: If searching on Google directly, use specific strings like Юный Техник 1985 pdf скачать to find a particular year.
: Don't forget to look for "Levsha" (Левша) and "A pochemu?" (А почему?) , which are famous spin-offs of the main magazine focused on DIY projects and younger children.
The most reliable sources for full archives (from 1956 to the present) include:
: Searching for "Yunyi Tekhnik" here will yield community-uploaded PDFs. This is often the best source for high-speed, direct downloads without ads.