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Substitutions
Dear All, I'm sorry I have confused the BITx20 with an earlier transceivers of Farhans which does use 2N3866. I'll have to lay low for a while. Dave M1DGS
By d.snell@... · #13 ·
Substitutions
Dear All I looked at Farhans site and found http://www.phonestack.com/farhan/xcvr1.html In that he says:- Substitutions The BF195 transistors can be substituted with any other HF transistor
By d.snell@... · #11 ·
Re: Substitutions or Sourcing components
I'm confused about the 2N3866 - what's it for? I see no mention on the circuit diagram; the nice thing is that a variety of transistors will do in this design. Rapid Electronics
By Hans Summers <Hans.Summers@...> · #10 ·
Substitutions or Sourcing components
What are members doing about component sources? Keytronics has 10MHz xtals at ?1.00 each (ten required) and the 2N3866 seems to be obsolete. Do others see any difficulties in sourcing
By m1dgs <d.snell@...> · #9 ·
Re: Hi gang!
Much as I would like to be able to take credit Duncan, unfortunately it wasn't my idea: I first heard it from Andrew VK3BFA on the rec.radio.amateur.homebrew newsgroup, and think even he was
By Hans Summers <Hans.Summers@...> · #8 ·
Re: BITX20 Transceiver (fwd)
guys, pete joins us on the group. he has details about substituting the tv baluns cores with FT-37 cores. he has also pointed out that the receiver gain is low. anybody else too who has experienced
By Ashhar Farhan <farhan@...> · #7 ·
Hi gang!
Hello fellow constructors! What a good idea Hans to set up this group! Just to say I am logging in and I am keen and excited to start building this brilliant bit of kit! All the best. Duncan G4DFV
By g4dfv2004 <duncan.walters@...> · #6 ·
My BITX20 rig
Hi all My BITX20 is at an advanced stage of construction, but due to family commitments I won't have very much time to finish it off over the next few weeks. I used a modular construction style,
By Hans Summers <Hans.Summers@...> · #5 ·
Hello all
Just a quick introduction - I'm David G3RYP and am currently building the BITX20. My usual breadboard construction method : a sheet of wood onto which scraps of pcb are held by drawing pins -
By g3ryp <david.g3ryp@...> · #4 ·
Hello fellow builders
Hi people, havent been this excited about homebrew since I was a kid and built my first (totally illegal) valve CW TX - thank you Ashar, do you realise what you have started? Have done the VFO and
By vk3bfa <ablight@...> · #3 ·
the new site
the previous site http://farhan.net.co.nr has had too much traffic. now i have setup a new site with unlimited bandwidth at http://www.phonestack.com/farhan. the new writeup has an updated circuit
By Ashhar Farhan <farhan@...> · #2 ·
XTALS SELECTION
Dear forum, How do you select these xtals, I mean 2, 7, 8, 9 sort by "one leg to ground" or 1, 11, 2, 9 srt by "one leg to ground but via cap 33 pF" ? Thanks. Yours, Milarepa
By MILAREPA <MILAREPA@...> · #509 ·