SolderSmoke Daily News -- Ham Radio Blog

Armed now with a NanoVNA, I took a look at the passband of the 5 MHz filter in my Barebones Superhet (BBRX)  W4OP built it on a Circuit Boar...

  I think the key to understanding the Gilbert Cell Double Balanced mixer is to separate out the three tasks that this device completes, and...

  My old friend Mike EI0CL used to remind me that hams in Ireland are granted not just an amateur radio license, but an amateur radio exper...

Rarely if ever will we come across a high quality NETFLIX series built around a shortwave broadcast transmitter.  But that is what we have i...

Jagadish Chandra Bose (30 November 1858 – 23 November 1937) Acharya Sir Jagadish Chandra Bose, was a Bengali polymath, physicist, biologist,...

  Oh man, I share this with much trepidation because the last time I posted something about the work of Mike KG7TR ,  Pete N6QW said he fel...

In SolderSmoke Podcast #234, I said that I was scrutinizing the filter from the Swan 240 that I had picked up around 1994 in the Dominican R...

See also:  https://soldersmoke.blogspot.com/2021/11/soldersmoke-podcast-234-pssst-kwm-1-vhf.html

http://www.gadgeteer.us/17SSB.HTM SolderSmoke Podcast #234 is available:  http://soldersmoke.com/soldersmoke234.mp3 Roots of SolderSmoke: Th...

  K9YA Telegraph ran (on Facebook) this ad from 1954.  It provides an interesting view of where phone operations were in that year.  Note t...

  The cover caught my eye.  Thanks to the K9YA Telegraph for posting it.  I think it captures the allure of radio that most of us felt when ...

I built this receiver back in 1998, but I continue to have fun tinkering with it. I wrote an article about it for "Electric Radio"...