Showing posts with label Tubes. Show all posts
Showing posts with label Tubes. Show all posts
Friday, December 13, 2024

SolderSmoke Podcast #255 -- Accept the HB Challenge!, DeMaw SSB, Brilliant TR-3, Tube Talk, Ground Truth, Tales of Woe, SDR RX, Pico Balloons, MAILBAG

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Mythbuster II -- 20 meters only SolderSmoke Podcast #255 is avalable:  Audio:       http://soldersmoke.com/soldersmoke255.mp3 Video:        ...
8 comments:
Wednesday, December 11, 2024

Mike WU2D's Video on the SimpleX Super Receiver -- Part II

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  Another FB video from Mike WU2D.    But you know,  I too find myself kind of opposed to front panel on-off switches.  I power my rigs with...
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:
Monday, November 25, 2024

Pete N6QW Has Hybrid Rig On-The-Air

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  A thing of beauty on a wooden board.  Pete's post:   https://n6qw.blogspot.com/2024/11/11252024-1st-dx-with-40m-hybrid-rig.html "...
3 comments:
Thursday, November 21, 2024

Basic Radio Circuitry -- a 1971 film

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This 1971 training film is pretty good.  I like how they break the RF circuitry into just four components, then describe the AM receiver sta...
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

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, October 24, 2024

Mike WU2D Does a CCC Camp POTA with 1930's Gear

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FB Mike.  CW without sidetone is not for the faint of heart.   Walter KA4KXX saw Mike on the Reverse Beacon Network.  Mike's QSO with KN...
1 comment:
Tuesday, October 22, 2024

KA1MUQ's Amazing Homebrew Hybrid Rig

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  Nate KA1MUQ is still working on this rig and so has not yet produced any detailed schematics, but he sent this to us to show that true hom...
3 comments:
Friday, October 18, 2024

Mike WU2D POTA CCC Camp Activation (21 October 2024) with 1930s-era Station -- See If You Can Contact Mike!

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Frank Jones lives!  See if you can work Mike on Monday.  Let us know if you do!  -------------------------------- Bill,   I’m scheduled to t...
2 comments:
Tuesday, October 8, 2024

The Transistor that Changed the World -- the MOSFET

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Another great video from Asianometry.   My only quibble is that it kind of left unclear the differences between JFETs and MOSFETs.  After al...
2 comments:
Monday, September 30, 2024

Fernando's Rigs -- Vintage Ham Radio Receivers

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Thanks to Rogier PA1ZZ for sending me this YouTube link.  It is a truly wonderful channel from Spain. Not only the Collins Gold Dust Twins, ...
4 comments:
Friday, September 6, 2024

Ham Radio in the 1970s (and earlier, with some cool Jazz). What favorite rigs do you see?

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Rogier PA1ZZ sent me this today.  I think I may have seen pieces of it before, but this restoration  is really nice.  But ham radio seems to...
2 comments:
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:
Sunday, August 25, 2024

"Matter Waves" -- A 1961 Bell Labs Film

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I continue to mine the AT&T video archive .  Here's a really wonderful 1961 film showing how particles really are waves also.   The ...
5 comments:
Tuesday, August 20, 2024

"The Far Sound" -- Bell System Video from 1961 -- Good Radio History (video)

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This is a really OLD video, but there is a lot of great material here:  -- Tubes.  (Valves or Thermatrons) -- Coax.   -- Frequency Division ...
4 comments:
Monday, May 13, 2024

Ragnar LA1UH's Wonderful Museums in Norway

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Here are two more great museum visits by Helge LA6NCA.  In these two he visits Ragnar LA1UH.   Ragnar has a lot of maritime experienc...
Sunday, April 28, 2024

A Soviet Tube in Cuba: The "Little Spider"

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I hope readers have picked up on the discussion of the Islander DSB rig out of Cuba. We had a bit of a breakthrough on this recently. I'...
3 comments:
Friday, April 26, 2024

Re-building the Islander DSB/CW Tube Rig in Cuba

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The VFO Board The "motherboard" for an Islander Islander boards recently obtained in Cuba by CO7WT Pavel CO7WT is making great pro...
Wednesday, April 3, 2024

Ian Keyser G3ROO and Spy Radios

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Above is a recent ICQ podcast interview with Ian.  Here is a slightly older interview with Ian: https://www.itv.com/news/meridian/2018-10-1...