Copyright © 1962 Poptronix, Inc.; used by permission.
Stereo Preamp Has Everything
By Daniel Meyer
This is early article by Daniel Meyer while he still worked at Southwest Research Institute. You ordered the circuit boards from his home in San Antonio. The magazine cover has the preamp over the schematic, this style was common in SWTPC catalogs in the 1970s.
Each page is a 150 dpi jpg image.