Taurus Delux 20mt SSB/CW receiver video

The Taurus 20mt receiver is working great and I  have monitored the band with many receivers
which are being calibrated with minimum adjustments.

We would like to know if you would like a kit for Taurus? We can also make it for other bands like
40mt or dual 20mt and 40mt. It all depends on what feedback we get.

The Taurus 20mt receiver is available from our ebay store and will also be available from our website.

Our ebay store link for the Taurus 20mt receiver is as below
http://www.ebay.com/itm/Taurus-Delux-20mt-SSB-CW-Receiver-/132224485750?hash=item1ec9318976

I did monitor and record some video too. here is one on our you tube channel.More video soon.

Kindly send us your suggestions if you want the receiver with case and counter, or bare bone RX only?

Taurus 20mt Receiver SSB/CW

Some new kits have been developed by us and are ready to be provided to our customers.

There seems to be a considerable demand for working kits, so we have developed TAURUS DLX
20mt SSB/CW receiver.

The Taurus 20mt receiver works with a single chip MC3362 this RX had been very popular a few years back, we have modified some stages and bought in a kit form working type and the kit type which shall be
available soon, the working Taurus for 20mt will be available from our ebay store and our website.

The Taurus 20mt covers the complete band from 14.000 to 14.350 and the RX performs optimum.
It has also an inbuilt AGC which can be tweaked accordingly. The audio amplifier consist of TDA 7231

Presently the Taurus comes without a case but soon we shall be adding a case to it.

TAURUS DLX 20MT SSB/CW RECEIVER 

                                     

                                                         TAURUS RX BEING TESTED

TAURUS DELUX 20MT KIT 

Mounting BITX 40 SMD On Bitx3b Case

We are selling our BITX metal case in various colors, these can be used for our

bitx models like bitx3b 3c etc, these are also good for bitx 40 smd.

Explained below is the method of how you can mount the bitx 40 smd

using our bitx3b case as below.

STEP-1 

Place the bitx 40 pcb in center of the 4 holes which are actually meant for the

bitx3b boards.

Now take a marker pen with a thin and long tip, and make circles inside

the pcb mounting holes and then make new 4 holes on all the 4 mounting holes with 

a suitable drill. If you can not make holes yourself then ask a friend or seek professional help.

                                           Mounting holes for BITX 40 board 

    

                                Mounting holes for BITX 40 board 

                                  Screws secure on the brass spacers

STEP-2 

In the second  step we mount the bitx40 board on the brass stands and secure them with the nuts on 

all four brass stands.

                                                   

   Bitx 40 board mounted on the bottom cover case

                                         

    Bitx 40 board mounted on the bottom cover case

So in easy  two steps we have mounted the Bitx 40 board on the metal case for our 

bitx case.

If you do not wish to make holes on the case then there is a second option of cutting a piece

of copper board and mounting that on the bitx3b case on the pre drilled holes and after that making

4 holes for the bitx board on the copper sheet and mounting the bitx 40 board on the copper sheet with brass stand stands.

The advantage of using our case is that you get sufficient place for adding any other add on circuits

like audio mute control, agc and an extra linear amplifier.

Further we are coming out with some new models that should solve the drilling holes on the

case for bitx 40 smd.

Kindly note we are not in any way selling or servicing bitx40 smd kits. 

New Colors Bitx Case

Two new colors for Bitx Case have been bought into our inventory and are available for sale
from our ebay store and our website 

The two new colors are Black Glossy And DA Grey Glossy.

Hope you would like these two new colors, the case can be used for Bitx 3b3c and for Bitx40 smd.

BITX CASE GLOSSY BLACK

                                 

BITX CASE DA GREY 

          

Bitx from Russia

In our previous post about Bitx from Russia, we had mentioned Nikita building the Bitx 20 3C.

Nikita had promised to send the pictures of his completed Bitx once it was built.

So here are some word from Nikita himself on his Bitx.

" Hello my dear friend! I finished the project bitx 3c sbl-1 20 mt. As promised, I send you some photos of the finished design of the transceiver. Most likely I have mistakes, but it works, and it pleases! Now I wait for some details for multiband bitx, so I'm experimenting with a synthesizer. How I will achieve success I will give details."


Thanks Nikita you have done a great job and and completed your Bitx with lovely pictures of your

Bitx. Hope new hams will find your construction technique very useful and admirable.


                                      PICTURES OF BITX3C SBL-1 20MT SSB TCVR   BUILT BY NIKITA 

BITX3C SBL-1 20MT SSB TCVR 

VIEW OF BITX3C 

BITX 3C FRONT 

BITX3C VU METER AND FLL 

COMPLETED BITX3C 20MT BY NIKITA 

Amateur Radio Kits.In Now Working

After a gap of one year our website is back with a complete working store and a download
page for all our kits and parts.

It took me some time as I thought of building the website myself as my second hobby is of making websites and blogging.

The website will be made more customer friendly in coming days.

This website was necessary as it provides us  with more flexibility in providing info, as well
as to maintain a better shopping cart as on eBay we have certain limitations.

The site is SSL secured and you need to add an https. before the domain name.

Kindly find the link below to our website.

https://amateurradiokits.in

Vintage SSB/CW Bitx 20 From U.K

Let me present here my friends a Bitx SSB/CW 20  Vintage type of ssb transceiver built by our young friend

Mark Baldridge from U.K 

I shall put in Marks own word his experience with building the Bitx through an email sent to me.

"Sunil,

Attached are several pictures of my finished bitx.

Some key features are the laser cut/engraved faceplate, and the scratchbuilt CW Generator.

My "enclosure" was designed to make easy access for modification and troubleshooting. As well as to look like a vintage 1920s era homebuilt radio.

I have the entire rig running off a 6 cell lithium battery at 22V. 

Thank you so much for your help and great customer support through the build process. 

I have made contacts across the United States, and one CW contact into Canada.

Feel free to share the photos. Have a great evening!

~ Mark " 

wishing Mark the very best with his Bitx, hope we more of Bitx in different styles coming up.

Thanks mark for your great effort in putting up the Vintage Bitx.....

------------------------------------------------------------------------------------------------------------------

Bitx3C SBL-1 20mt from Russian Federation

After a long gap of time I am posting some pictures of Bitx3C SBL-1 20mt built by our

friend from Russian Federation.

Our friends name is Nikita

OM Nikita  has reported great success with his building the Bitx3c using sbl-1 mixers.

Below are some comments by Nikita  himself by an email to me.

:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::


" Hello, my dear friend.

Yesterday I successfully completed bitx 3c sbl-1. And I hope, that I do it. It was very

easy to setup it.  Exactly one year ago, I tried to solder version in the diode mixers,

but I did not succeed. and after one year I enjoy assembled and tuned transceiver (3c

ver). Now I have setup bpf are very easy.

So, now I must put my tcvr to the case. But I want try make this tcvr multiband, until I

No matter what, thank you for a wonderful set, that allows you to get an unforgettable

pleasure. "

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::


Wishing Nikita the very best for his future projects....

Bitx3C SBL-1 Exciter 20mt 

Bitx3C SBL-1  PA 20mt

New batch of 20mt and 40mt Kits

I just wanted to inform my friends that a new batch of Bitx3b 3c kit kitting is underway,

and by this week end our Ebay store will be back with the Bitx sales.

This info has been put up as many friends are inquiring about the availability of our Bitx kits.

Thanks and best of 73s

Sunil 

CW Tone Generator For Bitx And Other SSB Transcievers

If you have been wondering how to get your Bitx to work CW then we have just launched a CW
Generator Kit. This Kit can be used externally housed in a plastic or metal case.

Please take following notes on working of the CW Generator.

               CW: 700Herz  TONE GENERATOR

This kit can be used as a Morse Code Practice Oscillator and as well as as CW generator for SSB transceivers like Bitx.

           CW can be used in two ways.

1.     By feeding the 700 hertz tone, to the mike input stage of TX.

2.     By unbalancing the carrier by a positive voltage from this Generator, which unbalances the balanced modulator.

Using As a Morse Morse_Code Practice oscillator.

The generator has a side tone oscillator, from which the keying can be monitored. An 8 ohms speaker can be connected to monitor sending of CW.

Controls: The following controls are available on board.

Audio Control:  Control the audios gain of the side tone oscillator

Tone Control:  Control the audio tone gains for the microphone TX input stage.

Carrier Balance: Provides a positive voltage to unbalance the modulator stage in TX for CW

Delay: Adjust delay for keying CW as per speed required.

The generator can be powered by 12 volts from the TCVR connected to with the 5 pins PC connector or by a 9 Volt battery. An On/Off switch facility is also provided on the board.

The CW generator board can also be fitted in the transceiver or transmitter case, the 10K trimmers should be used for this, the 5 PIN PC connector and the RCA connector can be discarded and wires soldered direct on the pads.

For using CW there are two methods, which can be used.

1.     By feeding the Audio tone 700 Hertz from Tone Control Output point,

to the SSB transceiver.

 

2.     By providing positive voltage from point Carrier Balance, the voltage is fed

          to the TX Balanced Modulator stage  to unbalance the carrier .

Power Source:

The unit can be powered by 9 Volt external battery or with 12 Volts from the transceiver being used. The voltage from the tcvr comes through one of the pins of the 5 pin PC Connector on board.

A OFF/ON switch can be used when using the 9 volts battery or a jumper can be placed across the switch pads to power it direct.

Connecting to Bitx.

The unit can be connected to Bitx with the 5 PIN connector of the cw gen and the 4 PIN XLR connector of Bitx with a shielded cable provided.

__________________________________________________________________________________

SCHEMATIC CW GEN

BOARD

BOARD

BUILT UP CW GEN

CW GENERATOR KIT

      CW GENERATOR KITS BOM

 

COMPONENT	VALUE	QUANTITY
RESISTORS 1/4 WATT	10E	2
RESISTORS 1/4 WATT	18K	2
RESISTORS 1/4 WATT	10K	2
RESISTORS 1/4 WATT	2K2	5
RESISTORS 1/4 WATT	3K3	2
RESISTORS 1/4 WATT	4K7	1
LINEAR POTENTIOMETER	10K	4
DIODE	IN4007	3
CAPACITOR  DISC	0.01UF	9
ELECRTOLYTIC CAP	47UF	1
ELECRTOLYTIC CAP	100UF  25V	2
ELECRTOLYTIC CAP	3.3UF 63V	1
ELECRTOLYTIC CAP	1uf  63v	1
I.C.BASE	8 PIN	1
I.C.LM386	LM386	1
TRANSISTOR	BC557	2
TRANSISTOR	2N3904	3
CONNECTORS WIRE	2 PIN	2
JUMPERS	JUMPER 0 OHMS	4
5-Pin DIN Female Keyboard socket	5 PIN	1
5-Pin DIN Male Keyboard socket	5 PIN	1
CONNECTOR  RCA	RCA FOR KEY	1
PRINTED CIRCUIT BOARD	CW GENERATOR	1
SHIELDED WIRE	3 CORE  1.7 INCH	1
Battery Clip Wire		1
Speaker	8 ohms	1
Trimmer Presets	10k	1
Linear	10k	4

We are selling the CW Gen Kit on our ebay store, but there is some issue with ebay as we are not being able to 

relist the kit, due to some technical issue.

The kit can be purchased from our Paypal Link below. After we have received your payment we shall ship the kit immediately and inform the tracking number.

Click here to buy the CW Gen Kit 

https://amateurradiokits.in/product/cw-generator-kit-2/