The data sheet lists H5892 through H5899 and H5900 through H5911. Don Resor
Sent from someone's iPhone > On Nov 23, 2022, at 4:32 PM, Peter Coghlan via cctalk <cctalk@classiccmp.org> > wrote: > > Don, > > Does the url suggest you may have searched for a H5901 rather than a H9501? > > Regards, > Peter Coghlan. > >> >> NTE seems to turn up these possibilities for a H9501. >> >> https://www.nteinc.com/search/search/search.php?ss360Query=H5901 >> >> Don Resor >> >> Sent from someone's iPhone >> >>>> On Nov 23, 2022, at 12:04 PM, Antonio Carlini via cctalk >>>> <cctalk@classiccmp.org> wrote: >>> >>> On 21/11/2022 21:45, Antonio Carlini wrote: >>>> >>>> I have two more I can open up and look at, but I cannot get to them >>>> tonight and I'm probably out tomorrow too. But I think I can get to those >>>> other two supplies on Wednesday. Hopefully at least one of them will be >>>> readable! Otherwise I can desolder the diode from one of the other two and >>>> hopefully find a useful marking. >>> >>> >>> Turns out I have three more PSUs ... and the diode markings are >>> unfortunately invisible on all but one. That one is this one: >>> >>> https://drive.google.com/file/d/1TeGTcBBv7KecMJ2CmNcR0O-tb3jZigy6/view?usp=share_link >>> >>> >>> It's not really visible there either but with the PSU out and one end >>> desoldered I can see that it is marked H9501. I can also see that it >>> doesn't conduct either way, which might mean that this PSU is the >>> non-working one I know I have. Obviously the capacitor (820uF 250V >>> electrolytic) is going to need replacing (might as well do both). But first >>> I need to remove them and see what (if anything has happened) underneath. >>> >>> >>> This now goes back into my queue (behind the MicroVAXes and the H7868B PSU >>> modules) so if you fix yours before I get to mine, please let me know what >>> you did :-) >>> >>> >>> Antonio >>> >>> >>> -- >>> Antonio Carlini >>> anto...@acarlini.com >>> > >
