Showing posts with label Antuino. Show all posts
Showing posts with label Antuino. Show all posts
Friday, September 16, 2022

Fixing Up An Old Homebrew Rig -- Barebones Superhet and VXO 6 Watter

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  I'm not exactly sure why I pulled this old rig off the shelf, but I'll write up what I did -- I often use this blog as a kind of n...
3 comments:
Monday, October 25, 2021

Putting a Ceramic Filter in the "Mate for the Mighty Midget" Receiver

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It is really simple.  I had one of the +/- 3kHz (6 kHz wide) 455HT filters on hand.  The spec sheets call for 2000 ohms at both ends, but lo...
3 comments:
Friday, August 6, 2021

Farhan and the SBITX on Hack-A-Day

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 https://hackaday.com/2021/08/06/sbitx-hackable-hf-sdr-for-the-raspberry-pi/
Monday, August 2, 2021

Mythbuster Video #12 -- Bandpass Filters

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The really cool part comes at the end when I put the scope probe on the output, then on the input of the bandpass filter.  Exciting stuff my...
1 comment:
Monday, July 12, 2021

Mythbuster Video #2 -- 10 Pole Crystal Filter

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This is a 5.2 MHz crystal filter. I used the G3UUR method for determining the crystal's motional parameters. I then used Dishal and AA...
5 comments:
Wednesday, June 30, 2021

10 Pole Crystal Filter Passband as Seen in Antuino and NanoVNA

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I continue to work on the "Mythbuster" rig,  but I am taking it slow, trying to learn something from each stage.  I'm especial...
Monday, June 22, 2020

Feedback on Farhan's FB Feedback Amp Video

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As I said a couple of days ago, Farhan has put out a very informative video on amplifier design. During the video we can see him determin...
2 comments:
Saturday, June 20, 2020

Excellent Video from Farhan on Amplifier Design

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Farhan has produced a really excellent video explaining the theory behind the feedback amplifiers that we use in so many of our circuits....
2 comments:
Saturday, December 21, 2019

SolderSmoke Podcast #216 Is Available: BITXs, Paesano, Paraset, ET2, Antuino, Mailbag

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Bill's uBITX with HB keys and the mic that used to be the podcast mic!  SolderSmoke Podcast #216 is available  21 December 2019 ...
5 comments:
Wednesday, December 11, 2019

Antuino Filter Analysis

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Farhan had given me one of the early Dayton Hamvention models of the Antuino SWR/PWR/SNA RF test lab.  He later identified the need for ...
Saturday, August 3, 2019

Antuino Mods and Updates from Farhan

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Both messages from the BITX20.io email group. 26 July 2019   Peeps: The Antuino has been in use for ove...