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Date
Re: Dummy Load Resistors
Mouser has 2,837 of the 1k 3W Xicon in stock, item number 283-1.0K-RC They don't really have to be 1k, there are plenty of other choices. For example, get the same part at 1.2 k, item 283-1.2K-RC and
By Jerry Gaffke · #61105 ·
Dummy Load Resistors
All: A number of you have written me privately saying you're having trouble finding the 1K 3W resistors for the dummy load project (Nov., 2018, QST). If you don't have access to QST, you can download
By Jack Purdum <jjpurdum@...> · #61104 ·
Re: Nextion Basic 3.2 Display will not update #ubitx
I'm replying to an old post, much of it was about SD cards with the Nextion displays (for those that use email, not the web).? I got a 4.3" Nextion Enhanced display for a non-bitx project and tried
By Vince Vielhaber <vev@...> · #61103 ·
Re: QSX 10W HF Linear PA kit
Having built a few already RTFM is valid.? It is compact so take time and check everything. Allison
By ajparent1/kb1gmx · #61102 ·
Re: SolderSmoke Podcast #207 uBITX 15 Mtrs, 60 mtrs, homebrew, antennas, Cubesats
Thanks for telling me about the DX contest and that 15 was opened. Just got D4C , MonteVerde , which seems to be off the coast of Africa, an Island ? 5 watts, uBITX !? 80 meter loop with an antenna
By Michael Shreeve · #61101 ·
Re: Nervous #ubitx-help
Thanks. I will try that. Im not 80 yet, just 76, but eyes and shakes etc seem 100. Sent from Mail for Windows 10 Sent: Saturday, October 27, 2018 11:46 AM To: [email protected] Subject: Re: [BITX20]
By Ruarto <rhgalyan@...> · #61100 ·
Re: Mike element
Chinese on-line retailers sell electrets with external amplifier on a 15x20mm board complete with separate 5 pin header.? This unit seem to be very effective for BITX radios.? Past week? I received
By Frank Dinger , EI7KS · #61099 ·
Re: SolderSmoke Podcast #207 uBITX 15 Mtrs, 60 mtrs, homebrew, antennas, Cubesats
Thanks for posting that, something to listen to. 1000 watt ubitx all band. LOL
By Michael Shreeve · #61098 ·
Re: Nervous #ubitx-help
Yes, I'd say its the soldering that's pretty much the only challenge. I have one friend whos in his 80s and he is challenged by soldering now. Couple of things, 1 is shaking. The way to be successful
By Michael Shreeve · #61097 ·
SolderSmoke Podcast #207 uBITX 15 Mtrs, 60 mtrs, homebrew, antennas, Cubesats
https://soldersmoke.blogspot.com/2018/10/soldersmoke-podcast-207-15-mtrs-60-mtrs.html
By Bill Meara · #61096 ·
Re: New file uploaded to [email protected]
I have just used Allan'sdownload file V1.92-3.5 for tft loading to micro SD card. All looks well but there is not any sound. I wonder as this is a work in progress if this an unresolved problem or
By Fred Aunger · #61095 ·
Re: Nervous #ubitx-help
Ruarto Recognize that much of the assembly is soldering wires. First take some time having fun to identify the version, and how it goes together. The ubitx has a prominent set of 4 relays, compare
By Curt · #61094 ·
Nervous #ubitx-help
I have been lurking and trying to follow these treads and am getting real nervous. I am elderly and not that proficient of a electronic tech, don¡¯t have oscilloscopes, etc. I was told it was ready
By Ruarto <rhgalyan@...> · #61093 ·
Re: No voltage on irf510 gates #ubitx-help
This tells me that there is a fault BEFORE the first mixer. High probability is a shorted trifilar transformer. I found one such case by rocking the toroid and there was a jump in SSB power. Check the
By Raj vu2zap · #61092 ·
Re: QSX 10W HF Linear PA kit
I use one that came with a Dremel. Small and handy. I found the holes for the 0.6mm wire to be a tight fit. After making bifilar transformer the lead wires will not be straight and they struggle to
By Raj vu2zap · #61091 ·
Re: How does the Raduino on the BITX40 know it's in Transmit? #bitx40 #bitx40help #calibration
I hope you are not trying it with the K3 on the same bench. You will fully overload (even the K3). it will give you wrong readings. - f wrote:
By Ashhar Farhan · #61090 ·
Re: No voltage on irf510 gates #ubitx-help
Ah, good to hear! Jerry
By Jerry Gaffke · #61089 ·
Re: PA Alignment of uBITX #ubitx
John The key here is the 100 mA delta, per stage. The receive current varies between minimum volume with no signal, and higher volume with a strong signal. I sense you accomplished it okay. Curt
By Curt · #61088 ·
Re: Raduino Clocks
I'm not so concerned about the actual freqs but I would have thought that CLK2 would be the same freq on either USB or LSB for a given dial freq? but that doesn't seem to be the case. I'm trying to
By Mark M <junquemaile@...> · #61087 ·
Re: QSX 10W HF Linear PA kit
Hi, My package arrived from QRP Labs today. I was surprising how small these kits are. I thought they had only sent the amplifier until I looked much closer at the contents through the bubble wrap.
By Tom, wb6b · #61086 ·