Monday, November 7, 2011

BITX20 - 5. The VFO build...

Yes indeed the VFO part is done. Especially the small coil with 50 wdg was a blast to make...
Even though i have done a lot of building and fixing stuff, i never wound a coil before. Well there is a first time for everything.

Ok and this is how the VFO part looks when its done.


Next thing is to do some testing again, but i will wait with that till i have some more time to spare... hopefully upcoming weekend. And when i start to test all i just hope everything will be ok so i can proceed to the next part.

Untill the next post !

Sunday, November 6, 2011

BITX20 - 4. Meassuring for the first time....

Ok, First of all, sorry for not being able to post anything any sooner....
My private life has let me to believe that spare time for hobbies is a non existing thing.

although 1 weekend, i must admit, I went  on a field day.. it was the last nice weekend, and i went "field-daying" saturday and sunday... i even got sunburned.... But ill write about that later...

Back to business, the BITX20....
I already build the RF amplifier section but i still needed to perform the basic tests for all sections...
First i have to say that the English manual is not bad at all.... but when it came to measuring things, it became a bit lean.... It started to talk about applying voltages etc etc and i had no idea what was meant or what i should do... As later on in the manual you need to do way more complicated tests i decided to keep on fiddeling until i understood what the #$@% they were talking about...
You can imagine that when after 2 hours of reading over and over, looking at schematics, mood  ruined, i was really happy to figure out how to do what they meant. Probably  the manual is not bad, but as the explanation could have been a bit  better for the fist meassurment.

Anyway, i started to perform the first tests....
Multimeter 1.... battery empty.... @#$#$
Multimeter 2.... battery nearly dead which caused wrong readings....
Both replaced, so i am good from now on with betteries... :)
Test lead.... a new one.... busted..... that explaned the 0.00mA ....@#$@#$

Anyway , after fixing all, i finally got all the meassurments correct.... and guess what.... they were good!!! :)
So... on to the next section.... VFO section here i come !!

73's