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Re: technical question about filter capacitors
The SMD parts I get from Digi-Key and Mouser come in small plastic labeled bags. I just leave them in the bags and line up the bags in storage boxes. The labels have the value, working voltage and
By Mike N2MS · #88120 ·
Re: technical question about filter capacitors
Gerard: I would like to put a module that decodes the MORSE directly on a PC This is very hard to do well. It's not too hard to get one to decode the W1AW code practice sessions because those are
By Jack, W8TEE <jjpurdum@...> · #88119 ·
Re: technical question about filter capacitors
Thank you Jerry for your response. The basic question was what type of capacitors were on the filters at the output of the UBITX power amplifier. The answer is clear, and given by the creator, it is
By Gerard · #88118 ·
Re: technical question about filter capacitors
If we are talking about storage, one that I use is coin envelopes and VCR tape boxes, that I have glued dividers in the width of the coin envelopes.? I expect VCR tape boxes are pretty rare? now
By John KG9DK · #88117 ·
Re: technical question about filter capacitors
Hi, I just string my SMD parts, by type and value, on a wire like on a fish stringer (threading through the last hole in the strip) and hang them on my workbench peg board.?? Takes up hardly any
By Mark - N7EKU <n7eku@...> · #88116 ·
Re: technical question about filter capacitors
If you have a spare Nano clone for your Bitx40 or uBitx, then you have all you need to build a capacitance meter: /g/BITX20/message/52471 You can use the Arduino IDE serial monitor on
By Jerry Gaffke · #88115 ·
Re: Split power for PA on uBITX v6
Hi, Since there is still the 3pin header there, like in the previous versions, that seems the obvious place to input the higher voltage.? I imagine he just placed a joining trace between the
By Mark - N7EKU <n7eku@...> · #88114 ·
Re: technical question about filter capacitors
Are you happy with it? A couple of Amazon reviews said it wasn't much good for caps. - Jerry KF6VB
By [email protected] <jerry@...> · #88113 ·
Re: technical question about filter capacitors
bought one of these.... jim
By jim <ab7vf@...> · #88112 ·
Re: uBITX V6 Specifications.
here some informations [email protected] | Project : Ubitx go box with batteries (topic will be updated upon works done) (
By Gerard · #88111 ·
Re: technical question about filter capacitors
The small jars remind me of a bacteria farm. LOL. Each one has its own method, my SMD being in strips, I keep them in plastic bags. It¡¯s not bad and spring prices here:
By Gerard · #88110 ·
Re: uBITX V6 Specifications.
My 12v 20Ah LiFePo4 battery weighs about 7 lbs. What have you found that would weigh half of that? Max KG4PID
By Max · #88109 ·
uBitx v6 case
Hello All, I am building a small linear amplifier to go with my uBITXv6. I got a tiny 70W RF deck from China - marketed as "100W", but that's only if you feed it 16V. Also a card with switchable
By [email protected] <jerry@...> · #88108 ·
Re: uBITX V6 Specifications.
Earl, That should get you close to 48hours depending on SSB vs CW operation.? One caution with CW on the ?BITX, the selectivity of the rig is 2.7kHz (a standard SSB value), so you might want to add
By Evan Hand · #88107 ·
Re: technical question about filter capacitors
Walmart has clear plastic cases of 24 of those jars for hobby use. Here is a pix of one at the bottom of this page.. Earl Cox? KB5UEW?Reply or E-mail me at:? kb5uew@...
By Earl Cox <kb5uew@...> · #88106 ·
Re: uBITX V6 Specifications.
SSB, CW will be most of the time. I have not dived into digital yet. I am looking at 12V, 24AH. I can achieve that in a case of about 5 1/4" X 4" X 3 1/4" weighing a little over 3 lbs. Earl Cox?
By Earl Cox <kb5uew@...> · #88105 ·
Re: uBITX V6 Specifications.
Earl, I will verify when I get to my rig.? Until then, what mode will you be using?? SSB voice, vs CW, vs digital modes makes a difference.? If digital then I would estimate that you need 720mah
By Evan Hand · #88104 ·
Re: technical question about filter capacitors
Good idea. I typically take one jar and mount all of the caps/resistors of that value on the board at one time, then move on to the next value. As a result, I never have more than one jar open at a
By Jack, W8TEE <jjpurdum@...> · #88103 ·
Re: technical question about filter capacitors
I have something similar I bought from Walmart. Works for me. Earl Cox? KB5UEW?Reply or E-mail me at:? kb5uew@...
By Earl Cox <kb5uew@...> · #88102 ·
Re: uBITX V6 Specifications.
Thanks for the info. It helps greatly when sizing the battery. I'm trying to size it for 48 hours operation with 20% transmission. Earl Cox? KB5UEW?Reply or E-mail me at:? kb5uew@...
By Earl Cox <kb5uew@...> · #88101 ·