Homebrewing is not for the faint of heart! Accept the challenge! Build stuff!
Our question: Did Doug DeMaw ever build an SSB transceiver? Starting in September 1985 he wrote a five part series on an SSB TRANSMITTER for QST. But he prefaces it by asking, "Why would anyone build an SSB transmitter today?" He says it would be fun "for the experience and understanding it would provide." But not for use, you see... And it is not a transceiver.
Bill's theory about DeMaw, SSB,CW and sideband inversion: He was a CW guy so sideband inversion did not really matter. He could get it wrong and still make it work.
Pete's Bench:
Brilliance and the TR3. https://www.youtube.com/watch?v=2C-eYB8yFzg&t=13s
A tale of woe. Done in by a light bulb.
Thanksgiving dinner and SSB transceivers. https://n6qw.blogspot.com/2024/11/11292024-how-to-homebrew-thanksgiving.html https://www.pastapete.com/
Hybrid plans: https://www.youtube.com/watch?v=zKUjHZMf3Fs&t=5s
Dean's Bench:
Travelogue – Falcon 9 Launch
Building a homebrew T Match tuner for the end-fed long wave – sourcing the parts, winding the coil – taps, testing
VWS Makers Projects
SDR Receiver Project – starting in January
VWS Pico Balloon – Traquito - Traquito - WSPR Pico Balloon
Revisiting the 10M DSB rig
Soldersmoke listener challenge – build a DCR with KK4DAS – overview then one board a week
SHAMELESS COMMERCE DIVISION: Mostly DIY RF. Please subscribe to our YouTube Channel. And use the Amazon link on our blog. Become a Patron via Patreon (on the blog). SolderSmoke is now on Blue Sky and Threads -- follow us or at least like us there. Please turn on automatic downloads on your podcast app -- most podcast apps will only store a few episodes. This will help bump the numbers, which will improve visibility. Please give the show five stars and, if possible, a nice review on your podcast service, That will help with the discovery rate for people looking for new podcasts.
Bill's Bench:
Is "The Ground" a Myth? ARRL VP says Ground is a Myth: https://www.youtube.com/watch?v=KdX-978tvkY. Bill disagrees. Helicopter story. Refrigerator story. Original single wire telegraph system. https://en.wikipedia.org/wiki/Single-wire_earth_return
Front Panel and Freq Counter for the Mythbuster II.
Another Tale of woe: A mysterious audio problem on the 15-10 II rig. Done in by.... Duh! Comparing sideband suppression with Mythbuster I. Differences in Hfe? Notes on Mythbuster II build.
TinySA Ap -- A cure for Fat Finger Syndrome? : http://athome.kaashoek.com/tinySA/Windows/ How to get and load the Ap (you might want to start watching at 1:11) https://www.youtube.com/watch?v=zu4X5dyUlpo&t=2s General info video on the TinySA Ultra: https://www.youtube.com/watch?v=6C24RnYNOWQ&t=1143s
For the DR shack -- I got a Swan SWR-1A on E-Bay.
-- Scott KQ4AOP trying to track down the DeMaw SSB transceiver mystery. On the DC Receiver: This was my first receiver build and, it was great fun. When you finish the build and prove you are able to tune through the band, you are welcomed into the secret society! The build is the initiation.I am happy to print and ship the PTO if needed.
-- Bill WA5DSS has built a High School Direct Conversion Receiver!
-- Grayson KJ7UM liked the 1971 video on old THERMATRON AM radios: https://soldersmoke.blogspot.com/2024/11/basic-radio-circuitry-1971-film.html
-- Chris KD4PBJ sent nice electronic care package.
-- Walter KA4KXX is honored that Dean named his dog for him (Walter was just kidding)
-- Thanks to Bob W8SX for FDIM 2024 interviews.
-- Tony G4WIF insomnia driving him to podcasts. Amazed by quantity of food eaten on Thanksgiving.
-- Nice comment from Trigger about the podcast.
-- Clint says "valves" when he means THERMATRONS. Kindly asks about "Oooo Thats Awesome"
-- Eric 4Z1UG faced with a new challenge. Get well soon OM.
-- Sam WN5C and his Chat GPT AI Elmer.
-- Paul VK3HN on using AI for electronic design. I dunno... Apocalypse Now in the DR?
-- Tommy SA2CLC FB old military gear on QRZ site. Helps with HP8640B repair.
-- Mike WN2A nice comments on Chappy Happy's FB Tezukuri DC RX https://soldersmoke.blogspot.com/2024/11/tezukuri-and-chappy-happy-amazing.html
-- Allison KB1GMX. Good info on ground truth.
-- Phil W1PJE Had to throw out 15 test leads. Fake wire!
--Todd K7TFC Thoughtful comments on AI and ChatGPT, Help with TinySA Ap
-- Steve KW4H Boatanchor guy. Likes that we often scratch our heads trying to understand.
-- Nick M0NTV built a 40 meter DC receiver: https://soldersmoke.blogspot.com/2024/12/a-40-meter-direct-conversion-receiver.html
-- Dave AA0KU asks about CCI amp (AN762) Also woking on Drakes.
-- Jack (Dhaka Jack!) F4WEF/AI4SV Good thoughts on how to bolster SolderSmoke's ratings.
--Tobias thinks the decline IS ALL HIS FAULT!
-- Tony VE7JUL building a TJ DC RX. Go Canada! Dean says: 3D print PTO former at 110%
-- Jim KI4THC getting his uBITX on the air.
10S November 23, 2024 1517Z SV1AER Kostas in Athens. Said a very sincere “Oh my goodness! Congratulations! That is not a very common thing!” when I told him rig was homebrewed. Nice fellow. Great response.
November 13, 2024
SolderSmoke Podcast #254 is available:
Audio Version here: http://soldersmoke.com/soldersmoke254.mp3
Video Version here: https://www.youtube.com/watch?v=ZiZwWY1CQgI
Opening: Disturbing news from Australia! VK5RS reports that his Hex beam was EATEN by Cockatoos! So stop whining about your HOA problems, OK? It could be much worse!
FAKE WIRES FROM CHINA! Oh no! Even the wires? There is a good video from Mattias. I have it on the SolderSmoke blog. https://soldersmoke.blogspot.com/2024/11/clip-leads-made-with-fake-wire-buy-good.html Important to note that Parts Candy doen't have this problem. Buy your test clip leads from our sponsor, Parts Candy. Link in the column on the right or go to partscandy (that's one word).com
Bill's appearance on the Ham Radio Workbench. (Bill made some overly harsh comments about radio rejuvenation, and was trying to make amends.) But now we throw down the gauntlet. WE CHALLENGE the HRWB guys to build -- to homebrew - our TJ DC RX. They will experience JOO, JVO and the elite status that comes with having built their own ham radio receiver. And if they go on to build a 10 minute transmitter, they can use it for CW contacts. Like on POTA (Thomas!)
Anniversary approaching: In August 2025 we will mark 20 years of the SolderSmoke podcast. And we have already passed TEN YEARS OF JULIANISMO! Pete joined the podcast on May 26, 2013. Thanks Pete!
Question for the group: Which SSB transceivers did Doug DeMaw build?
Pete's Bench: Thermatron-Transistor Hybrid Goodness. https://n6qw.blogspot.com/2024/10/blog-post_20.html
Dean's Bench: The new Hex Beam (watch out for Cockatoos!) Now that Dean and I both have Hex Beams, we plan on pointing them at Southern California in an effort to talk to an elusive RADIO GENIUS. Stay tuned!
SHAMELESS COMMERCE: Please link to our blog and podcast! Please become a Patreon supporter (I have been posting special content there). Be sure to make use of the great boards, parts and kits available at Mostly DIY RF. Still use the Amazon link on the SolderSmoke blog page.
Bill's Bench: The new Mythbuster II (20 meters only). Built in about 3 weeks. On-the-air, while still on the bench! Worked Euope and South Africa QRP. https://www.youtube.com/watch?v=6o9QerQ7jzg
Getting another CCI amp for the Dominican Republic.
MAILBAG:
-- Paul VK3HN, talks about the nice sound of the Mythbuster II's receiver, and a new QRP rig from Dave Benson K1SWL.
-- Rick N3FJZ sent some very kind words in support of the SolderSmoke podcast. Thanks Rick.
-- Chris KD4PBJ sent us a very nice message. Thanks Chris.
-- Kevin from Belgium sent a nice blog post in support of SolderSmoke.
-- John WB4BTL spotted his old call (from 1974) in my Novice Log.
-- Dave KD2E spotted his Novice call in my Novice log: WN2TBB. He also saw a good friend WN2EHE.
-- Mehmet who has the awesome and useful WEBSDR of NA5B helped me with a Facebook problem. Thanks Mehmet!
-- Mike WN2A asked about the Yaesu FT-101 9 MHz VFOs.
-- Phil W1PJE (from MIT!) writes about old broadcast radio shows. And some really nice words of encouragement.
-- Grayson KJ7UM sent kind words of encouragement, and great background on hybrid rigs.
-- Peter VK3TPM writes about the decline of blogging, but notes that blogs are useful repositories.
-- Todd K7TFC sent me some additional Mostly DIY RF boards. Thanks Todd!
-- Ed DD5LP/G8GLM Kind words on SolderSmoke, nice info on the G-QRP 50th edition.
-- Bill AH6FC Encouraging words and good info on solar. Mahalo Bill!
-- Michael AG5VG Building LC VFOs for 7 MHz. FB OM!
-- Bob K7ZB An EE who likes the treatment of mixers in the SolderSmoke book.
https://deepmind.google/discover/blog/pushing-the-frontiers-of-audio-generation/
And here are our first two experimental uses of this AI technology:
https://soldersmoke.blogspot.com/2024/09/a-new-experimental-podcast-about.html
https://soldersmoke.blogspot.com/2024/09/here-is-another-short-podcast-about.html
http://soldersmoke.com/soldersmoke253.mp3
October 16, 2024
Sponsor! Parts Candy is back! Handmade in Chicago! Standard test leads, Hook clips, alligator clips in 12" and 32" and multimeter leads
Travelouge/Intro
Bill's trip to NYC -- The Empire State Building
Dean goes to the Bay area.
Harry Caul, Marty Klein W3VCG , "The Conversation" and THE KNACK.https://soldersmoke.blogspot.com/2024/08/harry-caul-had-knack-movie-review.html
Joe Piscopo in Bell System video! https://soldersmoke.blogspot.com/2024/08/soldersmoke-quiz-question-who-is-actor.html
Bill's Bench
Bill's report from SolderSmoke Shack South: The tropics: What this means. Guapo wouldn't go out when the sun was overhead.
Skies not great for astronomy now. But we see a lot of satellites, and meteors.
Antenna developments: 1/4 vertical on a fishing pole.
Lightning suppression coming for the building. Lightning suppressors. Got 2. Good video from the IMSAI guy: https://www.youtube.com/watch?v=7EyABPuNDMA Argon gas suppresion tubes.Need to crimp!
Hurricane prevention. Metal storm curtains.
Thinking of solar panels. 12 panels, 5 kW system. Probably without batteries. What do you think?
A golf cart.
New PC. BeeLink. Very tiny! (palm of your hand) 24 inch screen. Works well https://www.amazon.com/dp/B0BVFKN7ZL?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
A very satisfying fix on the 15/10 rig -- loose connection to RF amp. The highly suspect Ramsey Kit Amp was NOT the culprit! Got to use the new Rigol DS-1102. A fun fix. Will build a second CCI amp.
Digital Selective Calling -- listening to ships and shore stations on HF. https://soldersmoke.blogspot.com/2024/10/monitoring-maritime-radio-messages-with.html
SHAMELESS COMMERCE: Our blogs and the podcast are in danger! Pete is already on a permanent blog hiatus. I have seen a big decline in readership. Frankly, if no one is reading or listening, we just may decide not to do it anymore. We don't want to do this. So please, link to the blogs. Talk up the blog and podcast on your own blogs and social media.
Parts Candy Test Leads are back as our sponsor. Pete has them. Dean has them, I have them in two different countries! DON'T SCRIMP WITH A CRIMP!
SPRAT Summer 2O24 Special EXTRA 50th Anniversary issue! https://www.gqrp.com/sales.htm
Dean's Bench
First CW contact: With KK4DAS on his HB sBITX and Alan W2AEW POTA. TRGHS.
Dean fixes the sBITX problems. Again. SUB-THRESHOLD CONDUCTION! Lots of patience and stick-to-it-ivness. LPF leakage! https://kk4das.blogspot.com/2024/08/homebrew-sbitx-lpf-leak-stopped.html
IMD IMD IMD and the Tiny SA Ultra https://soldersmoke.blogspot.com/2024/09/sherwood-its-time-to-clean-up-our.html
AI AI AI -- Experimental AI Podcasts about SolderSmoke (no kidding -- (NOT April 1) Where they came from https://soldersmoke.blogspot.com/2024/09/where-ai-podcasts-came-from.html
AI Podcast #2 https://soldersmoke.blogspot.com/2024/09/here-is-another-short-podcast-about.html
AI Podcast #1 https://soldersmoke.blogspot.com/2024/09/a-new-experimental-podcast-about.html
Pete's Bench
An all PNP rig -- A notional look, https://n6qw.blogspot.com/2024/08/august-30-2024-pnp-20m-ssb-transceiver.html
Videos on old Boatanchors. https://www.youtube.com/watch?v=mnboJ75NCmY&t=1s
MAILBAG:
Lex PH2LB making some new stickers. Look out San Francisco!
Rogier PA1ZZ sending lots of good ideas and links.
Todd K7TFC great idea on SS readersip decline
Todd VE7BPO aka Vasily -- great info on how to stabilize LC oscillators. https://soldersmoke.blogspot.com/2024/09/qrp-homebuilder-shows-us-how-to-build.html
Eric 4Z1UG Welcome words of encouragement on the blog and podcast
Dave W2DAB says that AI just can't replace the Tappit Brothers of ham radio. Now the Tappit Triplets.
Michael AA1TJ Thoughtfully skeptical about AI.
Grayson K7JUM on the cleanliness of the 32S-3. Also amazing video on Thermatron MMM.
Mike WN2A working on DC receivers and hum!
Floran OE7FTI building Farhan's JBOT amp!
Mike Murphy WU2D building 1930 replica rigs using a Frank Jones circuit
Dave K8WPE always great to hear from such a strong SolderSmoke supporter.
Walter KA4KXX Great ideas from the Wizard of Orlando.
Paul G0OER -- Reacting to the 1970s Ham Radio video. Didn't remember being so cool.
Thomas K4SWL -- Struggling with the hurricane in NC. Hang in there OM.
Nick M0NTZ building another Direct Conversion receiver -- with videos about it.
Michael AG5VG building a Mythbustrer-style 20 meter rig. FT-101 VFO. FB
Tony G4WIF -- Readership problem advice
John AB2XT sent us 6000 47 pf NP0 capacitors. So we are now good for caps! Thanks John.
Paul VK3HN Was suitably impresses by the AI podcasts we put on the blog. Thanks Paul.
SolderSmoke #253 is available in video form. See above or:
https://www.youtube.com/watch?v=DQBojTLL7VY
The audio version is available in the post immediately above this one, here:
https://soldersmoke.blogspot.com/2024/10/soldersmoke-podcast-253-audio-version.html
Click here for the second "About SolderSmoke" podcast.
http://www.soldersmoke.com/About SolderSmoke 2.mp3
This one looks not at the SolderSmoke Daily News blog, but instead at the SolderSmoke podcast itself.
I was delighted to see the inclusion of Pete, Dean, Farhan and Mike Rainey! This was really great.
Look, it is not perfect. There are errors. But probably about the same number of errors that you would get from real, human hosts, right? Voltaire told us not to let the perfect be the enemy of the good. And I find this to be amazingly good. Look, it is so good that it is kind of scary, right?
Before you get too critical realize how this has been done: I did nothing more than load the SolderSmoke Podcast Archive website into GPT-like model. Then I asked it to produce a deep dive podcast. That's it. About 5 clicks. It developed the podcast in about 3 minutes. I did the same thing yesterday but with the SolderSmoke blog. And this is only the beginning.
Michael AG5VG finished this receiver last weekend. He hopes to build a CW transmitter using an output of the Si5351. Obviously I defer to Pete on that one. Good going Michael. I think it sounds great and looks even better.
-- This is the first podcast from SolderSmoke Shack South: Eastern tip of Island of Hispaniola. Cap Cana, DR, 70 feet up, 1 mile from Mona Channel. Seventh floor shack with view of the ocean. Antennas: Dipoles for now, maybe Moxons or Hex later. STARLINK
- The San Francisco case against me. One guy thinks we DESERVE prosecution! Get off of my lawn!
But one fellow wrote letter to the mayor asking for leniency. Proposes "Bill Meara Day in SF." FB! I fell victim myself this year: Mike WU2D got me with WA1HLR on SSB video. https://www.youtube.com/watch?v=NLvCNJ_OnEc
-- Dean: Fighting a spur in the sBITX. Filters?
-- Dean: Exploring Class A, Class AB and the RD06HHF1
-- Dean: Extensive work on getting flat gain from FETs up through 10 meters.
-hh- Dean and Bill: OIP3 measurement and setting the bias on an RD06HHF1
-- Pete: Discovers for all of us "RF Man" In spite of all the CB stuff, he is the THE MAN! On YouTube:https://www.youtube.com/@rfmanchannel6915
-- Pete fixes Dean's relay chattering problem: SUBTHRESHOLD CONDUCTION! Yikes!
-- Pete's refurb and rejuvenation of the Drake Twins,
-- MXM news. New docs, and ads from WD5L. All on the blog. 7030 crystals. Why MXM? Chuck Adam's mods, Joh DL6ID's questions about VFO. Yes! VFO from RX. Was Bruce Williams an early Swan Designer?
-- Weird paradox with 25 MHz filter: Low profile xtals have higher Q, but produce more rounded passbands. Why? I note that Minima's 20 MHz filter also had curved passband.
-- Allison's wisdom on filters at higher frequencies. The importance of physical layout. Diodes in the dark! It is indeed more difficult up there. But don't let the perfct be the enemy of the good!
-- Is Bill the only one to ever build a 10-15 Dual Bander using a 25 MHz crystal filter. Why? Farhan's Minima has a 20 MHz 6 pole QER crystal filter. And it too had a rounded passband. But it tooc WORKED.
-- Did my receiver sound tinny due to rising frequency response of uBITX Rev 4 amp? Yes! So I put in a TJ DC RX Af amp.
-- Bill BLOWS UP a Tiny SA Ultra. Ooops. But quickly got a new one from R&L Electronics. Very, very useful. I knew 25 MHz IF rigs were inferior, but by how much? How much was the carrier suppressed? Which filters worked better? What was the opposite sideband rejection. TinySA permitted measurement and comparison.
-- Bill quit 15 meter SSB (for a moment) and went to the 1.22 nanometer band with a Wilson Clound Chamber. Videos on the blog.
SHAMELESS COMMERCE: Thanks to new Patreon sponsors. I am sending some additional video content to the sponsors.
MAILBAGg
-- Thanks to Bob Crane W8SX for FDIM interviews. I will get them out!
--Wes -- W7ZOI has a new TIA amp with variable gain on his web site: https://w7zoi.net/
-- Geoff N6GWB's Rad Receiver https://soldersmoke.blogspot.com/2024/04/the-rad-receiver-from-n6gwb.html
-- Dave K1KA sent Ensemble RTX SDR parts. Thanks Dave.
-- Chuck Adams AA7FO provided good background on my MXM rig, including the meaning of MXM (1990) . Again, great to hear from Chuck, a true homebrew hero.
-- Gerardo HI8P collecting info on the other HI8P, my friend Pericles (SK)
-- Alvin N5VZH picked up a Silktronix CB VFO. What to do?
-- Jorgen SM4WWG listening from Sweden, and making PCBs. FB!
-- Mike WN2A Wondered about opposite sideband rejection of MXM. Not great.
-- George WB5OYP loaned me a book from Elmer Bucher. THE Elmer? https://k9zw.wordpress.com/2020/01/24/on-the-origins-of-elmer-a-reasonable-theory/
-- Wes W7ZOI, Farhan VU2ESE -- Thanks for help on filter issue. Thanks too to Alan W2AEW and G3UUR
-- Josh G3MOT -- Nice message of support in our "struggle" with SF authorities. Going portable to Vancouver island in August. VE7/G3MOT
-- Paul VK3HN -- Antipodean solidarity. Thanks Paul.
-- Rogier PA1ZZ -- great input and help. Thanks
-- Tony G4WIF reminded me of G3ROO's parasets. See Blog
-- Pavel CO7WT His experiences (building, freezing, heating) the VFO in the Jaguey DSB rig.
-- Grayson KJ7UM Sent latest ER with his Collins 51S-1 story. Thanks Grayson.
-- Allison KB1GMX Commiserating on higher freq crystal filters. Thanks Allison
-- Wes W4JYK Notes that Dewey, Cheatam and Howe are based in SF. Can they help with sticky sticker problem?
https://www.qsotoday.com/podcasts/KI4POV
Will has appeared on this blog and podcast before:
https://soldersmoke.blogspot.com/search?q=KI4POV
There were a lot points in Eric's interview with Will that resonated with me:
-- Will told about how his very understanding and perceptive wife KNOWS when a homebrew project is not going well. Yea, we have the same situation here!
-- Will mentions the wisdom of Wes Hayward, Doug Demaw, and Pete Juliano.
-- Eric mentioned that there is a bit of his own blood in most of his homebrew projects. One slip of he screwdriver is often enough. My projects also often have a bit of my A+ in them. This adds soul to the new machine.
-- Will spoke of S-38s and HW-8s. I have both these devices here with me in the Dominican Republic. I have used both of them here.
-- Will mentioned the magic that comes when you listen with a receiver you built yourself. Yes.
-- NanoVNA. Yes, very useful.
Lots more great stuff in this interview. Thanks Eric and thanks Will.
Version II of the 15-10 rig is mostly done. I did a lot of work on the AF amp, balanced modulator, Mic amp, carrier oscillator, and filter. Dean KK4DAS and I continue to test and measure the RF power amplifier. I describe the brutally simple, non-sequenced T/R switching arrangement, and the spread-out open air construction style.
Version I of this rig is on its way to the Dominican Republic. Version II will stay in Virginia. I have already worked a lot of SSB DX with this rig, including, Thailand, Taiwan, China, India, Kenya, Australia, American Samoa, and others.Wow, some really wonderful work is taking place in Nate KA1MUQ's basement in California.
-- I really like the pill bottle coil forms. I wonder if Nate faced suspicion (and possible arrest) in the pharmacy when he asked for the pill bottles. (I got some suspicious looks when I went I asked for empty pill bottles while building my thermatron Mate for the Mighty Midget receiver back in 1998.)
-- The variable capacitors are also quite cool, as is the big rotary switch. Is that for band switching?
-- Oh man, all on a plywood board. Frank Jones would approve!
-- Indeed Nate, that beautiful receiver NEEDS an analog VFO. And we need to hear it inhaling phone sigs, not that FT8 stuff.
-- Please keep us posted on your progress. And of course, one hand behind your back OM. Lots of high voltage on those thermatrons.
Thanks Nate!
http://soldersmoke.com/soldersmoke250.mp3
VIDEO VERSION: (1707) SolderSmoke Podcast #250 -- With Pete N6QW, Dean KK4DAS, and Bill N2CQR - YouTube
Intro: Welcome to Dean KK4DAS. For 2024 Pete and I hope to jazz things up a bit by bringing in fellow homebrewers to talk about their projects. Dean is our first victim. Welcome Dean.
Some good news: Several new homebrew receivers are inhaling: Armand WA1UQO in Richmond has an amazing looking regen. Scott KQ4AOP in Tennessee got his DC RX working. Mike AG5VG in Texas has been homebrewing BITX 20s and BITX 40s. All are on the blog.
Pete's report:
-- Recent blog entries on filters, SSB rig architecture, and of course digital VFOs.
-- Phasing measurements, quadrature, and the Seeed Xiao RP2040
-- Error in QST article on early SSB transceiver. ANOTHER ERROR!
--LC VFO on blog! FB Pete!
Dean's report:
-- Tales of woe on the homebrew sBITX
-- Help from Farhan.
-- Ground Bounce. FFT Hallucinations. Wisdom files.
SHAMELESS COMMERCE DIVISION:
-- Whenever you are tempted to buy something from AMAZON, just start at the Amazon symbol on the right side of the page. We get a cut from Bezos, and it doesn't cost you anything.
-- You can try to do the same thing with E-bay. We are finding a lot of great parts there.
-- If you see a SolderSmoke post on Facebook, please Like and forward.
-- Become a patron! Go to the Patreon page. We put the money to good SolderSmoke use.
-- Visit Mostly DIY RF and buy a PSSST kit!
Bill's bench:
-- Building yet another BITX dual bander. 15-10 again. Tried to use a 25 MHz filter left over from the earlier project, but I had to build another. Built a new VFO using the variable cap and anti-backlash gear recommended by Pete. Was a bit tough to get the receiver sounding good. Had a diode ring as the second mixer, but went back to a singly balanced mixer.
-- 10 meter AM -- Thanks to Jerry Coffman K5JC for mod.
Other topics:
--Counterfeit chips. Why?
MAILBAG:
Wes W7ZOI
Jim Cook W8NSA Transoceanic BFO
Grayson KJ7UM -- Vintage Computer Museum
Chuck Adams --Glad to hear that Chuck is doing well.
Frank Harris K0IYE -- NO CHIPS!!!!
ED DD5LP Antenna software
Eldon KC5U 10 AM We made a contact
Joh DL6ID 10 AM
Phil W1PJE of MIT 10AM Where is L5?
Bob WP4BQV now in UK
Dino Papas KL0S in Wilmington Reverse Polarity protection.
AA7EE Dave Richards Liked Armand's receiver
Rogier PA1ZZ
Jonathan-san W0XO Listened to my ET-2 CW Whoop,whoop
Nick M0NTV Great videos from Nick the Vic
Will KI4POV Working on his own SSB rigs.
John West -- Who is the South American ham who made his capacitors and heat sinks?
Ed KC8SBV Working on DC receiver, experimenting with FETs
Mike WN2A great contributions. Si5351 sole source danger!
Nick N3FJZ -- watch out for dead bands when testing receivers!
Don KM4UDX encouragement from new Prez of VWS
Dave K8WPE Likes QF1 Cap backlash. Says I'm getting soft!
Dave WA1LBP My fellow Hambassador, from Okinawa USMC Sergeant with a workshop.
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