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40m Projekten - Zenders

Klik voor vergroting"Altoobs" 2-Tube 40 Meter CW Transmitter by N5ESE
My homebrew projects tend to progress in stages, spread over time. This one was certainly an example of that process. Being enamored of projects built into the ubiquitous Altoids tin, ...
http://www.n5ese.com/altoobs.htm

Klik voor vergroting250mW TX by SMVPO
Here is a simple little HF TX. It may be modified for all the HF bands, but the details given are only for the 7MHz band. The basic transmitter uses two transistors BC547 and will deliver over 250mW of power.
http://sm0vpo.altervista.org/tx/250mwtx.htm

Klik voor vergroting40 meter 100 watt Transmitter by K9GDT
The 40m receiver was complete and it wasnt long before the old girl was beginning to look forlorn. It was obvious she needed a mate. Hmmm....perhaps something tall, dark, and handsome? Nope. ...
http://www.qsl.net/k9gdt/radio/40mtx/40mtx.htm

Klik voor vergroting40 Meter QRP Transmitter by AA5TB
Below is a photo of a simple 40 meter CW transmitter that I built. It sports full break-in operation and 250 mW of output power. The final output transistor is a mighty 2N2219A.
http://www.aa5tb.com/40mtx.html

Klik voor vergroting6L6 Transmitter by K4GC
Here is my newest transmitter. It uses a 6L6 with a 6X5 rectifier and a 0D3 voltage regulator tube on the creen. The power output is only about 5 watts. It can go almost twice that by pulling out the 0D3, but ...
http://www.qsl.net/k4gc/6L6.html

Klik voor vergroting7 on 7 Qrp by VU2VWN
This is a VFO control, easy to build 7 watts QRP on 7 Mhz from Vasantha VU2VWN. If you are in close VU, you may hear hundreds of hams using this QRP on 7MHz - AM.
http://www.qsl.net/qrp/tx/vu2vwn.htm

Klik voor vergroting7MHz 3Transistor 4W CW transmitter by JF1OZL
I will show you my first full handmade transmitter. This is three stage CW transmitter for 7MHz. I ordered the crystal for the crystal's maker. The signal made by the oscillator is amplified by the two stage C class amplifier.
http://www.intio.or.jp/jf10zl/7m3tr.htm

Klik voor vergroting7T9521 Komukai40,yet another 7MHz QRP Transmitter by JH5ESM
In 2005, I had built a transmitter featuring pre-mix VFO unit using ceramic resonator VXO. Since the VFO stability was not enough for field operation and collector efficiency at the final stage was so poor, I decided to build another configuration.
http://www.qsl.net/jh5esm/homebrew/7t9521.html

Klik voor vergrotingA 2 Transistor Transmitter Powered From A 9V Battery by AA7EE
A couple of days ago I built a simple 2 transistor transmitter on a small piece of PCB material. I used the style of construction that seems to be becoming my default Manhattan-style using MeSQUARES from QRPMe.
https://aa7ee.wordpress.com/2011/08/09/a-2-transistor-transmitter-powered-from-a-9v-battery/

Klik voor vergrotingAM DSB Transmitter for Hams by VU3PRX
The circuit of AM transmitter is designed to transmit (amplitude modulated) DSB (double side band) signals. A modulated AM signal consists of a carrier and two symetrically spaced side bands.
http://www.flashwebhost.com/circuit/dsb_transmitter_for_hams.php

Klik voor vergrotingBuild a 5 Watt 40 Meter Transmitter by N1HFX
There is nothing more satisfying about this hobby than building your own transmitter. The circuit in figure 1 is a crystal controlled CW transmitter with at least 5 watts of power.
http://www.rason.org/Projects/transmit/transmit.htm

Build A Tuna-Tin 2 by W1CER
Ham radio lost its kick? Go QRP with this weekendproject transmitter! WAS with a 40-meter half-watter?
You betcha!
http://www.arrl.org/files/file/Technology/tis/info/pdf/7605014.pdf

The Tuna-Tin 2 Today by W1CER
Ham radio lost its kick? Go QRP with this weekendproject transmitter! WAS with a 40-meter half-watter?
You betcha!
http://www.arrl.org/files/file/Technology/tis/info/pdf/0003037.pdf

Klik voor vergrotingFun with the Tuna Tin II by VE7SL
In May 1976, QST printed an article that would become legendary! "THE TUNA TIN II" by Doug Demaw (W1CER) was an instant hit. Over the next few months and years, hundreds of Tuna Tin II's were built and put into operation and many hams were introduced to the challenge of QRP for the first time.
http://qsl.net/ve7sl/tuna.html

Klik voor vergrotingTT2/J by JH5ESM
The Tuna Tin 2 tiny transmitter, designed by Doug DeMaw, W1FB, was first appeared in May 1976 issue of QST magazine. This is a Japanese modification. Instead of 2N2222A, Toshiba 2SC1959 and 2SC2120, are employed.
http://www.qsl.net/jh5esm/homebrew/tt2j.html

Klik voor vergrotingCANARINHO - 40m Xtal CW Transceiver by PY2OHH
In the CANARINHO simple version we have only the TX, keyed directly by the CW key. Building it this way we have a current of about 180mA in the key, but it is no good because it burns the key contacts in little use time.
http://py2ohh.w2c.com.br/trx/canarinho/canarinho.htm

Klik voor vergrotingCURRUIRA - The smallest 40m CW Transmitter by PY2OHH
After the CANARINHO success we decided to build a transmitter with the lowest number of discrete parts. So we arrived to the CURRUIRA.
There are only 7 parts! It is a crystal Colpitts oscillator with almost all deleted!
http://py2ohh.w2c.com.br/trx/curruira/curruira.htm

Klik voor vergrotingCurrupaco - A simple 40m QRP DSB Transmitter by PY2OHH
Because the high interest raised by the DSB projects, we decided to publish a circuit we have mounted and worked very well, in spite of it has no box yet and havent been practically tested, as everything we publish here was duly tested in the home-brewing shop and in QSOs.
http://py2ohh.w2c.com.br/trx/currupaco/currupaco.htm

Klik voor vergrotingJORF - A simple 40m CW Transmitter by PY2OHH
The JORF is a simple transmitter with 4 stages, it works with a ceramic resonator VXO, common transistors (2N3904 or BC547 or BC548 and the BD139) and commercial inductors.
http://py2ohh.w2c.com.br/trx/jorf/jorf.htm

Klik voor vergrotingPO-DURO Transmissor CW Classe "E" por PY2OHH
Pequeno, economico, eficiente, valente ...so muitos adjetivos...
Vamos desenhar um transmissor de CW !
http://py2ohh.w2c.com.br/trx/paoduro/pao-duro.html

Klik voor vergrotingPippin QRP TX by G3MY
Basically, it is a conventional Colpitt type crystal oscillator but with the output taken from a low value collector load resistor and direct coupling is made into the base of the PNP device used as an amplifier.
http://www.qsl.net/g3pto/pippin.html

Klik voor vergrotingPowerless transmitter by JF1OZL
This is AM transmitter, using no power supply. It moves only by the voice power. Audio power is translated for electric power and it excite radio frequency oscillator.
http://www.intio.or.jp/jf10zl/PLTX.htm

Klik voor vergroting por PY2OHHhttp://py2ohh.w2c.com.br/trx/sovina/sovina.html

Klik voor vergrotingSOVINA2 Transmissor 40m CW Classe "E" por PY2OHH
Aqui mais um transmissor de CW, simplificamos o SOVINA ... retirei o 7805 e o 74HC02 ...substitui por um 2N7000 que funciona como oscilador a cristal e driver.
http://py2ohh.w2c.com.br/trx/sovina2/sovina2.html

Klik voor vergrotingThe "Secret Dream" Transmitter by WD8DAS
My secret dream has been that one day I would be able to build complete projects without the hassle and delay of buying parts. To combat this frustration, over the years I've tended to collect inexpensive parts ...
http://www.qsl.net/wd8das/dream.html

Klik voor vergrotingThe Grenade Project
The "grenade" is a 10 watt AM transmitter for the 40 meter band. It was designed, built and sold by "Radio Animal" of WKND. To protect his design he removed the ID numbers from all the transistors ...
http://worldwidedirt.tripod.com/gproject.html

Klik voor vergrotingTobacco Tin Transmitter by MDAD
I would like to show you my novelty transmitter project which I have enclosed into a tobacco tin. It requires very few parts, they are very easy to obtain, most of them came from my junk box with the exception of the crystal (7.030 MHz) which is an international QRP calling frequency.
http://www.delboyonline.co.uk/m0dad/construcion/tobacco_tin_transmitter.htm


Creatie datum : 12/08/2007 @ 16:02
Laatste wijziging : 03/09/2018 @ 23:38
Categorie : 40m Projekten
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