Showing posts with label Evans-- Grayson. Show all posts
Showing posts with label Evans-- Grayson. Show all posts
Tuesday, April 28, 2026

Homebrew Cylindrical Variable Capacitors: What the Steering Wheels are Controlling in Danny's Regen Receiver

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Grayson KJ7UM asked a very good question about Danny ON1MWS's regen receiver :  What were those two very cool "steering wheels...
Monday, February 23, 2026

SolderSmoke Podcast 263: DR-PR, UM, DCRX, SKN, Design, PSSST, W7ZOI, FT-101, HW32A, VK, HST, AMP, MAILBAG

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Pete Juliano N6QW February 23, 2026 SolderSmoke Podcast #263 is available for download:  Audio:   http://soldersmoke.com/soldersmoke263.mp3 ...
4 comments:
Thursday, November 13, 2025

SolderSmoke Podcast 262: Hybrid Wireless, 100 Watt Amplifier, Antipode VK6, Tropo DR to PR?, Mixers, MAILBAG

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SolderSmoke Podcast #262 is available:  Audio only: http://soldersmoke.com/soldersmoke262.mp3 Video:   https://www.youtube.com/watch?v=QSUyE...
3 comments:
Thursday, August 7, 2025

SolderSmoke Podcast 261: Travel, AI-Apocalypse, ARRL Award, Amplifiers (with Claude) , Transcoms, Smoke released in DR, QRP, CW, MAILBAG

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SolderSmoke Podcast #261 is available for download:  Audio:  http://soldersmoke.com/soldersmoke261.mp3 Video:   https://www.youtube.com/watc...
5 comments:
Thursday, May 29, 2025

SolderSmoke Podcast #260 FDIM, Hollow State Design, Pete's Bench and the Shelf of Shame, Direct Conversion Project News, How Best to Preserve this Blog?, Dean's Bench and the Desk of Despair, Bill's Bench and the Garage of Grief, MAILBAG

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SolderSmoke Podcast #260 is available:  Audio version:  http://soldersmoke.com/soldersmoke260.mp3 Video version:  https://www.youtube.com/w...
6 comments:
Friday, May 23, 2025

G0UPL at Dayton: SSB for the QMX, and Thoughts on Homebrewing

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  Click on the diagram for a better view. Listen to the interview here:  http://soldersmoke.com/G0UPL at Dayton 2025.mp3 I think this is wha...
4 comments:
Wednesday, May 21, 2025

Grayson Evans KJ7UM Interview at Four Days in May at the Dayton Hamvention 2025

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  LISTEN TO THE INTERVIEW HERE:  http://soldersmoke.com/KJ7UM at Dayton 2025.mp3 Grayson said quite a lot in this short 4 minute interview: ...
Monday, December 9, 2024

Listening to 40 meters on the DC Receiver -- And I Heard a Distinguished Homebrewer!

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I made the video above to show postential builders how useful our Direct Conversion receiver really is.   Late in the video (starting at 11:...
2 comments:
Friday, November 8, 2024

Using a Photomultiplier THERMATRON to Detect Single Photons

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I've been a fan of Jeroen's YouTube channel for a while now.  He has a very nice approach, combining theoretical knowlege with pract...
Thursday, September 5, 2024

Excellent New Video from Grayson KJ7UM on his Thermatron version of the Michigan Mighty Mite

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Here is a really wonderful video from Grayson Evans, KJ7UM, author of Hollow-State Design for the Radio Amateur.   I really loved this video...
1 comment:
Monday, February 19, 2024

Grayson Evans KJ7UM Video on Homebrewing with Thermatrons

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Grayson Evans KJ7UM is the author of Hollow-State Design for the Radio Amateur, a wonderful book about using Thermatrons (aka tubes, or val...
2 comments:
Saturday, February 17, 2024

Nate KA1MUQ's Amazing Thermatron Receiver

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https://natesbasement123.blogspot.com/2024/02/thank-you-bill-dean-grayson-pete-and.html Wow, some really wonderful work is taking place in N...
1 comment:
Friday, November 10, 2023

SolderSmoke Podcast #249 -- Travel, Pete's 6BA6 rig, Books!, VFOs, SDR, Computers, Spectrum Analysers, Transistor Man! MAILBAG

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New VFO for 15-10 Transceiver Schematic below SolderSmoke Podcast #249 is available:  http://soldersmoke.com/soldersmoke249.mp3 There is als...
9 comments:
Sunday, June 4, 2023

Can you ID this Receiver? Grayson Finds a Homebrew Receiver in Germany. From the GDR. Circuit? Schematic? Thermatrons?

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  Grayson Evans KJ7UM (the author of  Hollow State Design ) was recently in Germany where he spotted this museum display of a homebrew recei...
2 comments:
Sunday, August 28, 2022

Building a Solid-State "Magic Eye" and Fitting it in the Old Tube's Glass Envelope

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I was feeling kind of bad about my solid-state conversion thoughts.  I had gone so far as thinking about putting an FET and some resistors i...
Saturday, August 20, 2022

TRIGGER WARNING: Solid-Stating Old Tube (Thermatron) Gear (Including -- GASP -- R-390As)

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Look at that.  Well, maybe some of you shouldn't. (I'm thinking of you Grayson.)  I found the Charles Smith YouTube channel while in...
7 comments: