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US AWARD / FIRST PRIZE FOR VU2ITI PROF TK MANI
Dear friends, It is a pleasure to inform you all that VU2ITI Prof TK.Mani had won (first price) PICtail Design Contest sponsored by MICROCHIP Inc, recently. The contest was to design and
By bal sun <balsunvutwouyc@...> · #246 ·
Re: Ferrite cores
Hi All And thank you for the reply ... I am all up for experimentation and the BRATS club in UK now has 5 set under construction some much slower than others as they have to buy the parts from pocket
By Charles Darley · #245 ·
MODs List...
A file has been added to <BITX/FILES/MODIFICATIONS/List...> representing a quick collection of most of the ideas for BITX modifications that have appeared thus far on the forum. I hope this will
By Arvid Evans <arvevans@...> · #244 ·
Bi-Directional amp PCB uploaded to Yahoo
Ok, so I've uploaded the file to... http://groups.yahoo.com/group/BITX20/files/G8NXD/ I've renamed it to "one_bidir_pcb.zip" There are going to be other modules and hopefully a complete BITX PCB,
By Mike W <mike@...> · #243 ·
Re: Constructing BITX20
John I too had questions about the RF capability of 'tap washers", so I purchased and tested several varieties that seem readily available here in the US. I found that the semi-clear nylon ones did
By Arvid Evans <arvevans@...> · #241 ·
Re: Ferrite cores (and a bit of a rant)
You should take a look at Amidon's (or other vendor's) specifications for cores. For a given composition, induction can be estimated from the specs and then confirmed from the actual wound inductor.
By Jim Strohm <jstrohm@...> · #242 ·
Ferrite cores
Hi all I have been reading through the threads and have found that there are several Ferrite cores suggested fortunately I have them all ... FT 37 - 43 T 50 - 6 T 50 - 2 BUT can anyone sugest and
By Charles Darley · #240 ·
Re: Bi-Directional amp PCB layout
Mike Thanks for the great idea. Sub-circuit PCB layouts using Farhan's bi-directional amplifiers should find application in many other designs as well as the BITX series of transceivers. This
By Arvid Evans <arvevans@...> · #239 ·
PCB files.
Hi Mike. Thanks for reply .Well i think it will be simple to post the files in the group's file section, if you didn't get it, ask for help.Someone in the list must know how to do it.Thanks also for
By Paulo <py3km@...> · #238 ·
Re: Bi-Directional amp PCB layout
Forwarded file by e-mail. cheers, Mike --
By Mike W <mike@...> · #237 ·
Re: Bi-Directional amp PCB layout
Hi Mike. Why don't you put these files in the files section of the group?Here in South America we can't access the qsl.net, so this file will be unavailable for a lot of people interested on
By Paulo <py3km@...> · #236 ·
Constructing BITX20
Hi. Please may I introduce myself to the group. I am G0UCP. I am not a market gardener. Relieved to hear that Ashhar only detained by weddings. Have built the O.P. mic. and B.F.O. stages (including Q
By market10gardener <market10gardener@...> · #235 ·
Re: Bi-Directional amp PCB layout
Hi Mke, gee - what a nice neat layout - will have to post my hand drawn efforts for a comparison!. de VK3BFA Andrew
By vk3bfa <ablight@...> · #234 ·
Bi-Directional amp PCB layout
I've just uploaded to my website http://www.qsl.net/g8nxd/bitx/bidir_pcb.zip The files describing a small pcb for the bidirectional IF amp used in the BITX20 Tranciever.
By Mike W <mike@...> · #233 ·
Re: VHF BITX20, irons and other matters
Dear Farhan and friends, Hi! A BITX for 144 would indeed be a very satisfying project but as Farhan has rightly noticed no SSB activity on 2 mts. My IC275 has hardly done any QSO in that mode. I
By Rahul Srivastava <vu3wjm@...> · #232 ·
Re: operating results
Hi Peter, It is a bit disappointing to me to find out that no one replies on your question. Of course the possibilities are discussed what all can be done with the x-tal, that a soldering iron can
By Chris van den Berg · #231 ·
VHF BITX20, irons and other matters
hi, let me apologize for having turned a lurker on the the list. i was co-opted into becoming a wedding co-ordinator of sorts for three marriages in the family. the indian weddings are a long drawn
By Ashhar Farhan <farhan@...> · #230 ·
Re: Any BITX20 builders in Mumbai
Dear Rahul, Thanks for your quick response. I had sent you another email after reading the vuqrp group as well. Today I found both the vuqrp and the bitx groups and was very impressed. I talked to
By null1969 · #229 ·
Re: Any BITX20 builders in Mumbai
Hi all Have I missed something but what is an NP0 capacitor and where is it (or are they) in the circuit ???? Charles G4VSZ
By Charles Darley · #228 ·
Re: Any BITX20 builders in Mumbai
Dear Jay, Sorry to hear abt your unsuccessful trips to the mkt. I dont think any one is making a BITX at Mumbai. While you are there I suggest giving a call to my good friend Charu VU2UPX. Ph:
By Rahul Srivastava <vu3wjm@...> · #227 ·