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Sorry, but realy nobody is interested in my PLL project?? It is MC145170 and 16F628 based. It is working 100% in BITX. I post the schematic, photos and the C source code of working beta in the files

Hi, I just discovered that a series of 4 articles about BITX20 has been published on the Italian magazine "RadioKit Elettronica" (03/2005 to

a bit of insulation tape on the core will certainly help matters..... &#92; mm ali vu2ali Quoting Ashhar Farhan <farhan@...>:

the problem with balun is that it has a sharp edges. these edges nick the enamelled wire being passed around. and the wire gets scrapped and touches the core. if more than two wires get nicked, they

Guys I am building a BITX and have the rx working very nice. However, there is a problem of microphics around the detector/af amp. Ceramics replaced, as per past postings. No change. I have now traced

What a great site site ... Thanks for flagging it up Charles G4VSZ Hon Sec of BRATS Gillingham Kent

http://www.ve3sqb.com/

Hi Tim, Yes, built the original design (correct the IC1 pin assigment, pin 5 and 6 is in reverse order), then add everything else to your personal taste. BITX is an excellent rig, I have built mine

Hi all, I have been toying for a while now about building this rig, and just found the Yahoo group. I am sure there have been changes to the BITX-20. Where might I find the version that is most

http://homepage.tinet.ie/~ei9gq/6m.html for men that the bitx build to 6 meters have at this perhaps something arjan pe1abe

Mike As I sit here looking at the Jameco catalog <www.jameco.com> I see IRFxxx devices listed as: DEVICE EACH Q=10 Q=100 Q=1000 ======= ====== ====== ======

Currently on UK's Ebay Auction site.. Item number: 7527490184 ( lot of 10 ) International Rectifier IRF510's Buy it now price is 4.95 GBP hth someone.. Mike --

Congratulations with 200th member and the 1-year birthday Ashar! This a a fantastic forum ! How about a design for the "magic" 6 m band ? Ashhar Farhan <farhan@...> wrote: i noticed that

i noticed that we are a group of more thna 200 now. and last month turned one year old. i am itching to get some free timet to revise the bitx design. there have been quite a few serious fixes of

Thanks for advice Arv, As you can see in the forum, several designs have been realized using IRF's in 6m PA stages (the ones I have seen up till now, only with multiple IRFs). So I guess the problems

Dear Heinz, I really appreciate your summurization of all those good sources! Another proof that IRF (610) can be used on the 'magic' 6 m band. Up till now I have noticed 6m PA-stages with multiple

Sure Chris, SBL have a bi-directional nature. Signetics NE612/602 not. Additional switching required! Or 2 times NE6..? Thanks for advice, Ron

Tnx for your input Rahul, Yes impressive. OK this proves IRF family MOSFET can be used on 6m. (in spite of relative high input capacity of several pF) This is non-QRP for sure! Interesting URLs you

I make my first QSO today with 3W, a dipole in the band allocated to apprentice hams in spain, my call sign EC7ALV in HF bands. I worked hard with my Autooscilating Power Amplifier. The QSO was

Hi! I had been interested in 6mtr and related equipment. Once again as evident by BITX concept we had no 6mtr stuff available in VU. I was much impressed with this 50mhz mega amp using IRF510.