pure DC Level from sensor board for calculation and display. The Second board is RF Sensor Bridge where power from your transceiver comes in and goes out to antenna. Its strip line type pickup and uses SMT parts, including BAT85 diodes.Download Project Documentat
5/8 Wave Tunable FM Broadcast Antenna 2008-05-04 12:55:00 This is a truly professional FM Broadcast
antenna, at a hobbyist price that you can afford and is the antenna of choice for the professional personal radio broadcaster! This antenna is a true 5/8 Wave collinear vertical antenna giving you 3.4 dBi gain over the entire FM broadcast band range of 88-110 MHz! What does this mean to you? That extra "Punch" and extended range you've been looking for! Precision match tuning over the band gives you an exact match to your operating frequency, at a VSWR of less than 1.5:1. This precision match, along with the heavy duty matching coil and durable thick wall aluminum construction provides a maximum power rating of 200 watts That's right, we said 200 watts! Input connection is through a standard PL-259 connector that is sealed inside the mast support p Read more:Antenna
Microstepping Driver Kit 2008-05-04 12:32:00 Stepper motors are a dream come true for many hobbyists. They are being used in robots, CNC routers, engraving machines, tilt & pan security cameras, hot wire foam cutters, telescope drive mechanisms and even Halloween animations. This versatile stepper motor driver has been designed to be both powerful and precise enough to work in all of these applications. It uses the Allegro/Sanken SLA7062M IC which combines low-power CMOS logic with high-current, high voltage power FET outputs. It is capable of handling motor winding currents of up to 3 AMPS per phase and it operates from a single supply voltage of 10-40 volts DC.The microstepper drive works with any unipolar (6-wire) motor. Unlike traditional “R/L” unipolar drives that use power wasting series resistors, this circuit uses a P Read more:Driver
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