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 friends!
Posts
6 minutes ago
Monday, August 2, 2021
Subscribe to:
Post Comments (Atom)
Serving the worldwide community of radio-electronic homebrewers. Providing blog support to the SolderSmoke podcast: http://soldersmoke.com
Smoke! Solder Smoke!
Thanks to Dino KL0S
Sponsor SolderSmoke!
Donate to SolderSmoke!
WANTED BY THE FBI
Listen to Past Episodes
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
A book about life overseas
Click on the image!
SolderSmoke Store
Click on the mug!
SolderSunSpots
Solar and Geophysical Activity Summary
Frank Jones, W6AJF
TOPIC INDEX
- "The Art of Electronics" (8)
- 10 meters (15)
- 12 meters (7)
- 15 Meters (10)
- 15-10 Transceiver (21)
- 160 meters (14)
- 17 meters (47)
- 1712 Rig (13)
- 2 meters (4)
- 20 meters (15)
- 20meters (1)
- 2200 and 630 meters (1)
- 30 meters (2)
- 40 meters (89)
- 6 meters (2)
- 60 meters (8)
- 75 meters (10)
- AA1TJ (51)
- AA7EE (2)
- Adams -- Chuck (9)
- aeronautical mobile (1)
- Africa (12)
- AGC (1)
- AI (9)
- aircraft (32)
- Alaska (8)
- All American Five (2)
- AM (75)
- Amateur Television (16)
- amplifier theory (48)
- Anguilla (1)
- Antarctica (7)
- antennas (128)
- Antuino (13)
- April 1 (17)
- Arduino (124)
- arduinos (1)
- Argentina (10)
- Armstrong -- Neil (1)
- Armstrong -E. Howard (18)
- ARRL (8)
- astronomy (117)
- audio amplifiers (15)
- Aurora (9)
- Australia (120)
- Austria (1)
- Azores (30)
- balloon (23)
- Bamford --Dave (6)
- Bangladesh (1)
- Barbados (9)
- beacon (22)
- Belgium (9)
- Beverage--Harold (4)
- bicycle (10)
- Billy (2)
- biology (1)
- bitx (9)
- BITX DIGI-TIA (42)
- BITX20 (168)
- BITX40Module (76)
- BITX60 (2)
- boats (6)
- book (78)
- books (138)
- Bose-JC (1)
- Botswana (1)
- Brazil (13)
- Brazil. Australia (1)
- Brazil. Belgium (1)
- broadcast radio (4)
- Budlong -- Merrill (1)
- Burdick -- Wayne (12)
- California (22)
- Campbell-Rick (22)
- Canada (48)
- Canary Islands (1)
- Carlson -- Mr. (10)
- Carney-Todd (8)
- Carr -- Joseph (2)
- cartoons (28)
- CB (6)
- CBLA (7)
- Cebik-L.B. (3)
- Central America (1)
- ceramic resonators (11)
- Chile (6)
- China (43)
- Cicadas (1)
- climate change (4)
- clocks (1)
- Cloud Chamber (3)
- Clubs (50)
- Collins -- A. Frederick (2)
- Collins -- Art (8)
- Colombia (1)
- computer history (40)
- construction techniques (9)
- COVID (2)
- Crane-Bob (11)
- Croatia (3)
- crystal radio (32)
- Cuba (24)
- CW (106)
- CW. (3)
- Cyprus (1)
- Czech Republic (2)
- Darlington--Paul (1)
- DC Receiver Build (10)
- DDS (31)
- DeMaw--Doug (75)
- Denmark (2)
- DiFX (6)
- digital logic (10)
- digital modes (20)
- Dilbert (3)
- direct conversion (134)
- Disaster Relief (1)
- Dobbs-George (33)
- Dominican Republic (63)
- Drake 2B (70)
- Drake TR-3 (2)
- Drones (1)
- DSB (95)
- Dubai (5)
- DX-100 (17)
- DX-390 (2)
- DX-40 (3)
- earthquake (4)
- Echolink (3)
- Ecuador (1)
- Edison -- Thomas (4)
- Einstein -- Albert (12)
- El Salvador (1)
- Elecraft (7)
- election (3)
- Electric Radio magazine (9)
- electrolytic capacitors (1)
- Ellsworth -- Jeri (6)
- Elser-Mathes Cup (1)
- EM Waves (9)
- EME (12)
- Emergency Power (5)
- EMRFD (13)
- enclosures (4)
- ET-2 (14)
- Europa (1)
- Evans-- Grayson (20)
- Faraday -- Michael (4)
- Farhan (245)
- Farnsworth--Philo (5)
- Faroe islands (2)
- FCC (3)
- FDIM (1)
- feedback (2)
- Fessenden -- Reginald (2)
- Feynman -- Richard (6)
- Field Day (9)
- Filters (111)
- Finland (1)
- Finnland (1)
- Fish Soup 10 (4)
- Fishpool -- Tony (15)
- Florida (3)
- FM (8)
- France (43)
- Franklin Oscillator (3)
- frequency counter (27)
- Fried--Limor (3)
- Friedrichs -- HP (1)
- FT-8 (5)
- Fusion (3)
- Gale -- Todd (6)
- Germany (61)
- Gilbert Cell (4)
- Glue Sticks (3)
- Google (2)
- GQRP (18)
- greece (3)
- Green -- Wayne (8)
- Guapo (1)
- Guatemala (1)
- Guth -- Eric (11)
- h (1)
- Haiti (3)
- Hall-Douglas (1)
- Hallicrafters (66)
- Ham Radio Workbench (1)
- Hamel--Armand (19)
- hamfest (9)
- Hamfests and Flea Markets (66)
- Hammarlund (25)
- Harden-Paul (3)
- Harper -- Rex (16)
- Harris -- Frank (5)
- Hawaii (3)
- Hayward--Wes (83)
- HB2HB (30)
- heathkits (62)
- heatsinks (3)
- Heaviside -- Oliver (1)
- Heil -- Bob (4)
- Herring Aid 5 (34)
- Hex Beam (3)
- Hodgepodge rig (10)
- homebrew (10)
- homebrew hero (17)
- homebrew transistors (9)
- Honduras (1)
- Hong Kong (2)
- HP8640B (8)
- HQ-100 (10)
- Hungary (8)
- Hunkin -- Tim (2)
- HW-101 (8)
- HW-7 (7)
- HW-8 (23)
- IBEW (2)
- Iceland (2)
- ICs (7)
- Idaho (1)
- IGY (7)
- impedance matching (1)
- India (124)
- Indonesia (7)
- integrated circuits (14)
- Interference (6)
- Ireland (15)
- IRF510 (3)
- Israel (24)
- Italy (85)
- Jaguey (2)
- Jamaica (2)
- Japan (41)
- JBOT (17)
- Jean Shepherd (55)
- Jim Williams (4)
- Job Opportunities (2)
- John Edwards (2)
- Jones -- Frank (17)
- Jordan (2)
- JT65 (2)
- Judica Cordiglia (4)
- Juliano -- Pete (291)
- Jupiter (10)
- K1JT (9)
- K5WDW (1)
- Kang- KPS (1)
- Karl and Jerry (1)
- keyers (5)
- Keyser -- Ian (5)
- Kits (49)
- KL7R (13)
- kludge (9)
- Knack Stories (174)
- Kraus -- John (1)
- Lady Ada (5)
- Lafayette HA-600A (21)
- Large Hadron Collider (2)
- Laser (15)
- Lebanon (1)
- LED (8)
- LEDs (2)
- Lewallan -- Roy (6)
- Lewallen --- Rick (1)
- lexicon (7)
- Light Beam Telephony (7)
- Light Bulbs (3)
- Lightning (6)
- Linux (12)
- Lithuania (1)
- LM373 (1)
- Long Delayed Echo (2)
- LtSpice (30)
- M0NTV (3)
- Macdonald -- Copthorne (4)
- Madagascar (1)
- Mafalda (1)
- magazines (39)
- MAKE (5)
- Malaysia (1)
- Marconi (1)
- Marconi-Guglielmo (19)
- Mars (49)
- Mate for the Mighty Midget (23)
- math (1)
- mathematics (16)
- Maxwell -- James Clerk (8)
- McCoy -- Lew (22)
- Mercury (1)
- metal work (12)
- meteors (7)
- Mexico (7)
- MFJ Cub (2)
- Michigan Mighty Mite (103)
- microcontrollers (43)
- Microphone (25)
- military radios (9)
- Mims -- Forrest (5)
- Minima (17)
- minimalist computing (23)
- minimalist radio (101)
- mixer theory (87)
- Mixers (3)
- mongolia (1)
- Montana (3)
- Montenegro (2)
- moonbounce (13)
- Morris -- Charlie (8)
- movie review (1)
- Moxon (18)
- Muppet Boards (1)
- Murphy -- Mike WU2D (8)
- Murphy -- Steve (7)
- museum (2)
- music (28)
- Mythbuster (44)
- Namibia (1)
- nano UK. New Zealand (1)
- NanoVNA (25)
- NE602 (16)
- Nepal (3)
- Netherlands (37)
- Netherlands. (4)
- New York City (24)
- New Zealand (27)
- noise (2)
- Norway (17)
- Novice Station (2)
- nuclear power (1)
- Numbers stations (3)
- Old radio (295)
- Old Smoke (12)
- OLED (8)
- oscilloscope (35)
- Other homebrews (1)
- Pakistan (1)
- Panama (1)
- parachute (8)
- Paraguay (1)
- Parasets (7)
- Parent -- Allison (5)
- Parfitt-- Dale (9)
- Parker--Peter (58)
- Parts suppliers (59)
- Penson-Chuck (3)
- Pete (1)
- Phase Locked Loop (1)
- Phase Noise (4)
- phasing (10)
- Phasing Rigs (40)
- Philippines (3)
- photography (6)
- Physics (47)
- poetry (11)
- Poland (4)
- Polyakov--Vladimir (13)
- Portugal (4)
- Project Gutenberg (1)
- propagation (66)
- PTO (16)
- Puerto Rico (6)
- PY2OHH (1)
- Qatar (1)
- QCX (3)
- QRP (150)
- QRP. Germany (1)
- QRSS (75)
- QST (5)
- Quarantine (33)
- R-390 (4)
- R/C plane (11)
- radio astronomy (49)
- radio history (255)
- Rainey -- Michael (55)
- Raspberry Pi (31)
- Reber--Grote (3)
- regen (15)
- Regens (75)
- reggie (1)
- repair (19)
- resonance calculations (1)
- Reunion Island (1)
- Reverse Beacon Network (13)
- Rider -- John (1)
- ro (1)
- Roberts--Steven (1)
- robot (2)
- rockets (29)
- Rockey -- C.F. (3)
- Romania (6)
- RTTY (1)
- Rudy Severns (1)
- Russia (45)
- S-38E (12)
- San Francisco (1)
- Sardinia (2)
- satellites (159)
- Saturn (8)
- sBITX (11)
- Schwartz-Eric (1)
- science fiction (9)
- Scotland (11)
- Scott-- Richard N3FJZ (2)
- SDR (146)
- SETI (22)
- Shannon -- Claude (1)
- Short Wave Listening (74)
- Si5351 (85)
- Sicily (3)
- sideband inversion (5)
- Sierra Leone (1)
- Silver -- McMurdo (1)
- Silverman -- Steve (11)
- simulators (1)
- Singapore (3)
- Slovakia (3)
- Smith--Steve (13)
- software (25)
- solar cycle (44)
- Solar power (25)
- solder (9)
- SolderSmoke Podcast (205)
- SolderSmoke Shack South (4)
- SolderSmoke store (2)
- SolderSmoke Videos (2)
- SOTA (11)
- Souleles -- Dean (41)
- South Africa (13)
- South Korea (1)
- Soviet Union (4)
- space program (162)
- Spain (26)
- Sparks -- Ron (2)
- sponsor (2)
- SPRAT (68)
- SSB (199)
- SSDRA (21)
- SST (5)
- SSTV (6)
- static electricity (3)
- stickers (7)
- Stoll -- Cliff (1)
- Sub-Harmonic mixer (1)
- Summers-Hans (43)
- Sun (12)
- Superhet receivers (94)
- surface mount (10)
- Swan 240 (4)
- Sweden (9)
- Switzerland (4)
- Tasmania (7)
- Taylor -- Joe (3)
- Taylor -- Paul (9)
- telescope (2)
- telescopes (29)
- teletype (1)
- Television (3)
- Temperature Compensation (3)
- Terman --- Frederick (1)
- Tesla -- Nikola (3)
- test gear (185)
- Thailand (5)
- The Knack (7)
- Tibet (1)
- Time (1)
- TinySA (12)
- TJ DC RX (44)
- tools (1)
- Toroids (4)
- Trastevere (3)
- TRGHS (1)
- Trivial Electric Motor (2)
- troubleshooting (135)
- tube (3)
- Tubes (210)
- Tubes. tube (1)
- Tuna Tin 2 (25)
- Turkey (12)
- Twain -- Mark (2)
- UAE (2)
- uBITX (50)
- UHF (17)
- UK (227)
- Ukraine (3)
- uSDX (1)
- Van Vark -- Tatjana (1)
- Vatican Radio (1)
- Venezuela (2)
- venus (4)
- VFO (78)
- VHF (20)
- vide (1)
- video (217)
- Vienna Wireless Society (9)
- Vietnam (8)
- VK4KA (1)
- W1PID (2)
- W7ZOI (7)
- WA6ARA (4)
- WA7MLH (9)
- Walford Electronics (5)
- Washington D.C. (5)
- WD-40 (1)
- weather (8)
- web sites (45)
- Weber-Steve (4)
- Weiss--Ade (5)
- Williams -- Jim (3)
- wind power (2)
- wolke -- Alan (40)
- Woodpecker (1)
- woodworking (10)
- workbench (111)
- workshop (26)
- Wozniak -- Steve (9)
- WSPR (75)
- Yates--Alan (8)
Help SolderSmoke -- Use this Paid Ad from Amazon -- Click on Image!
Click on the Amazon image above to buy ANYTHING from Amazon
Help SolderSmoke! Shop E-Bay from this site
Our Sticker (we need a new one!)
Hardware for the Homebrewer
Click on the logo!
Visitors
Join the CBLA Today!
Translate
SolderSmoke -- The Book
Click on the Book Cover!
SolderSmoke - The Book!
"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
SolderLinks
- SolderSmoke's Facebook Page
- Bill's Blog About Politics and Foreign Affairs
- Pete N6QW's site
- SolderSmoke/Gadgeteer Books
- Pete's Old Blog
- N2CQR's Web Site (radios, kites, rockets...)
- All the SolderSmoke Podcast Episodes
- Mike KL7R (SK) Archived Web Site
- SolderSmoke YouTube Video Channel
- Pete's New Blog
- Dean KK4DAS's Blog
- Farhan VU2ESE's Site
SAW Filter -- Lapel pin symbol of the FMLA
Blogs and Websites and Groups
-
December 22, 2024. So how do you turn a Direct Conversion Receiver into a Transceiver? - Friends and colleagues, Bill, N2CQR and Dean, KK4DAS, developed a Direct Conversion Receiver project that was featured in "hackaday" and the subject of a l...
-
-
Cape Lookout Activation: A Family Adventure and Saltwater Experiment - Last Sunday, my family set out on a trip across North Carolina, from the mountains to the coast. Our destination was Beaufort, a charming coastal town I ha...34 minutes ago
-
-
-
Perplexity AI calculating Zo of a two wire transmission line – comparison with measurement – updated - During the process of writing the article Analysis of output matching of a certain 25W 144MHz PA an estimate was made of the characteristic impedance Zo of...13 hours ago
-
Re: Receiver Mica Disease - You might be seeing the effects of bad silver-mica capacitors. Apparently silver can migrate thru the mica insulation forming little fingers (dendrites) wh...1 day ago
-
-
-
WI2XLQ: Brian Justin’s annual longwave broadcast starting Christmas Eve and New Year’s Eve - Many thanks to SWLing Post contributor Brian (WA1ZMS), who writes: What has now become an annual LF listening event, WI2XLQ (an FCC Experimental Callsign) ...2 days ago
-
-
Tech news spot on ABC Radio - Nightlife Tech Guru Peter Marks, a software developer and technology commentator from Access Informatics, joined Philip Clark on Nightlife to discuss the l...
4 days ago -
HRWB 225 - QRP Radio Design with Jonathan KM4CFT - In this episode we meet Jonathan Kayne, KM4CFT, the designer of a very popular new QRP radio called the CFT-1. Jonathan shares his journey from concept ...5 days ago
-
-
QRP HomeBuilder rebrands to Popcorn Electronics - Greetings Friends! Well, it's time to re-imagine QRP HomeBuilder. I'm going back to the beginning and rebranding as Popcorn Electronics. This was the si...
6 days ago -
The George Batterson 1935 QSO Party - *VE3AWA - TPTG 210s* After the most recent running of the *AWA’s Bruce Kelley 1929 QSO Party*, a group of dedicated ‘29 enthusiasts and builders were hopi...
6 days ago -
-
-
6474km TEP contact on 144 MHz from Argentina to a ship off the coast of Florida - 9th Dec 2024 - Over the last few years, I've reported on many *Trans-Equatorial Propagation* (TEP) contacts from South America to the Caribbean on the *144 MHz* band......
1 week ago -
-
Frequency response of the RX-888 SDR at the high and low ends (above 30 MHz and below 1.5 MHz) - *Figure 1:* The RX-888 Mk2. The RX-888 Mk 2 *(hereafter referred to as the RX-888 or '888) *is a versatile device, essentially providing a means by which...
2 weeks ago -
-
WA2JMG - Episode 524 - Charles “Pete” Corp - WA2JMG Charles “Pete” Corp, WA2JMG, operates simple rigs into wire antennas, using low power. His primary operating mo...5 weeks ago
-
-
The November - December 2024 SARC Communicator - *Another BIG issue* The final issue of the year. The November-December Communicator, digital periodical of Surrey Amateur Radio Communications is now avail...1 month ago
-
Hollow-State Design, 3rd Edition - Hollow-State Design, 3rd Edition is available from: Lulu Press: tinyurl.com/hollowstatedesign3 eBay: search for “hollow-state design” Electric Radio bookst...2 months ago
-
I Finally Bought My Dream Airplane - Aviation has been a love of mine since I was a very little person. Living in Nevada, seeing posters and ads for the Reno Air Races, specifically the Texa...2 months ago
-
2000 47pF Caps ... - An unexpectged package arrive in the mail today. Did you ever wonder what 2000 47pF NP0 capacitors look like? Thanks to John, AB2XT I will never run ...
3 months ago -
-
January 13, 2024. Just Technical Stuff Today. - https://n6qw.blogspot.com Our New Home!11 months ago
-
-
New QRP Cluster From OM0ET and OM6APN - By DX EXPLORER DX EXPLORER Paul OM0ET and Peter OM6APN recently launched a new cluster dedicated to QRP operations. Have a look and I hope you will enjoy...1 year ago
-
Daylight Again – An all Analog Radio - What’s all this? In 10 seconds, A high performance, 7MHz, 5 watt SSB rig Draws just 24 mA of current 90 dB dynamic range, 80 dB close-in dynamic range 3D ...2 years ago
-
New post: A “Walkie-Talkie” SSB transceiver for 14MHz or the higher RF bands - To access this article, please click link: A “Walkie-Talkie” SSB transceiver for 14MHz or higher rf bands2 years ago
-
Other Electronic Projects • Re: Can I normalize both Mono Amp Outputs? - radm49 wrote: ↑ Mon Apr 25, 2022 3:56 am qmavam wrote: ↑ Thu Apr 21, 2022 8:57 pm Yes, you can use a wall wart for power, you might need to add a capacit...2 years ago
-
Digi-chirp! Digital synthesis of ‘nostalgic’ CW - 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...3 years ago
-
SMA Torque Wrench for the NanoVNA (uncalibrated) - I have been using SMA connectors on most of my projects, and have occasionaly gotten a slightly different reading than I had expected. Using the NanoVNA, ...
4 years ago -
40m SSB Tramping Rig - Please see my YouTube channel for details of the build. http://www.youtube.com/c/CharlieMorrisZL2CTM *2N3904 Antenna Amplifier (initial)* Voltage gain is ...
5 years ago -
Modifications to the Dayton/FDIM-2019 Antuino - The Dayton Antuino has sub-optimal performance. This is a short note on improving it to an 80 db range of measurements. The trouble with Antuino 2.0 (the o...5 years ago
-
-
The SW200 – A Budget AM Broadcast Processor for LPAM – and Hams Too? - Note that although the audio processor described in this article is intended primarily for Part 15 AM broadcasters, and perhaps also low power licensed AM ...6 years ago
-
Raduino as NBFM TX - Here is a neat, 30 minute hack for your Raduino to turn the Si5351 into a pretty stable, solid NBFM transmitter. The hack is to add a varactor diode in ...
7 years ago -
QRP Labs shop! - [image: Shop] All QRP Labs kits may be ordered online securely at the shop, with PayPal payment. *Click here to visit the shop!* *Click!* *Shop! Order...9 years ago
-
Hans Summers Homebrew Radio, Electronics and Computing - Radio, Electronics and Computing Projects by Hans Summers I make no claims for technical accuracy, good design, or necessarily even originality for the co...15 years ago
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
E. Howard Armstrong on a Czech Stamp
Blog Archive
-
▼
2021
(257)
-
▼
August
(23)
- Kintsugi -- A Japanese Philosophy for the Owners o...
- No More Automatic E-mails from the SolderSmoke Blog
- Adding Automatic Gain Control to the Termination I...
- SolderSmoke Podcast #232 -- Mythbuster, Pete's Tub...
- Making a BIG Transformer from Scratch -- Video
- Video: E. Howard Armstrong and Early Radio
- Mythbuster Video #17 Boxing it Up, Tuning Filte...
- Joe Galeski's 1960 "IMP" 3 -Tube Filter SSB Transm...
- W2EWL's "Cheap and Easy SSB" Rig -- And The LSB/US...
- Time Crystals, and Breadboarding in Cyprus in the ...
- Todd K7TFC on Pessimism, Optimism, and Homebrew Radio
- Sam KD2ENL's Homebrew Integrated Circuit Chips
- KI7NNS's "Pacific 40" Simple SSB Transceiver
- Grayson Evans KJ7UM on the Ham Radio Workbench Pod...
- More Info on Tom's Amazing Junkbox 20 meter Receiv...
- Mythbuster Video #16 -- GLOWING NUMERALS! In Juli...
- Mythbuster Video #15 The Mythbuster Signal As Se...
- Mythbuster Video #14 -- ON THE AIR!
- Mythbuster Video #13 -- RF Power Amplifier, and Re...
- Farhan and the SBITX on Hack-A-Day
- AFTIA! The Audio Frequency Termination Insensitiv...
- Mythbuster Video #12 -- Bandpass Filters
- Mythbuster Video #11 -- Block Diagram and Overview...
-
▼
August
(23)
SolderStats
Radio Inventor Stamps
On Page 39 of the Nov-Dec 2024 SARC newsletter "The Communicator"
Beautiful! Perfect demo of the function and power of simple LC filters to clean up a complex waveform. You can see the rough shape of the 3.6MHz since wave with the 14MHz wave superimposed or modulating it. Takes me back to high school physics, the superposition principle of waves, so simple, waves add, that's it!
ReplyDeleteIve been working on a video on a diplexor experiment, first time I've ever put a spectrum analyser (A moderately poor man's one, RSP1A), on the output of a DBM. It's a mess! The desired IF is nowhere near the strongest spike amongst all the unwanted ones. Then, connect in the diplexor and things improve dramatically. Fun! Complex things become simple with basic rest gear.
Paul VK3HN.