SolderSmoke Daily News

Serving the worldwide community of radio-electronic homebrewers. Providing blog support to the SolderSmoke podcast: http://soldersmoke.com

Friday, December 31, 2021

Troubleshooting Apollo: 23 MHz Crystals in a NASA Ground Receiver

More amazing Apollo stuff from CuriousMarc. Here we see them struggling to find the proper frequency for one of the oscillators in a dual c...

Thursday, December 30, 2021

McCoy SSB Crystal Filters (1963) -- But Apparently NOT the Real (Lew) McCoy

Last month we were talking about this company. Someone thought it was run by Lew McCoy of ARRL Homebrew fame, but it now appears that ou...

Wednesday, December 29, 2021

My Kind of Chip: A Homebrew Discrete 555 Timer Built on Wooden Boards (video)

This is really beautiful. Radraksha Vegad (Pargrahi) from India built a discrete component version of the venerable 555 timer chip. He buil...

Tuesday, December 28, 2021

How to Fix the Spur Problem in my 17 Meter SSB Transmitter?

I built the transmitter almost 20 years ago. It is in the larger box, which originally housed a Heathkit DX-40. There is a lot of soul i...

Monday, December 27, 2021

A Christmas Story: Mike AA1TJ Builds Receiver for 486 kHz, Listens to Fessenden Commemoration (Audio)

Mike's 486 kHz receiver As if being able to get home on Christmas Eve 2021 and then catching the Webb Telescope launch was not enough, S...

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