You are talking about Swiss branded products, which are costly and as as buying incentive may deliver additional features.
While I'm referring to the typical, low priced, China made "quartz line release", or "blue box demag", or even "Bergeon 3321 copy". These all deliver a pulse that is as long as you press the button.
Yes, I believe you are. Back in the stone age, my 3.5" floppy disks and their external unit could not stand even close to the CRT monitors without becoming corrupted. Lucky, these troubles are now a thing of the past.