Very cool that SPRAT had a Double Sideband (DSB) transmitter article in its current issue (#191 Summer 2022). The author is DSB guru Eric Sears ZL2BMI,creator of the famous ZL2BMI DSB QRP transceiver.
I think DSB is a great way to break into homebrewing for phone. Building a DSB transmitter is a LOT easier than building an SSB rig. The DSB transmitter can then be converted into a DSB/Direct Conversion transceiver.
Here is a link to 75 SolderSmoke blog posts about DSB (keep on scrolling, keep on hitting the “older posts” button): https://soldersmoke.blogspot.com/search/label/DSB
Here are a bunch of blog posts that mention ZL2BMI: https://soldersmoke.blogspot.com/search?q=ZL2BMI
Thank you Eric, and thanks to G-QRP.