Showing posts with label Mythbuster. Show all posts
Showing posts with label Mythbuster. Show all posts
Saturday, November 16, 2024

Video -- Mythbuster II Rig Gets a Front Panel -- Circuit Build Almost Done

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Yesterday I built a front panel for my Mythbuster II 20 meter SSB transceiver.  I used 1/8 inch plywood available from Amazon.  I cut holes ...
1 comment:
Wednesday, November 13, 2024

SolderSmoke #254 (Audio and Video Versions): Australian Hex Beam Eaters, Fake Wires, Hybrid Rig, Antennas, Mythbuster II Transceiver, Mailbag

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Hex Beam Eater November 13, 2024 SolderSmoke Podcast #254 is available:  Audio Version here:  http://soldersmoke.com/soldersmoke254.mp3 Vide...
1 comment:
Friday, November 8, 2024

Video Update on the Mythbuster II 20 meter SSB Transceiver

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I have added the transmit circuitry. I described building practices. We listen to the receiver again. I talk about plans for transmit/rec...
5 comments:
Saturday, November 2, 2024

More Background on the Mythbuster II Rig (and a short video)

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Above is a short clip of me hearing an old friend on the new receiver.  TRGHS.  A couple of guys on Facebook asked for a schematic for thi...
7 comments:
Wednesday, October 30, 2024

Bill N2CQR Builds Yet Another Mythbuster Transceiver

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  This one is for 20 meters (no need for 75) and will go to the Dominican Republic. 6 crystal filter at 5.2 MHz. VFO from old Yaesu FT-101 ...
7 comments:
Monday, September 30, 2024

Homebrew Receiver -- AG5VG's 20 Meter "Mythbuster" Receiver

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Michael has the receiver done and is wisely heeding Farhan's advice about pausing to enjoy the homebrew sounds.   I was pleased to see s...
Friday, May 17, 2024

Band Imaging Rigs (Receivers and Transceivers) -- Video from WA7MLH

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In the video above (from 16 years ago) we see Jeff Damm, WA7MLH's  band-imaging receiver for 75 and 40 using an IF of 1.750 MHz and a VF...
7 comments:
Wednesday, March 13, 2024

Using the RF Power Amplifier of the BITX40 Module

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  PA shematic from the BITX 40 Module Click on the diagram for a better view C.F. Rockey W9SCH (who alerted us in SPRAT 22 to the chicken sa...
5 comments:
Thursday, December 14, 2023

Mythbuster Video for the Lamakaan Amateur Radio Club of Hyderabad, India

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I was really pleased when Farhan asked me to speak at this year's Lamakaan Amateur Radio Club convention.  He asked me to talk about my ...
Friday, October 6, 2023

A Pretty Good Troubleshoot -- Fixing the Transmitter in my 75/20 meter Mythbuster Transceiver -- Mind the Gap!

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Bidirectional Termination Insensitive Amplifier by W7ZOI and K3NHI All of a sudden the transmitter in my 75 & 20 meter dual band homebre...
1 comment:
Monday, July 10, 2023

Martein's Bandpass Filters - PA3AKE

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Above you can see the really nice 15 meter filter that I built using data provided by Martein PA3AKE.  https://martein.home.xs4all.nl/pa3ake...
9 comments:
Monday, September 5, 2022

Why Do Some VFOs Tune More Linearly Than Others?

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This has been one of the major complaints about our beloved analog LC VFOs:   The frequency tuning on these circuits is often not linear.  F...
3 comments:
Monday, April 25, 2022

75/20 - 17/12 Two Homebrew Rigs in Scrap-Wood Boxes

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  I moved the 17/12 Rig off the workbench and placed it (as planned) atop the Mythbuster rig.  Now I have four bands easily accessible.  In ...
3 comments:
Friday, February 25, 2022

Split Stator Temperature Compensation Also Used in Yaesu FT-101

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The eagle eye of VE3EAC spotted this (he also correctly pointed to a tiny broken "tine" as the cause of my  HP8640B woes).   I ha...
Thursday, December 30, 2021

McCoy SSB Crystal Filters (1963) -- But Apparently NOT the Real (Lew) McCoy

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  Last month we were talking about this company.  Someone thought it was run by Lew McCoy of ARRL Homebrew fame, but it now appears that ou...
Friday, December 10, 2021

The Lamakaan Annual Radio Convention Starts Today!

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  The Lamakaan Amateur Radio Club's annual convention begins today in Hyderabad, India.  This is Farhan's club so it is sure to be a...
Friday, September 24, 2021

Video: N2CQR Talks About Homebrew SSB with The Vienna Wireless Society's Makers Group

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It must have been great to have been a ham during the heyday of homebrew gear.  Imagine walking into your local club and finding a dozen or ...
1 comment:
Monday, August 30, 2021

Adding Automatic Gain Control to the Termination Insensitive Amplifier

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  Earlier this month Paul VK3HN had a very interesting blog post about adding Automatic Gain Control to Termination Insensitive Amplifiers ...
2 comments:
Friday, August 27, 2021

SolderSmoke Podcast #232 -- Mythbuster, Pete's Tube CW Rig, Pete's DC RX and Simple SSB Rig, NanoVNA and TinySA, Very FB Mailbag

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SolderSmoke Podcast #232 is available -- Crank it in Robert! http://soldersmoke.com/soldersmoke232.mp3 Featuring a guitar intro by Pete ...
1 comment:
Tuesday, August 24, 2021

Mythbuster Video #17 Boxing it Up, Tuning Filters, Tapping a Heat Sink, QRO Dreams....

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I made a cabinet out of scrap packing material. I show how I tune LC filters by squeezing the turns on toroidal inductors. I tap a heatsi...
1 comment: