BITX40 QRP SSB transceiver: Description and demonstration

[VR2ZXP]

You did a very good job man!! Appreciated!!!

[m0dad]

Another impressive homebrew rig Peter. Enjoyed the video. How does it compare to the TCF design.73 Mate

MODAD

[vk3ye]

@m0dad Both are good but overall I prefer the BitX due to its better receiver.

[w0dpd]

Great radio, great video and from the looks of it a great place to QRP!

[goathiker]

Brilliant Mate! 73, Peanut & Rooster

[G4AKC]

Sounds as good as it looks Peter, really good job mate! Well done again .... speak again soon!

[scottjacko87]

Nice video Peter. I happened to be listening in on this QSO from my end but unfortunately the camera was flat :(

[souravrelja]

Hi Peter, Congrats !! U r really an inspiration for me...I guess u didn't use any canned coils for the b/pass filter. How many turns did u wind in for the Vfo coil & which former. Pls send us the modified schematic. Would cherish to assemble the Bitx40 someday...!!

[vk3ye]

@souravrelja The VFO coil is 10uH. I initially used an RF choke but it drifted badly. 10uH but on a T50-2 toroid made a huge improvement. Other changes include mic amplifier - 150k between base and collector instead of the voltage divider biasing and 0.1uF in series with the electret mic. Electret mic is fed 12v via a 22k resistor.

[vk3crg]

Beautifully built radio Peter. Well done & great results! I move into my new house from the 16th of Jan 2012...not long after that I'll be on air with a proper home antenna. I hope to chat to you on air again soon. Happy new year too! 73, Craig VK3CRG

[vk3ye]

@vk3crg Thanks Craig - counting down the days - hope you're enjoying all the packing! You should do well from there even with the buddypole (hint: pack transceiver, cables and power supply last so they're the first box you open when you move in). Happy new year as well.

[wincim17]

Nice Job Peter ! A true builder and its good to see hams still doing this. I also build a Bitx20 and enjoy it thoroughly... Dean, K4DSB

[radamail]

Great job on another video, Peter! You're one of the reasons for my interest in building some transceivers of my own - I purchased a BITX multiband kit over the holidays for my first radio project & I'm anxious to get started! 73, AE7KN

[ve7hlo]

Peter I love your videos. They inspire me to want to pick up my soldering iron and solder and build something!  I like how you keep it so simple. Keep up the good work.

73