Bitx In Japan & Brazil

In the last two months there was a lot of interest developed by Japanese Hams for the Bitx Version 3 Kit, and a few kits were shipped. I would be anxious to have any updates and post them on CQ BITX
Our friend from Brazil Om Celso is a very keen home brewer and has already started his Bitx. I congratulate PY2FDX Celso from Brazil and posting some pictures which he has been kind in sending.

15 Watts With Bitx Vr 3 Linear

Om Farhan had posted some interesting details on increasing the power output in the
Linear of Bitx Version 3. More info can be found out by viewing post on 15 watts linear
in Yahoo Bitx forum.

The present mod is very simple and with a 12 V battery that is effectively 13.5 volts
would give a output of 15 watts. With a 24 V DC supply the output may be higher .
The circuit with mods is being published here for Bitx members.

Kindly make the mods and give your feedback.

Silkscreen Error on Bitx Main Board

There are two errors in the latest Bitx Board that you have got lately.
The first is a 2k2 which should be 220 ohms, that is right side of Q11 with a .1 capacitor in between.
The second is .1UF between pin 1-8 which should be reversed, a 10uf capacitor would be better in place of 1uf.

Increasing Gain of LM 386

The Bitx may be giving a low audio output for some. To increase the output I searched for some articles on Sprat and came across an interesting article.With just a few mods in the existing board the audio Gain of LM386 could be increased by 2 to 3 times.

It would be interesting to try this out. I will be trying it out myself and will put up the results. would request my friends to try it out and email me the results.

The article from Sprat to increase the audio gain of LM386