Re: uBITX Questions
I am using the schematic from: http://www.phonestack.com/farhan/ubitx/ubitx.html ( http://www.phonestack.com/farhan/ubitx/ubitx.html )
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Arthur Bryant
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#33207
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Re: uBITX Questions
Here's the post about replacing the LC BFP wih a crystal filter: ?/g/BITX20/message/30538 ( /g/BITX20/message/30538 ) I remember that one. Don't remember any mention
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Jerry Gaffke
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#33206
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Re: New bitx40 build.
Added another accessory board to the rig. Built up the duinovox by KB9RLW. It works great for FT8 even with the bodged wiring for testing. The VOX is cheap and easy to build.? and the board plugged
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Randy W5ZJ
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#33205
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Re: Bitx20V3b/3c - Need Part Information for L1-L3
Sorry and thanks, John B (did you get "sloop" all thru school?) - I stand corrected and informed - though there are more analogs than just bedsides :) 73
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Dexter N Muir
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#33204
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Re: uBITX Questions
I gave those a value of 0, to indicate that those capacitors are not needed. That said, i havent found time to update the circuit, essentially, the new version uses four LPFs instead of two, a 45 mhz
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Ashhar Farhan
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#33203
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Re: Bitx20V3b/3c - Need Part Information for L1-L3
Thanks to all that responded. Great information! 73, Chris w0anm
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Chris Kovacs Sr
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#33202
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Re: Bitx20V3b/3c - Need Part Information for L1-L3
An analog radio, Dex. An analog one. john AD5YE
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John Backo
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#33201
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Re: Bitx20V3b/3c - Need Part Information for L1-L3
What, you don't have an old no-longer-functioning AM/FM bedside clock/radio in the junk pile? Shame! :) 73 ... Dex ZL2DEX the dumpster-diver who has 2 ATM.
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Dexter N Muir
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#33200
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Re: Bitx20V3b/3c - Need Part Information for L1-L3
This page has a few suggestions for alternatives:?http://www.pa3hcm.nl/?p=1337 ( http://www.pa3hcm.nl/?p=1337 )
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Karl Heinz Kremer, K5KHK
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#33199
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Re: Bitx20V3b/3c - Need Part Information for L1-L3
Yes -- they used to have them. They are listed under Audio/Signal Transformers. There is presently no stock, and I doubt they will have any more. And yes, Mike, no one is making analog FM radios any
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John Backo
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#33198
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Re: Bitx20V3b/3c - Need Part Information for L1-L3
http://www.mouser.com/ProductDetail/Xicon/42IF123/?qs=%2fha2pyFaduj%252bcqTheNTrF2tyYdsoAzezUfZlxNYiE5w%3d
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Michael Hagen
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#33197
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Re: Bitx20V3b/3c - Need Part Information for L1-L3
Mouser have them they are listed under audio transformers, but the data info tells you what they are 10 mins ago they showed over 2000 in stock. Ted ZL1BQA
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Ted Doell
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#33196
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Re: Bitx20V3b/3c - Need Part Information for L1-L3
These FM Radio IF Transformers used to be at Mouser, I bought them. Maybe have 5 or 6 in a plastic box? They dropped them now, called obsolete? So no one must be making FM radios that used these? I
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Michael Hagen
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#33195
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Re: Bitx20V3b/3c - Need Part Information for L1-L3
These are 10 MHz IF filters. You should be able to find them somewhere, even in an old FM radio. Sunil will most likely send you the parts if you let him know. The BITX parts are IF transformers made
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John Backo
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#33194
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Bitx20V3b/3c - Need Part Information for L1-L3
I ordered a Bix20V3b parts kit from India. Unfortunately, the kit was missing the metal coil inductors L1 through L3 that are used in the bandpass filter section ov the Bix20 Version 3 b/c boards. The
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Chris Kovacs Sr
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#33193
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Re: uBITX Questions
I'm not going to regurgitate the whole of this thread here, Jerry, but will offer this: I reply online, and refrain from the tedium of cut-and-paste for context. I haven't tried it here, but on
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Dexter N Muir
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#33192
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Re: BITx40 Block Diagram ?
My turn to nitpick at myself :) Original Bitx has a pot, not the rotary encoder. This is what I built. Anyway, have fun with your presentation :) Cheers, Goran
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Goran VE6GPO
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#33191
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Re: BITx40 Block Diagram ?
Re-done! :) feel free to use this one 73 Goran VE6GPO
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Goran VE6GPO
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#33190
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Re: BITx40 Block Diagram ?
Yes, you are both right, that's what happens when you copy/paste :( ... Dale, if you are going to re-do this for your presentation, note this. Thanks to Keith and Lawrence. 73, Goran VE6GPO
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Goran VE6GPO
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#33189
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Re: uBITX Questions
Vince is right on this one. If it's not worth 3 seconds of your time to include a few bytes of context when needed,? it's certainly not worth 3 minutes of my time to ferret it out. Nor that of the
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Jerry Gaffke
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#33188
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