50Hz vs. 60Hz

It's best to check the label on the PSU. SMPU's quite often cover the voltage & current ranges with out changing anything. In the case of linear supplies it's usually a strap on the transformer that connects two 110v windings in parallel for 110v and series for 240v. I can't recall any options for frequency changes on a DEC system except for transformers with a cap. across the transformer and line time clock options. Regards Rod Smallwood -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Zane H. Healy Sent: 23 September 2009 21:03 To: General Discussion: On-Topic and Off-Topic Posts; cctech cctech Subject: Re: 50Hz vs. 60Hz At 4:59 PM +0000 9/23/09, Mike Ross wrote: It makes me bit nervous. Does any of it have settings for 50/60Hz? Timing might be an issue. I have one thought, what would it take to get/build a 60Hz to 50Hz power converter that would give you the right frequency and voltages? I used to work on a lot of computer equipment that required 400Hz power, and prior to that I was an electrician and actually maintained the power converters. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com (primary) | OpenVMS Enthusiast | | MONK::HEALYZH (DECnet) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | PDP-10 Emulation and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |