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Date
Replacing VFO with DDS on bitx20a #bitx20help
Hello Just joined the group so hello to everyone. I have the the Hendricks Bitx20A kit. I already built a DDS board to replace the on board VFO. I have a simple question. What components are needed to
By oberman.l@... · #32974 ·
Re: Display trim
There is another thread on here showing some examples of various bezels. I always use a nibbler to cut the square holes. -- John - WA2FZW
By John P <j.m.price@...> · #32973 ·
Display trim
Like I'm sure many others have done, I salvaged an existing project box for mounting my bitx. Even using my Dremel tool, I always? find cutting rectangles for meters and displays a challenge to get
By Brent Seres/ VE3CUS · #32972 ·
Re: Another side tone question
Allard's scheme works fb when using the headphones. My problem is the low side tone level when using the speaker, probably caused be the speaker impedance being much lower than the headphones. I
By Brent Seres/ VE3CUS · #32971 ·
Re: Geloso Dynamic Microphone #bitx40help
You might be better off just modifying the microphone to use an electret mic element. Michael VE3WMB
By Michael VE3WMB · #32970 ·
Re: Rad Raduino #bitx40help
Martin, the calibration mode is normally only activated when pin A2 is connected to ground. However this pin is normally not used. Double-check your connections. Perhaps you have a short between pin
By Allard PE1NWL · #32969 ·
Rad Raduino #bitx40help
Hi all i have finally got my butt in to gear and installed my?Raduino ?i have installed the?v1.24 software and looks great but?now the prob i have is when i key the tx via the cw mod it resets
By martin Fraser · #32968 ·
Re: 3d printers
Enjoy http://www.vmarsmanuals.co.uk/archive/files_index.htm
By Lawrence Galea · #32967 ·
Re: 3d printers
Lots of links http://www.vmars.org.uk/Vintage_Radio_Websites Regards Lawrence jjpurdum@...> wrote:
By Lawrence Galea · #32966 ·
Re: Geloso Dynamic Microphone #bitx40help
You might want to reconsider, Francesca - try FETs with Megohm impedances (pseudo-hollow-state?)- and even ordinary transistors go well below 500 ohms in common-base configuration.
By Dexter N Muir · #32965 ·
Re: Geloso Dynamic Microphone #bitx40help
I used a Icom Hm36 element into old old 4 pin micphone, Works very well. All solid state input impedance? are 500-600. I did add a 10k variable? potential? to adjust the gain Lady Francesca W7ltg
By Francesca Wine <francescawine@...> · #32964 ·
Geloso Dynamic Microphone #bitx40help
I have Farhan's BITX40 V3 kit.? I am wondering if I can use my vintage Geloso dynamic microphone with it.? I know that I would have to use a capacitor to block the DC for electret mics, however the
By Kevin Luxford · #32963 ·
Re: 3d printers
My first rig was a homebrew 15W CW transmitter that my Elmer helped my build while I waited for my Novice license in 1954. The receiver was a Hallicrafters S40. I graduated to a DX-20 as my lawn
By Jack Purdum <jjpurdum@...> · #32962 ·
Re: 3d printers
I have spent countless hours down in my shop making chassis, boxes, and all sorts of housing for my projects over the years.? I have just about everything I could need to cut, drill, bend, machine,
By DuWayne Schmidlkofer · #32961 ·
Re: 3d printers
Pat: to smell the dung, and the petrol/diesel fumes of the rest of the world whizzing past. :)
By Dexter N Muir · #32960 ·
Re: 3d printers
Tell it to the young'uns! Better still, stoke them rigs up as they visit. The 'petrol-heads' drool over a big V8 screeching away from the lights - I treasure a visit to a Hamshack where he stoked up
By Dexter N Muir · #32959 ·
Re: 3d printers
If you can use a car why bother commuting in a bullock cart.? 73eesPatVU3PAT Sent from Yahoo Mail on Android On Sat, Sep 30, 2017 at 1:16 AM, Lawrence Galea<9h1avlaw@...> wrote: Hi JohnGuess
By Patrick Pugh Sawian · #32958 ·
Re: 3d printers
My first radio was a Tempo One Tube radio like my fathers but in a black case. This was in the late 90's. Chris
By Christopher Miller · #32957 ·
Re: 3d printers
I still have, and restore, and use, tube radios. I have a collection of antique broadcast band receivers that dates from 1921 to the 1930's, an antique (1920's) homebrew ham receiver with the
By Richard Andrew Knack · #32956 ·
Re: 3d printers
There would still be a 'niche' for the old gear - Ham Nation's Pine Board Project proves that. There may even be a (small) cadre of Ham youth interested in 'how these old things were made' enough to
By Dexter N Muir · #32955 ·