[RFI] Report on 12V 750W server supplies

[Grant Saviers]

62.5a with power on/off control and 2.5a always on

One youtube states the crowbar is set at 13.8v & did not recommend 
setting output above 13.6   I haven't seen any advice for adjusting 
crowbar setpoint.

Grant KZ1W

On 6/5/2020 09:05, D C _Mac_ Macdonald wrote:
> What is the output current rating?
> 
> 73 de Mac, K2GKK/5
> Since 30 Nov 1953
> Oklahoma City, OK
> USAF, Retired ('61-'81)
> FAA, Retired ('94-'10)
> 
> ________________________________
> From: RFI <rfi-bounces+k2gkk=hotmail.com at contesting.com> on behalf of Brian Moran via RFI <rfi at contesting.com>
> Sent: Friday, June 5, 2020 10:58
> To: rfi at contesting.com <rfi at contesting.com>; Jim Brown <jim at audiosystemsgroup.com>
> Subject: Re: [RFI] Report on 12V 750W server supplies
> 
> I recently purchased the DPS-750RB A model, which is also shown as a HSTNS-PD18. Using the instructions on YouTube, I easily changed the voltage to 13.9v. I haven't had time to look for RFI using an SDR, and certainly won't have as extensive a test setup as Gary does.
> 
> I did not try to adjust higher than 14v, though that might be a good experiment. If I had any confidence I wouldn't damage something by doing so, I'd be willing to try higher voltages :-)
> 
> -Brian N9ADG
> 
> 
>      On Thursday, June 4, 2020, 10:41:17 PM PDT, Jim Brown <jim at audiosystemsgroup.com> wrote:
> 
>   On 6/4/2020 2:49 PM, Gary Johnson wrote:
>> Output is fixed right at 12V but there are notes on the web about how to change an internal feedback resistor to tweak that up a bit.
> 
> Thanks Gary. Do you know how high V+ can be set? Some radios, notably
> Elecraft rigs, have lower IMD at higher supply voltages, with 15V max.
> 
> 73, Jim K9YC
> 
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