Showing posts with label Regens. Show all posts
Showing posts with label Regens. Show all posts
Tuesday, July 28, 2026

Hidehiko JA9MAT's Self-Quenching Super-Regenerative Receiver from Japan -- AI Gets It Wrong!

›
Updated image to show quenching Hidehiko reports that in Japan, this is called a "Self Quenching Circuit" and that it is popular w...
3 comments:
Monday, July 27, 2026

Understanding Super Regeneration (Good luck!)

›
Edwin Armstrong presenting the superregenerative receiver at the June 28, 1922 meeting of the Radio Club of America in Havemeyer Hall, Colum...
4 comments:
Tuesday, April 28, 2026

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

›
Grayson KJ7UM asked a very good question about Danny ON1MWS's regen receiver :  What were those two very cool "steering wheels...
Thursday, April 9, 2026

ANOTHER AMAZING Homebrew Station -- This one from Belgium -- ON1MWS

›
  Those large "steering wheels" on the regen rig caught my attention, and I'm glad they did, because they led me to the sites ...
7 comments:
Wednesday, December 24, 2025

A VERY Interesting Old "Steam Punk" Homebrew Thermatron Rig -- Can You Suggest A Home for this Rig? (Video)

›
Oh man.  They got me at the breadboard, but there was so much more:   -- A mercury switch --  A homebrew variometer -- A reading lamp -- A s...
1 comment:
Thursday, October 24, 2024

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

›
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:
Friday, October 18, 2024

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

›
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:
Wednesday, May 29, 2024

2014 "Off the Shelf" Regen Comes Off the Shelf (Two Videos)

›
Walter KA4KXX spotted an error in the schematic of my 2014 "Off the Shelf" regen receiver: The source resistor on the MPF-102 sho...
1 comment:
Saturday, February 3, 2024

Armand's Receiver -- A Beautiful Regen from WA1UQO

›
Armand writes: The video above shows a quick pass up 40M. The radio sounds better than the video would have you believe (better than I expe...
3 comments:
Wednesday, November 15, 2023

Whole Earth Catalog Part II: More on SWL (and a Hippy One-Tube Receiver)

›
Click on image for a better view Lee McKusick was correct about many things, but of course we were a bit disappointed by his focus on store ...
5 comments:
Sunday, June 4, 2023

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

›
  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, April 23, 2023

Helge LA6NCA's Altoids Tin Receiver

›
Here's another great video from Helge LA6NCA.  This is a follow-up to his Altoids Spy Transmitter project.   Really well done.   Hack-A-...
8 comments:
Wednesday, March 29, 2023

The Awesome Homebrew of Will KI4POV

›
  Will's homebrew station is really something.  The rig (it truly qualifies for this term of praise) is amazing all by itself  (see belo...
11 comments:
Tuesday, March 15, 2022

VK2BLQ's Two-Tube Regen with a SolderSmoke Dial

›
  Thanks to Peter Marks VK3TPM ("a bloke with too many hobbies") for alerting us to this magnificent homebrew receiver with the es...
2 comments:
Wednesday, October 20, 2021

Super-Regeneration is Super-Strange

›
Farhan VU2ESE is largely responsible for this.  He has recently been talking about VHF.  (More about this in due course.).  This started me ...
7 comments: