On Thu, Oct 28, 2021 at 06:42 PM, Dave_G0WBX wrote:
By the sound of it, non unlike some of the early Tek 465 'scope fans, but probably physically very different.
As it happens, some HP 8620 series were equipped with the very same Siemens fan motor that Tek used in their 465-family of 'scopes.
A lot has been written about their behaviour and overhaul, see Tekscopes groups.io.
Raymond
