Re: Transformer primary voltage entry won't stay put on Mac version

#76

Hi, and thanks?for getting back to me so promptly. Maybe toolbar is the wrong term. At the top of the the app it has File, Options and Help buttons along with the name PSUD2. This does not show itself unless I move my cursor all the way to the top of the screen and then it drops down in view but if I move the cursor down even a tiny bit, it retracts back up out of view. Again, maybe this is something to do with my macbook but it hasn't occurred with anything else.

On the issue with the transformer primary voltage flipping back to 240, when I run the app on my PC, there's no issue and it stays set to 120 when I reclick on the transformer but not so with the mac.
The problem with the mac is after I set it to 120, and click ok, it immediately reverts back to 240 even without doing anything else. Maybe it doesn't affect the ability of the program to calculate things?

?

?The version I'm using is PSUD2 version 2.20 build 74

My mac OS version is Catalina version 10.15.7 from mid 2012

Thanks,
Allen

?

Re: Transformer primary voltage entry won't stay put on Mac version

#75

Hi, and thanks?for getting back to me so promptly!. On the issue with the transformer primary voltage flipping back to 240, when I run the app on my PC, there's no issue and it stays set to 120 when I reclick on the transformer but not so with the mac . The problem with the mac is after I set it to 120, and click ok, it immediately reverts back to 240 even without doing anything else. Maybe it doesn't matter on values produced by the program?

PSUD2 version 2.20 build 74

My mac OS version is Catalina version 10.15.7 from mid 2012

Thanks,

Allen

Show quoted text

On Tue, Sep 14, 2021 at 2:41 PM Duncan Munro <duncan@...> wrote:

Hi Allen,

Not sure about the toolbar issue, I cannot find a toolbar above the design area. Could you please let me know what version of MacOS you are using? You can find this by clicking on the Apple logo at the top left and selection About this Mac. It will give a name and a version number, ?Also can you let me know what build of PSUD you are using which can be found from Help -> About.

The transformer voltage is set at 240 in a calculator screen, it's not saved anywhere and it just defaults back to the programmed settings every time you access it. I can amend it so it leaves the existing values for when you go into the calculator again during your current session.

Regards,
Duncan

Re: Transformer primary voltage entry won't stay put on Mac version

#74

On Tue, Sep 14, 2021 at 02:03 PM, Allen wrote:

I enter the transformer primary voltage of 120

Windows PSUD2, I do not see a transformer primary voltage. Only secondary.

Win7 home premium, 64bit
PSU Designer II
Ver: 2.22 Build 76
WRITTEN BY Duncan Munro
Copyright ?1998-2020 Duncan Amplification

Re: Transformer primary voltage entry won't stay put on Mac version

#73

Hi Allen,

Not sure about the toolbar issue, I cannot find a toolbar above the design area. Could you please let me know what version of MacOS you are using? You can find this by clicking on the Apple logo at the top left and selection About this Mac. It will give a name and a version number, ?Also can you let me know what build of PSUD you are using which can be found from Help -> About.

The transformer voltage is set at 240 in a calculator screen, it's not saved anywhere and it just defaults back to the programmed settings every time you access it. I can amend it so it leaves the existing values for when you go into the calculator again during your current session.

Regards,
Duncan

Transformer primary voltage entry won't stay put on Mac version

#72

I recently got a Macbook pro and downloaded the mac version of PSUD2. Only having a couple of issues I wanted to run by the group.
1. toolbar above the design area stays hidden until you move your cursor up to the top of the screen then it appears as long as you keep it there. Maybe this is just an Apple issue but wanted to check with you as well.

2. When I enter the transformer primary voltage of 120, it enters fine but when hitting the OK at the bottom of the block and reopen, it keeps changing back to the 240 volts. I've tried removing the program and reinstalling but still does the same thing every time.

Thanks!

Re: PSUD News

#71

开云体育

Hello Duncan,

?

Really great work!

?

Best regards,

Kees.

?

Show quoted text

Van: [email protected] <[email protected]> Namens Duncan Munro
Verzonden: maandag 23 augustus 2021 10:00
Aan: [email protected]
Onderwerp: [duncanampspsud] PSUD News

?

Hi,

Thought I would string a few words together about what's happening right now and what people can expect in the future from PSUD.

PSUD3 is still very much on the go, with a number of key features being implemented:

CODE COMPLETED

Rectifier database built into the software
Rectifier curve fit to make your own from datasheets (Solver)
Totally rewritten calculation engine with much better accuracy

IN DEVELOPMENT

New "splitter" filter to allow your power feed to split into two or more threads, each with their own filtering and load
Ability to mix rectifiers within a supply (e.g. bridge with 2 x vacuum tube rectifiers and 2 x solid state)
Schottky rectifiers
Lots of charting improvements
Dozens more minor things

Hope the update is useful. I have a day job and an impending house move so don't get as much time as I would like for this, however I do try and spend some time on it each week :)

Finally, a couple of screen shots of the new rectifier database showing how data sheet information is used to create or validate a rectifier model.

Regards,
Duncan

Re: PSUD News

#70

开云体育

Many thanks. ?I love this program!

Joe Rossi

Show quoted text

On Aug 23, 2021, at 4:17 AM, David Hanslip <dhanslip@...> wrote:

Awesome!

Thanks Duncan.

On 23/08/2021 3:59 pm, Duncan Munro wrote:

Hi,

Thought I would string a few words together about what's happening right now and what people can expect in the future from PSUD.

PSUD3 is still very much on the go, with a number of key features being implemented:

CODE COMPLETED

Rectifier database built into the software

Rectifier curve fit to make your own from datasheets (Solver)

Totally rewritten calculation engine with much better accuracy

IN DEVELOPMENT

New "splitter" filter to allow your power feed to split into two or more threads, each with their own filtering and load

Ability to mix rectifiers within a supply (e.g. bridge with 2 x vacuum tube rectifiers and 2 x solid state)

Schottky rectifiers

Lots of charting improvements

Dozens more minor things

Hope the update is useful. I have a day job and an impending house move so don't get as much time as I would like for this, however I do try and spend some time on it each week :)

Finally, a couple of screen shots of the new rectifier database showing how data sheet information is used to create or validate a rectifier model.

<screenshot_rectifier_database.png>

<screenshot_edit_rectifier_1.png>

<screenshot_edit_rectifier_2.png>

<screenshot_edit_rectifier_3.png>

Regards,
Duncan

Virus-free.

Re: PSUD News

#69

Thanks Duncan. Great work!
Tom

Re: PSUD News

#68

开云体育

Awesome!

Thanks Duncan.

On 23/08/2021 3:59 pm, Duncan Munro wrote:

Hi,

Thought I would string a few words together about what's happening right now and what people can expect in the future from PSUD.

PSUD3 is still very much on the go, with a number of key features being implemented:

CODE COMPLETED

Rectifier database built into the software

Rectifier curve fit to make your own from datasheets (Solver)

Totally rewritten calculation engine with much better accuracy

IN DEVELOPMENT

New "splitter" filter to allow your power feed to split into two or more threads, each with their own filtering and load

Ability to mix rectifiers within a supply (e.g. bridge with 2 x vacuum tube rectifiers and 2 x solid state)

Schottky rectifiers

Lots of charting improvements

Dozens more minor things

Hope the update is useful. I have a day job and an impending house move so don't get as much time as I would like for this, however I do try and spend some time on it each week :)

Finally, a couple of screen shots of the new rectifier database showing how data sheet information is used to create or validate a rectifier model.

Regards,
Duncan

Virus-free.

PSUD News

#67

Hi,

Thought I would string a few words together about what's happening right now and what people can expect in the future from PSUD.

PSUD3 is still very much on the go, with a number of key features being implemented:

CODE COMPLETED

Rectifier database built into the software
Rectifier curve fit to make your own from datasheets (Solver)
Totally rewritten calculation engine with much better accuracy

IN DEVELOPMENT

New "splitter" filter to allow your power feed to split into two or more threads, each with their own filtering and load
Ability to mix rectifiers within a supply (e.g. bridge with 2 x vacuum tube rectifiers and 2 x solid state)
Schottky rectifiers
Lots of charting improvements
Dozens more minor things

Hope the update is useful. I have a day job and an impending house move so don't get as much time as I would like for this, however I do try and spend some time on it each week :)

Finally, a couple of screen shots of the new rectifier database showing how data sheet information is used to create or validate a rectifier model.

Regards,
Duncan

Re: MacOS Install error - "the following disk images couldn't be opened" reason: no mountable files systems

#66

I am on OSX 10.10.2 and have the exact same problem, is there some compatibility issue with older OSX versions or perhaps the file is corrupt ?

Re: MacOS Install error - "the following disk images couldn't be opened" reason: no mountable files systems

#65

On 6/6/2021 1:03 PM, scott grinna via groups.io wrote:
I'm using an older 2010 MacWhich operating system? (Matters more than hardware model; although the hardware does limit what O/S you can run.)

Find out which macOS your Mac is using--

"From the Apple menu in the corner of your screen, choose About This Mac. You should see the macOS name, such as macOS Big Sur, followed by its version number. If you need to know the build number as well, click the version number to see it."

 -PRR

Re: MacOS Install error - "the following disk images couldn't be opened" reason: no mountable files systems

#64

开云体育

?

Hi Scott.

In my experience that error usually means the download is either corrupted or incomplete.

I’d try downloading it again.

Regards

Tristan

Show quoted text

On 7 Jun 2021, at 4:10 am, scott grinna via groups.io <sgrinna@...> wrote:

?Hi all -?

I'm using an older 2010 Mac and am having problems installing. I'm getting the error in the subject.

Any suggestions, other than it's just an incompatibility issue?

Thanks!

Scott

<Resized_20210605_214115.jpeg>

MacOS Install error - "the following disk images couldn't be opened" reason: no mountable files systems

scott grinna

#63

Hi all -?

I'm using an older 2010 Mac and am having problems installing. I'm getting the error in the subject.

Any suggestions, other than it's just an incompatibility issue?

Thanks!

Scott

Resized_20210605_214115.jpeg

Re: Soft Start Option

#62

开云体育

The simplest Soft Start circuit I have seen is in the Ameritron AL-1200.

73, Dick, W1KSZ

Show quoted text

From: [email protected] <[email protected]> on behalf of Robert Chambers <rchamber@...>
Sent: Friday, May 14, 2021 4:42 PM
To: [email protected] <[email protected]>
Subject: Re: [duncanampspsud] Soft Start Option

?

Hmm..."something simple, working for years..."

I've been doing that for years with a different topology/method that is
also something simple:

Power Amp: Two switches...switch on the filaments first, then after an
appropriate delay - actually the sequence below for the Preamp, switch on
the rectifier/HV.

Preamp:? Two switches, two powerstats (variacs), one each in front of
filament and HV/rectifier trafos...

???? Filament switch ON, power up gradually with powerstat, then...

???? HV switch ON, count to 30 with fingers (:)), power up gradually with
powerstat

Works great, no PCBs, no other stuff (relays, time delay modules, etc.)!

Best, 73 etc.,

RC

------------------------------------------------------------------------------------------------------

On Fri, 14 May 2021 08:10:14 -0700, "f1frv" <f1frv@...> wrote:
> hello
> Have a look for something simple, working for years...
> [1]
> 73s
> Dom
>
> Links:
> ------
> [1]
> [2] /g/duncanampspsud/message/60
> [3]
>
mailto:[email protected]?subject=Re:%20Re%3A%20%5Bduncanampspsud%5D%20Soft%20Start%20Option
> [4]
>
mailto:f1frv@...?subject=Private:%20Re:%20Re%3A%20%5Bduncanampspsud%5D%20Soft%20Start%20Option
> [5] /mt/81400426/90558
> [6] /g/duncanampspsud/post
> [7] /g/duncanampspsud/editsub/90558
> [8] mailto:[email protected]
> [9]
> /g/duncanampspsud/leave/8998765/90558/306449312/xyzzy

Re: Soft Start Option

#61

Hmm..."something simple, working for years..."

I've been doing that for years with a different topology/method that is
also something simple:

Power Amp: Two switches...switch on the filaments first, then after an
appropriate delay - actually the sequence below for the Preamp, switch on
the rectifier/HV.

Preamp:  Two switches, two powerstats (variacs), one each in front of
filament and HV/rectifier trafos...

     Filament switch ON, power up gradually with powerstat, then...

     HV switch ON, count to 30 with fingers (:)), power up gradually with
powerstat

Works great, no PCBs, no other stuff (relays, time delay modules, etc.)!

Best, 73 etc.,

RC

------------------------------------------------------------------------------------------------------

On Fri, 14 May 2021 08:10:14 -0700, "f1frv" <f1frv@...> wrote:
hello
Have a look for something simple, working for years...
 [1]
73s
Dom 

Links:
------
[1] 
[2] /g/duncanampspsud/message/60
[3]
mailto:[email protected]?subject=Re:%20Re%3A%20%5Bduncanampspsud%5D%20Soft%20Start%20Option
[4]
mailto:f1frv@...?subject=Private:%20Re:%20Re%3A%20%5Bduncanampspsud%5D%20Soft%20Start%20Option
[5] /mt/81400426/90558
[6] /g/duncanampspsud/post
[7] /g/duncanampspsud/editsub/90558
[8] mailto:[email protected]
[9]
/g/duncanampspsud/leave/8998765/90558/306449312/xyzzy

Re: Soft Start Option

#60

hello
Have a look for something simple, working for years...

73s
Dom

HV_supply_Low_Weight_Rev1a_Page1.png

Re: Soft Start Option

#59

I use the? Harbach Electronics "soft start" module.

Re: Soft Start Option

#58

Hi Robert,

The driver for the feature was choke input supplies fed by vacuum tubes - these will warm up over a few seconds rather than "spike" straight away and it's a good way to soften the start.

There are other soft start schemes, i.e. old schematics for linear amplifiers using a resistor in the line feed which is shorted by a relay after a couple of seconds, or the modern way of doing this with NTC thermistors. However, PSUD doesn't do an accurate model of these.

Regards,
Duncan

Soft Start Option

#57

Hi,  What are the real world possibillities here?  Variac?  Electronic
time delay?  Other?

Best,

RC in VT