This is a rare sound effect used by Soyuzmultfilm. It was created by Georgy Martinuk. This sound made a debut in animated short "Mountain of Dinosaurs" (rus. Гора динозавров). The sound effect usually used for every collisions.
Used In
TV Shows
Merry-Go-Round (Heard once in "The Princess and the Ogre" and twice in "Butterfly and Tiger".)
Shorts
The Adventures of Cucumber (1970)
Fox, Bear and his Motorcycle with Sidecar (1969)
In the Land of Unlearned Lessons (1969)
Mountain of Dinosaurs (1967) (Debut; high-pitched.)
On the Back School Desk (1978) (Heard only in episodes 1 and 2.)
Rainbow (1975) (low-pitched.)
Image Gallery
The Adventures of Cucumber (1970) Georgy Martinuk Head Bonk
Fox, Bear and his Motorcycle with Sidecar (1969) Georgy Martinuk Head Bonk
In the Land of Unlearned Lessons (1969) Georgy Martinuk Head Bonk
Merry-Go-Round №9. The Princess and the Ogre (1977) Georgy Martinuk Head Bonk
Merry-Go-Round №10. Butterfly and Tiger (1978) Georgy Martinuk Head Bonk
Merry-Go-Round №10. Butterfly and Tiger (1978) Georgy Martinuk Head Bonk
Mountain of Dinosaurs (1967) Georgy Martinuk Head Bonk (High-pitched)
On The Back School Desk (1978) Georgy Martinuk Head Bonk
On The Back School Desk. Issue Two (1980) Georgy Martinuk Head Bonk
Audio Samples
https://soundeffects.fandom.com/wiki/File:Georgy_Martinuk_Head_Bonk.mp3
https://soundeffects.fandom.com/wiki/File:Georgy_Martinuk_Head_Bonk_(debut).ogg (high-pitched, as heard in debut.)