Just go to http://soldersmoke.com. On that archive page, just click on the blue hyperlinks and your audio player should play that episode.
http://soldersmoke.com
Happy Arduino Day! Pete's Belthorn III Transceiver (with cool color display) Bill's BITX 20 (that used to be a BITX20/40) AD9850 DDS added to Barebones Superhet Jean Shepherd on Parasitic Oscillations, Obsession, and Madness Simple Test Gear for the Homebrewer Digital Oscilloscopes and their amazing capabilities Dongles and other great stuff in SPRAT 162 The BIG St. Patrick's Day Solar Flare VK6MV's Amazing Rhombic (+) VK7XX (Dos Equis!) A Bit of BITX History Pete going KX3 QRO
A good IF is 8.192mhz with a 15.360Mhz LO can be done using crystal for LO (Use two in super VXO).
Order of equipment obtainium...
Decent soldering iron/station Good multimeter (ohms, Volts, amps). AADE LCII parts is not parts.. measure them. Frequency counter simple is good, to 50mhz atleast Scope, a good one. Rigol adds a lot to capability.
Oh a spec analyser is just that if you add a tracking generator now you can do SNA(scalar network analyser).
However... The one device I use is dirt simple. A 50 uA meter, two diodes in voltage doubler and two caps. Whatsitdo, RF detector. The diodes are right on the back of the meter. One cap is across the meter and the other is from the diodes as a "probe". If the meter can be moved there is RF, if an amp with no input moves the meter its oscillating, if the oscillator doesn't move the meter its defunct. It was my first RF measuring tool some 50 years ago and I still use it.
I am a longtime listener and look forward to your podcast each month! I had to comment on Pete's crystal radio project. When I was six or seven in the fifties, my dad and I built a crystal radio and had the same issue... not enough gain. Dad suggested we build a transistor amplifier. As you told the story, somehow I knew that you too would say you used a beautiful metallic purple-blue Rayteon CK722! My amp was in a clear plastic box and I loved showing my friends the cool, magic "transistor". Now, back to my K2, KX3, Raspberry Pi and Arduino!
73, Mike, W8NWA (My dad's first call from the 30s)
"SolderSmoke -- Global Adventures in Wireless Electronics" is now available as an e-book for Amazon's Kindle.
Here's the site:
http://www.amazon.com/dp/B004V9FIVW
Bill's OTHER Book (Warning: Not About Radio)
Click on the image to learn more
Where are the readers of SolderSmoke Daily News?
Pete Juliano N6QW
SolderSmoke Co-Host and Master Homebrewer
Dean Souleles KK4DAS
With beret and with a Michigan Mighty Mite in hand
HF FM transmitter with Franklin oscillator
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Recently I've been working on an AM transmitter for 40m. It occurred to me
that FM should be much simpler to produce. I had ordered some varactor
diodes re...
Toro MX4250 deck idler maintenance
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The Toro MX4250 is a ZT ride on mower (riding mower). During recent spindle
maintenance, I noted that the idler bearings were quite rough. This was
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A Few Free Swapmeet Finds
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Every year in the summer, The California Historical Radio Society (CHRS) in
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K4OGO
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Episode 521 - Walt Hudson - K4OGO Walt Hudson, K4OGO, has always lived by
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Hollow-State Design, 3rd Edition
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Hollow-State Design, 3rd Edition is available from: Lulu Press:
tinyurl.com/hollowstatedesign3 eBay: search for “hollow-state design”
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I Finally Bought My Dream Airplane
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2000 47pF Caps ...
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2000 47pF NP0 capacitors look like? Thanks to John, AB2XT I will never run ...
Broadcast Band AM Radio
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See the YouTube series for more information:
http://www.youtube.com/c/CharlieMorrisZL2CTM
Buffer Amplifier
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New QRP Cluster From OM0ET and OM6APN
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By DX EXPLORER
DX EXPLORER
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3D printed project boxes
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I have been busy with some other things that have kept me away from
electronics projects for quite a while. Now I can get back to them, but
realize I n...
Daylight Again – An all Analog Radio
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What’s all this? In 10 seconds, A high performance, 7MHz, 5 watt SSB rig
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Digi-chirp! Digital synthesis of ‘nostalgic’ CW
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The bottom ends of 80, 40 and 20m are not what they used to be. For
starters, the busiest part is the digital segment where computers talk to
computers – l...
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A Simple Speech Processor
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Over the last few weeks I had been thinking to build a small AF speech
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A New Look for your uBitx!
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Adding a "Cool Blue" Display to your uBitx!
The standard "green background" with black lettering frequently reminds me
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hi, pete, and juliano
ReplyDeletei would love to add aerial analyzer like one designed by VK5JST in the list of test gear
nice treatment of soldersmoke #174
regards
sarma from India
Bummer of the Bitx40.
ReplyDeleteA good IF is 8.192mhz with a 15.360Mhz LO can be done using crystal for LO (Use two in super VXO).
Order of equipment obtainium...
Decent soldering iron/station
Good multimeter (ohms, Volts, amps).
AADE LCII parts is not parts.. measure them.
Frequency counter simple is good, to 50mhz atleast
Scope, a good one. Rigol adds a lot to capability.
Oh a spec analyser is just that if you add a tracking generator now you can do SNA(scalar network analyser).
However... The one device I use is dirt simple.
A 50 uA meter, two diodes in voltage doubler and two caps.
Whatsitdo, RF detector. The diodes are right on the back
of the meter. One cap is across the meter and the other is from the diodes as a "probe". If the meter can be moved there is RF, if an amp with no input moves the meter its oscillating, if the oscillator doesn't move the meter its defunct. It was my first RF measuring tool some 50 years ago and I still use it.
Allison
Sinc L/C = VFO and Crystal = VXO..
ReplyDeletehow about DDS chip = DXO?
Bill & Pete,
ReplyDeleteI am a longtime listener and look forward to your podcast each month! I had to comment on Pete's crystal radio project. When I was six or seven in the fifties, my dad and I built a crystal radio and had the same issue... not enough gain. Dad suggested we build a transistor amplifier. As you told the story, somehow I knew that you too would say you used a beautiful metallic purple-blue Rayteon CK722! My amp was in a clear plastic box and I loved showing my friends the cool, magic "transistor". Now, back to my K2, KX3, Raspberry Pi and Arduino!
73, Mike, W8NWA (My dad's first call from the 30s)