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Forum: Video Hardware Repair 01-12-2026, 03:14 PM
Replies: 17
Views: 581
Posted By vwestlife
Video has never been linked to the AC line...

Video has never been linked to the AC line frequency, at least not since NTSC color was introduced in the early 1950s and required the refresh rate to be changed from 60 Hz to 59.94 Hz.

At worst,...
Forum: Video Hardware Repair 01-08-2026, 05:41 AM
Replies: 17
Views: 581
Posted By radiokom
I would be careful if it says only 60hz and not...

I would be careful if it says only 60hz and not 50/60hz. If frequency is not important, manufacturers will almost always specify 50/60hz. There may be problems with the power supply. So I would bring...
Forum: Video Hardware Repair 01-08-2026, 12:47 AM
Replies: 17
Views: 581
Posted By timtape
Yes for the later SMPS VCRs the 50/60 Hz is not...

Yes for the later SMPS VCRs the 50/60 Hz is not the issue but possibly the mains voltage may is. I would only supply 240vac to the VCR if the owners manual and the label on the back of the VCR...
Forum: Video Hardware Repair 01-08-2026, 12:24 AM
Replies: 17
Views: 581
Posted By lordsmurf
In the early 90s, there was a silent switching to...

In the early 90s, there was a silent switching to worldwide PSUs, and the 50Hz vs. 60Hz starting to be generated within the device, rather than rely on external power to control it.

I think...
Forum: Video Hardware Repair 01-07-2026, 04:41 PM
Replies: 17
Views: 581
Posted By aramkolt
My understanding is that for switching power...

My understanding is that for switching power supplies, as long as they are rated for the voltage in question or more, the frequency of AC should not matter between 50 or 60Hz. Essentially what...
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