This Vintage Engineering Certification Document is a rare find for enthusiasts of pre-1930 engineering antiques.
It features a captivating vignette of a large steam engine, adding to its charm and appeal. The document is one of only three United States Inspectors Certificates to Engineers currently available.
Dated April 4, 1890, it certifies Charles R. Malcolm as a competent and reliable…

The Clarett+ OctoPre by Focusrite is an eight-channel ADAT preamp designed for both aspiring and established engineers.
With eight high headroom, low noise, and low distortion Clarett+ preamps featuring All-analogue Air with relay-controlled circuitry, this preamp captures drums, vocals, and acoustic instruments with superb clarity.
Additionally, the two JFET instrument inputs capture the…