Re: De Dietrich cooling fan
Part number 79×3503??
Masterpart is £150+ but is OOS and list SIL 2.12DNB002130 as an alternative. Also OOS.
Might be worth trying a pattern but a lot of Brandt stuff is sold a lot cheaper in France.
This is one of many French sites selling them:
http://www.indipc.fr/connectique,79×350 … -0.fr.html
Also, just try taking a couple of patterns with you and changing the motor if it the motor that’s faulty.
A quick image search shows it looks like a normal cooling fan.