[M100] Using a US DVI unit in the UK
Hey guys I've just to receipt of my very own disk video interface and i can't wait to try it out. However I'd like to ask for some advice. Does the DVI need a US to UK adapter or will it operate with 240v? Reading the service manual it lists 120v, 220v and 240v as operating voltages on page 1-4. I would have thought this would only be possible with the appropriate power supply fitted. However I'm by now means an authority on the subject and wanted to ask for advice. Many thanks James -- My retro tech blog and general ramblings http://bytemyvdu.wordpress.com/
Re: [M100] Using a US DVI unit in the UK
You will need a 240VAC to 110VAC autotransformer to run the DVI. Probably an adapter for the TV too, need to convert the composite output to UK standards. Unless you have a universal input monitor to use. The units are regionally specific. From: M100 on behalf of James Zeun Reply-To: Date: Saturday, February 15, 2020 at 11:38 PM To: Subject: [M100] Using a US DVI unit in the UK > > > Hey guys > > I've just to receipt of my very own disk video interface and i can't wait to > try it out. However I'd like to ask for some advice. Does the DVI need a US to > UK adapter or will it operate with 240v? > > Reading the service manual it lists 120v, 220v and 240v as operating voltages > on page 1-4. I would have thought this would only be possible with the > appropriate power supply fitted. However I'm by now means an authority on the > subject and wanted to ask for advice. > > > Many thanks > James > > > -- > My retro tech blog and general ramblings > http://bytemyvdu.wordpress.com/ > <https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fbytemyvdu.wo > rdpress.com%2F&data=02%7C01%7C%7C14526608852e42b622a508d7b26fc990%7C84df9e7fe9 > f640afb435%7C1%7C0%7C637174065493170981&sdata=Ehdnr62lh34bVSyvdgSa > uyKHrb1UYpEBd4bfehGKyzo%3D&reserved=0>
Re: [M100] Using a US DVI unit in the UK
Yeah after scrolling down to the parts section, it lists two different transformers. I think I initially was wondering how hard it might be to convert the unit to UK region. I'd have to track down every part on the list and then hope that was all that was needed. An auto transformer would probably work out much simpler and less hassle. On Sat, 15 Feb 2020 at 23:44, B4 Me100 wrote: > You will need a 240VAC to 110VAC autotransformer to run the DVI. > > Probably an adapter for the TV too, need to convert the composite output > to UK standards. Unless you have a universal input monitor to use. > > The units are regionally specific. > > From: M100 on behalf of James Zeun < > james.z...@gmail.com> > Reply-To: > Date: Saturday, February 15, 2020 at 11:38 PM > To: > Subject: [M100] Using a US DVI unit in the UK > > > > Hey guys > > I've just to receipt of my very own disk video interface and i can't wait > to try it out. However I'd like to ask for some advice. Does the DVI need a > US to UK adapter or will it operate with 240v? > > Reading the service manual it lists 120v, 220v and 240v as operating > voltages on page 1-4. I would have thought this would only be possible with > the appropriate power supply fitted. However I'm by now means an authority > on the subject and wanted to ask for advice. > > > Many thanks > James > > > -- > My retro tech blog and general ramblings > http://bytemyvdu.wordpress.com/ > <https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fbytemyvdu.wordpress.com%2F&data=02%7C01%7C%7C14526608852e42b622a508d7b26fc990%7C84df9e7fe9f640afb435%7C1%7C0%7C637174065493170981&sdata=Ehdnr62lh34bVSyvdgSauyKHrb1UYpEBd4bfehGKyzo%3D&reserved=0> > > -- My retro tech blog and general ramblings http://bytemyvdu.wordpress.com/
Re: [M100] Using a US DVI unit in the UK
It's the first time I've use a device needing a different voltage, I'm just looking online, from the looks of it I need a step down transformer. Just looking to see if I can find something that might go inside the DVI. On Sat, 15 Feb 2020 at 23:56, James Zeun wrote: > Yeah after scrolling down to the parts section, it lists two different > transformers. I think I initially was wondering how hard it might be to > convert the unit to UK region. I'd have to track down every part on the > list and then hope that was all that was needed. An auto transformer would > probably work out much simpler and less hassle. > > On Sat, 15 Feb 2020 at 23:44, B4 Me100 wrote: > >> You will need a 240VAC to 110VAC autotransformer to run the DVI. >> >> Probably an adapter for the TV too, need to convert the composite output >> to UK standards. Unless you have a universal input monitor to use. >> >> The units are regionally specific. >> >> From: M100 on behalf of James Zeun < >> james.z...@gmail.com> >> Reply-To: >> Date: Saturday, February 15, 2020 at 11:38 PM >> To: >> Subject: [M100] Using a US DVI unit in the UK >> >> >> >> Hey guys >> >> I've just to receipt of my very own disk video interface and i can't wait >> to try it out. However I'd like to ask for some advice. Does the DVI need a >> US to UK adapter or will it operate with 240v? >> >> Reading the service manual it lists 120v, 220v and 240v as operating >> voltages on page 1-4. I would have thought this would only be possible with >> the appropriate power supply fitted. However I'm by now means an authority >> on the subject and wanted to ask for advice. >> >> >> Many thanks >> James >> >> >> -- >> My retro tech blog and general ramblings >> http://bytemyvdu.wordpress.com/ >> <https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fbytemyvdu.wordpress.com%2F&data=02%7C01%7C%7C14526608852e42b622a508d7b26fc990%7C84df9e7fe9f640afb435%7C1%7C0%7C637174065493170981&sdata=Ehdnr62lh34bVSyvdgSauyKHrb1UYpEBd4bfehGKyzo%3D&reserved=0> >> >> > > -- > My retro tech blog and general ramblings > http://bytemyvdu.wordpress.com/ > -- My retro tech blog and general ramblings http://bytemyvdu.wordpress.com/
Re: [M100] Using a US DVI unit in the UK
I know little about power supplies, but I saw this and wondered if it wouldn't be any use for my situation. https://www.ebay.co.uk/itm/MV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA/332172908312?hash=item4d570c5718:g:GEEAAOSwb7ddLEFV Taking a 240V input and converting it to a more acceptable 110v for the DVI. On Sun, 16 Feb 2020 at 00:28, James Zeun wrote: > It's the first time I've use a device needing a different voltage, I'm > just looking online, from the looks of it I need a step down transformer. > Just looking to see if I can find something that might go inside the DVI. > > On Sat, 15 Feb 2020 at 23:56, James Zeun wrote: > >> Yeah after scrolling down to the parts section, it lists two different >> transformers. I think I initially was wondering how hard it might be to >> convert the unit to UK region. I'd have to track down every part on the >> list and then hope that was all that was needed. An auto transformer would >> probably work out much simpler and less hassle. >> >> On Sat, 15 Feb 2020 at 23:44, B4 Me100 wrote: >> >>> You will need a 240VAC to 110VAC autotransformer to run the DVI. >>> >>> Probably an adapter for the TV too, need to convert the composite output >>> to UK standards. Unless you have a universal input monitor to use. >>> >>> The units are regionally specific. >>> >>> From: M100 on behalf of James Zeun < >>> james.z...@gmail.com> >>> Reply-To: >>> Date: Saturday, February 15, 2020 at 11:38 PM >>> To: >>> Subject: [M100] Using a US DVI unit in the UK >>> >>> >>> >>> Hey guys >>> >>> I've just to receipt of my very own disk video interface and i can't >>> wait to try it out. However I'd like to ask for some advice. Does the DVI >>> need a US to UK adapter or will it operate with 240v? >>> >>> Reading the service manual it lists 120v, 220v and 240v as operating >>> voltages on page 1-4. I would have thought this would only be possible with >>> the appropriate power supply fitted. However I'm by now means an authority >>> on the subject and wanted to ask for advice. >>> >>> >>> Many thanks >>> James >>> >>> >>> -- >>> My retro tech blog and general ramblings >>> http://bytemyvdu.wordpress.com/ >>> <https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fbytemyvdu.wordpress.com%2F&data=02%7C01%7C%7C14526608852e42b622a508d7b26fc990%7C84df9e7fe9f640afb435%7C1%7C0%7C637174065493170981&sdata=Ehdnr62lh34bVSyvdgSauyKHrb1UYpEBd4bfehGKyzo%3D&reserved=0> >>> >>> >> >> -- >> My retro tech blog and general ramblings >> http://bytemyvdu.wordpress.com/ >> > > > -- > My retro tech blog and general ramblings > http://bytemyvdu.wordpress.com/ > -- My retro tech blog and general ramblings http://bytemyvdu.wordpress.com/
Re: [M100] Using a US DVI unit in the UK
That should work. Although I would probably enclose it to prevent accidentally touching the 240/110V. From: M100 on behalf of James Zeun Reply-To: Date: Sunday, February 16, 2020 at 1:03 AM To: Subject: Re: [M100] Using a US DVI unit in the UK > I know little about power supplies, but I saw this and wondered if it wouldn't > be any use for my situation. > https://www.ebay.co.uk/itm/MV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer- > 100VA/332172908312?hash=item4d570c5718:g:GEEAAOSwb7ddLEFV > <https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ebay.co > .uk%2Fitm%2FMV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA%2F3321729 > 08312%3Fhash%3Ditem4d570c5718%3Ag%3AGEEAAOSwb7ddLEFV&data=02%7C01%7C%7C6673f2a > 5b3c04747170c08d7b27b8e60%7C84df9e7fe9f640afb435%7C1%7C0%7C6371741 > 16041550271&sdata=HGyFL6ljb0Bs31xldT1PKsm%2FGkD4KZwhkpUwR8TdbkY%3D&reserved=0> > Taking a 240V input and converting it to a more acceptable 110v for the DVI.
Re: [M100] Using a US DVI unit in the UK
Would it effect the 50 / 60 hz frequency issue? Sent from my iPad > On 16 Feb 2020, at 6:38 am, B4 Me100 wrote: > > > That should work. Although I would probably enclose it to prevent > accidentally touching the 240/110V. > > From: M100 on behalf of James Zeun > > Reply-To: > Date: Sunday, February 16, 2020 at 1:03 AM > To: > Subject: Re: [M100] Using a US DVI unit in the UK > > I know little about power supplies, but I saw this and wondered if it > wouldn't be any use for my situation. > https://www.ebay.co.uk/itm/MV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA/332172908312?hash=item4d570c5718:g:GEEAAOSwb7ddLEFV > Taking a 240V input and converting it to a more acceptable 110v for the DVI.
Re: [M100] Using a US DVI unit in the UK
It should not, the changes made to use European voltages appear to be limited to the power supply area. There is a built in clock circuit that does not depend on the frequency of the supply. From: M100 on behalf of Reply-To: Date: Sunday, February 16, 2020 at 10:02 AM To: Subject: Re: [M100] Using a US DVI unit in the UK > Would it effect the 50 / 60 hz frequency issue? > > > > Sent from my iPad > >> On 16 Feb 2020, at 6:38 am, B4 Me100 wrote: >> >> >> That should work. Although I would probably enclose it to prevent >> accidentally touching the 240/110V. >> >> From: M100 on behalf of James Zeun >> >> Reply-To: >> Date: Sunday, February 16, 2020 at 1:03 AM >> To: >> Subject: Re: [M100] Using a US DVI unit in the UK >> >>> I know little about power supplies, but I saw this and wondered if it >>> wouldn't be any use for my situation. >>> https://www.ebay.co.uk/itm/MV-100-P1S1-Multi-Voltage-240V-to-110V-Transforme >>> r-100VA/332172908312?hash=item4d570c5718:g:GEEAAOSwb7ddLEFV >>> <https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ebay. >>> co.uk%2Fitm%2FMV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA%2F332 >>> 172908312%3Fhash%3Ditem4d570c5718%3Ag%3AGEEAAOSwb7ddLEFV&data=02%7C01%7C%7C7 >>> 89357eab34f4e279a7408d7b2c757bf%7C84df9e7fe9f640afb435%7C1%7C0%7 >>> C637174441542688474&sdata=qhv0OtQjOo3DGUoPmJNVwrSwKVYX6Vkh2miUsKG%2B50Y%3D&r >>> eserved=0> >>> Taking a 240V input and converting it to a more acceptable 110v for the DVI.
Re: [M100] Using a US DVI unit in the UK
Theoretically, transformers and motors made to run at 60Hz may overheat at 50Hz. I actually asked Steve Ciarcia's Circuit Cellar (who remembers that?) about this and got a fairly good answer. I had a Hammarlund Super Pro receiver once upon a time (US Signal Corps surplus) with a transformer that was good down to 25Hz and the power supply weighed a lot becasue of the steel in the transformer. In actual practice this has never happened to me, and I've migrated to the 50Hz world from the US. I even run a Sears table saw with its 60Hz motor on 50Hz (OK, it turns a bit slower) and figured I would just buy a new motor (maybe even 3 phase) when it burned out. Hasn't happened yet. Jonathan Från: M100 [m100-boun...@lists.bitchin100.com] för B4 Me100 [b4me...@hotmail.com] Skickat: den 16 februari 2020 11:35 Till: m...@bitchin100.com Ämne: Re: [M100] Using a US DVI unit in the UK It should not, the changes made to use European voltages appear to be limited to the power supply area. There is a built in clock circuit that does not depend on the frequency of the supply. From: M100 mailto:m100-boun...@lists.bitchin100.com>> on behalf of mailto:james.z...@gmail.com>> Reply-To: mailto:m...@bitchin100.com>> Date: Sunday, February 16, 2020 at 10:02 AM To: mailto:m...@bitchin100.com>> Subject: Re: [M100] Using a US DVI unit in the UK Would it effect the 50 / 60 hz frequency issue? Sent from my iPad On 16 Feb 2020, at 6:38 am, B4 Me100 mailto:b4me...@hotmail.com>> wrote: That should work. Although I would probably enclose it to prevent accidentally touching the 240/110V. From: M100 mailto:m100-boun...@lists.bitchin100.com>> on behalf of James Zeun mailto:james.z...@gmail.com>> Reply-To: mailto:m...@bitchin100.com>> Date: Sunday, February 16, 2020 at 1:03 AM To: mailto:m...@bitchin100.com>> Subject: Re: [M100] Using a US DVI unit in the UK I know little about power supplies, but I saw this and wondered if it wouldn't be any use for my situation. https://www.ebay.co.uk/itm/MV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA/332172908312?hash=item4d570c5718:g:GEEAAOSwb7ddLEFV<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ebay.co.uk%2Fitm%2FMV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA%2F332172908312%3Fhash%3Ditem4d570c5718%3Ag%3AGEEAAOSwb7ddLEFV&data=02%7C01%7C%7C789357eab34f4e279a7408d7b2c757bf%7C84df9e7fe9f640afb435%7C1%7C0%7C637174441542688474&sdata=qhv0OtQjOo3DGUoPmJNVwrSwKVYX6Vkh2miUsKG%2B50Y%3D&reserved=0> Taking a 240V input and converting it to a more acceptable 110v for the DVI. --- När du skickar e-post till SLU så innebär detta att SLU behandlar dina personuppgifter. För att läsa mer om hur detta går till, klicka här <https://www.slu.se/om-slu/kontakta-slu/personuppgifter/> E-mailing SLU will result in SLU processing your personal data. For more information on how this is done, click here <https://www.slu.se/en/about-slu/contact-slu/personal-data/>
Re: [M100] Using a US DVI unit in the UK
Thanks guys I might give this a try, I’ve not taken the lid off my DVI yet (wasn’t any call to) but I was kind of hoping I could do all this inside the unit, fit the step down transformer inside the case. Just to keep things neat and tidy. On the subject of motors, the floppy drives should still operate as normal? With Jonathan mentioning his table saw, it got me wondering. Sent from my iPad > On 16 Feb 2020, at 10:57 am, Jonathan Yuen wrote: > > Theoretically, transformers and motors made to run at 60Hz may overheat at > 50Hz. I actually asked Steve Ciarcia's Circuit Cellar (who remembers that?) > about this and got a fairly good answer. I had a Hammarlund Super Pro > receiver once upon a time (US Signal Corps surplus) with a transformer that > was good down to 25Hz and the power supply weighed a lot becasue of the steel > in the transformer. > > In actual practice this has never happened to me, and I've migrated to the > 50Hz world from the US. I even run a Sears table saw with its 60Hz motor on > 50Hz (OK, it turns a bit slower) and figured I would just buy a new motor > (maybe even 3 phase) when it burned out. Hasn't happened yet. > > Jonathan > > > Från: M100 [m100-boun...@lists.bitchin100.com] för B4 Me100 > [b4me...@hotmail.com] > Skickat: den 16 februari 2020 11:35 > Till: m...@bitchin100.com > Ämne: Re: [M100] Using a US DVI unit in the UK > > It should not, the changes made to use European voltages appear to be > limited to the power supply area. There is a built in clock circuit that > does not depend on the frequency of the supply. > > From: M100 > mailto:m100-boun...@lists.bitchin100.com>> > on behalf of mailto:james.z...@gmail.com>> > Reply-To: mailto:m...@bitchin100.com>> > Date: Sunday, February 16, 2020 at 10:02 AM > To: mailto:m...@bitchin100.com>> > Subject: Re: [M100] Using a US DVI unit in the UK > > Would it effect the 50 / 60 hz frequency issue? > > > > Sent from my iPad > > On 16 Feb 2020, at 6:38 am, B4 Me100 > mailto:b4me...@hotmail.com>> wrote: > > > That should work. Although I would probably enclose it to prevent > accidentally touching the 240/110V. > > From: M100 > mailto:m100-boun...@lists.bitchin100.com>> > on behalf of James Zeun mailto:james.z...@gmail.com>> > Reply-To: mailto:m...@bitchin100.com>> > Date: Sunday, February 16, 2020 at 1:03 AM > To: mailto:m...@bitchin100.com>> > Subject: Re: [M100] Using a US DVI unit in the UK > > I know little about power supplies, but I saw this and wondered if it > wouldn't be any use for my situation. > https://www.ebay.co.uk/itm/MV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA/332172908312?hash=item4d570c5718:g:GEEAAOSwb7ddLEFV<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ebay.co.uk%2Fitm%2FMV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA%2F332172908312%3Fhash%3Ditem4d570c5718%3Ag%3AGEEAAOSwb7ddLEFV&data=02%7C01%7C%7C789357eab34f4e279a7408d7b2c757bf%7C84df9e7fe9f640afb435%7C1%7C0%7C637174441542688474&sdata=qhv0OtQjOo3DGUoPmJNVwrSwKVYX6Vkh2miUsKG%2B50Y%3D&reserved=0> > Taking a 240V input and converting it to a more acceptable 110v for the DVI. > --- > När du skickar e-post till SLU så innebär detta att SLU behandlar dina > personuppgifter. För att läsa mer om hur detta går till, klicka här > <https://www.slu.se/om-slu/kontakta-slu/personuppgifter/> > E-mailing SLU will result in SLU processing your personal data. For more > information on how this is done, click here > <https://www.slu.se/en/about-slu/contact-slu/personal-data/>
Re: [M100] Using a US DVI unit in the UK
With such a cheap transformer in the DVI the 50Hz should not really produce much of an impact, the output voltage might be down slightly but I doubt the internal transformer is that well tuned to 60Hz. I would be more worried about failure of parts due to their age, especially the caps. On 16/2/20, 10:57 AM, "M100 on behalf of Jonathan Yuen" wrote: >Theoretically, transformers and motors made to run at 60Hz may overheat >at 50Hz. I actually asked Steve Ciarcia's Circuit Cellar (who remembers >that?) about this and got a fairly good answer. I had a Hammarlund Super >Pro receiver once upon a time (US Signal Corps surplus) with a >transformer that was good down to 25Hz and the power supply weighed a lot >becasue of the steel in the transformer. > >In actual practice this has never happened to me, and I've migrated to >the 50Hz world from the US. I even run a Sears table saw with its 60Hz >motor on 50Hz (OK, it turns a bit slower) and figured I would just buy a >new motor (maybe even 3 phase) when it burned out. Hasn't happened yet. > >Jonathan
Re: [M100] Using a US DVI unit in the UK
As far as I’m aware, from what Jim has told me. This is a perfectly working unit, it just needs a power supply. At the moment I’ve no means of powering up the DVI, until I come up with a solution. YES i could you one of those in the wall, adapters. But me being me, I have to be difficult and go for a harder option. If all else fails, I buy a small ABS enclosure and house the step down in there, if fitting it inside isn’t an option. Oh btw, according to the service manual the DVI requires about 60w. Some of the step down adapters I’ve seen are only 45w, so not any good. While I admit to knowing bugger all about the more in-depth side of power supplies. My common sense is telling me to buy a step down transformer with an output of 100w, to allow for a little wiggle room. Sent from my iPad > On 16 Feb 2020, at 11:13 am, B4 Me100 wrote: > > With such a cheap transformer in the DVI the 50Hz should not really > produce much of an impact, the output voltage might be down slightly but I > doubt the internal transformer is that well tuned to 60Hz. I would be more > worried about failure of parts due to their age, especially the caps. > >> On 16/2/20, 10:57 AM, "M100 on behalf of Jonathan Yuen" >> >> wrote: >> >> Theoretically, transformers and motors made to run at 60Hz may overheat >> at 50Hz. I actually asked Steve Ciarcia's Circuit Cellar (who remembers >> that?) about this and got a fairly good answer. I had a Hammarlund Super >> Pro receiver once upon a time (US Signal Corps surplus) with a >> transformer that was good down to 25Hz and the power supply weighed a lot >> becasue of the steel in the transformer. >> >> In actual practice this has never happened to me, and I've migrated to >> the 50Hz world from the US. I even run a Sears table saw with its 60Hz >> motor on 50Hz (OK, it turns a bit slower) and figured I would just buy a >> new motor (maybe even 3 phase) when it burned out. Hasn't happened yet. >> >> Jonathan > >
Re: [M100] Using a US DVI unit in the UK
The cleanest solution might be to buy a packaged autotransformer. This could be hidden under the desk and be available if you buy any other 110V kit :) Something greater than 100W would be fine for the DVI. RS have quite a few autotransformers: https://uk.rs-online.com/web/p/autotransformers/3101156/ Replacing the internal power transformer with a 240V model should be quite straightforward - although you would need to match the step down voltage which looks like 15-25V. All the 110V parts would need to be replaced to remain safe. The transformer *might* be a 110V running parallel windings, splitting the windings to a serial configuration would allow a 240V primary. That might be a future project once you have explored the DVI a little. RS have quite a few suitable looking transformers too. The FDD motors do not rely on the frequency of the supply they are driven by on board logic, so the 50Hz will be fine. On 16/2/20, 12:10 PM, "m100-boun...@lists.bitchin100.com on behalf of james.z...@gmail.com" wrote: >As far as I¹m aware, from what Jim has told me. This is a perfectly >working unit, it just needs a power supply. > >At the moment I¹ve no means of powering up the DVI, until I come up with >a solution. YES i could you one of those in the wall, adapters. But me >being me, I have to be difficult and go for a harder option. If all else >fails, I buy a small ABS enclosure and house the step down in there, if >fitting it inside isn¹t an option. > >Oh btw, according to the service manual the DVI requires about 60w. Some >of the step down adapters I¹ve seen are only 45w, so not any good. While >I admit to knowing bugger all about the more in-depth side of power >supplies. My common sense is telling me to buy a step down transformer >with an output of 100w, to allow for a little wiggle room.
Re: [M100] Using a US DVI unit in the UK
Don't worry about the frequency for the drives. Floppy drives run on 5/12 volts DC, there is no AC there. Table saw had an induction motor, so a 60Hz motor goes slower on 50Hz. jonathan.y...@mykopat.slu.se Från: M100 [m100-boun...@lists.bitchin100.com] för james.z...@gmail.com [james.z...@gmail.com] Skickat: den 16 februari 2020 12:10 Till: m...@bitchin100.com Ämne: Re: [M100] Using a US DVI unit in the UK Thanks guys I might give this a try, I’ve not taken the lid off my DVI yet (wasn’t any call to) but I was kind of hoping I could do all this inside the unit, fit the step down transformer inside the case. Just to keep things neat and tidy. On the subject of motors, the floppy drives should still operate as normal? With Jonathan mentioning his table saw, it got me wondering. Sent from my iPad > On 16 Feb 2020, at 10:57 am, Jonathan Yuen wrote: > > Theoretically, transformers and motors made to run at 60Hz may overheat at > 50Hz. I actually asked Steve Ciarcia's Circuit Cellar (who remembers that?) > about this and got a fairly good answer. I had a Hammarlund Super Pro > receiver once upon a time (US Signal Corps surplus) with a transformer that > was good down to 25Hz and the power supply weighed a lot becasue of the steel > in the transformer. > > In actual practice this has never happened to me, and I've migrated to the > 50Hz world from the US. I even run a Sears table saw with its 60Hz motor on > 50Hz (OK, it turns a bit slower) and figured I would just buy a new motor > (maybe even 3 phase) when it burned out. Hasn't happened yet. > > Jonathan > > > Från: M100 [m100-boun...@lists.bitchin100.com] för B4 Me100 > [b4me...@hotmail.com] > Skickat: den 16 februari 2020 11:35 > Till: m...@bitchin100.com > Ämne: Re: [M100] Using a US DVI unit in the UK > > It should not, the changes made to use European voltages appear to be > limited to the power supply area. There is a built in clock circuit that > does not depend on the frequency of the supply. > > From: M100 > mailto:m100-boun...@lists.bitchin100.com>> > on behalf of mailto:james.z...@gmail.com>> > Reply-To: mailto:m...@bitchin100.com>> > Date: Sunday, February 16, 2020 at 10:02 AM > To: mailto:m...@bitchin100.com>> > Subject: Re: [M100] Using a US DVI unit in the UK > > Would it effect the 50 / 60 hz frequency issue? > > > > Sent from my iPad > > On 16 Feb 2020, at 6:38 am, B4 Me100 > mailto:b4me...@hotmail.com>> wrote: > > > That should work. Although I would probably enclose it to prevent > accidentally touching the 240/110V. > > From: M100 > mailto:m100-boun...@lists.bitchin100.com>> > on behalf of James Zeun mailto:james.z...@gmail.com>> > Reply-To: mailto:m...@bitchin100.com>> > Date: Sunday, February 16, 2020 at 1:03 AM > To: mailto:m...@bitchin100.com>> > Subject: Re: [M100] Using a US DVI unit in the UK > > I know little about power supplies, but I saw this and wondered if it > wouldn't be any use for my situation. > https://www.ebay.co.uk/itm/MV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA/332172908312?hash=item4d570c5718:g:GEEAAOSwb7ddLEFV<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ebay.co.uk%2Fitm%2FMV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA%2F332172908312%3Fhash%3Ditem4d570c5718%3Ag%3AGEEAAOSwb7ddLEFV&data=02%7C01%7C%7C789357eab34f4e279a7408d7b2c757bf%7C84df9e7fe9f640afb435%7C1%7C0%7C637174441542688474&sdata=qhv0OtQjOo3DGUoPmJNVwrSwKVYX6Vkh2miUsKG%2B50Y%3D&reserved=0> > Taking a 240V input and converting it to a more acceptable 110v for the DVI. > --- > När du skickar e-post till SLU så innebär detta att SLU behandlar dina > personuppgifter. För att läsa mer om hur detta går till, klicka här > <https://www.slu.se/om-slu/kontakta-slu/personuppgifter/> > E-mailing SLU will result in SLU processing your personal data. For more > information on how this is done, click here > <https://www.slu.se/en/about-slu/contact-slu/personal-data/> --- När du skickar e-post till SLU så innebär detta att SLU behandlar dina personuppgifter. För att läsa mer om hur detta går till, klicka här <https://www.slu.se/om-slu/kontakta-slu/personuppgifter/> E-mailing SLU will result in SLU processing your personal data. For more information on how this is done, click here <https://www.slu.se/en/about-slu/contact-slu/personal-data/>
Re: [M100] Using a US DVI unit in the UK
First I'd like to thank everyone for their input thus far. And especially for not just telling me to buy an adaptor and stop making my life so difficult. I've gone ahead and bought this. https://www.ebay.co.uk/itm/391506287248 My thoughts were, remove it's guts and fit them inside the DVI (If I can). It looks fairly compact. On Sun, 16 Feb 2020, 2:41 pm Jonathan Yuen, wrote: > Don't worry about the frequency for the drives. > > Floppy drives run on 5/12 volts DC, there is no AC there. Table saw had > an induction motor, so a 60Hz motor goes slower on 50Hz. > > jonathan.y...@mykopat.slu.se > > Från: M100 [m100-boun...@lists.bitchin100.com] för james.z...@gmail.com [ > james.z...@gmail.com] > Skickat: den 16 februari 2020 12:10 > Till: m...@bitchin100.com > Ämne: Re: [M100] Using a US DVI unit in the UK > > Thanks guys > > I might give this a try, I’ve not taken the lid off my DVI yet (wasn’t any > call to) but I was kind of hoping I could do all this inside the unit, fit > the step down transformer inside the case. Just to keep things neat and > tidy. > > On the subject of motors, the floppy drives should still operate as > normal? With Jonathan mentioning his table saw, it got me wondering. > > > > > Sent from my iPad > > > On 16 Feb 2020, at 10:57 am, Jonathan Yuen wrote: > > > > Theoretically, transformers and motors made to run at 60Hz may overheat > at 50Hz. I actually asked Steve Ciarcia's Circuit Cellar (who remembers > that?) about this and got a fairly good answer. I had a Hammarlund Super > Pro receiver once upon a time (US Signal Corps surplus) with a transformer > that was good down to 25Hz and the power supply weighed a lot becasue of > the steel in the transformer. > > > > In actual practice this has never happened to me, and I've migrated to > the 50Hz world from the US. I even run a Sears table saw with its 60Hz > motor on 50Hz (OK, it turns a bit slower) and figured I would just buy a > new motor (maybe even 3 phase) when it burned out. Hasn't happened yet. > > > > Jonathan > > > > ________________ > > Från: M100 [m100-boun...@lists.bitchin100.com] för B4 Me100 [ > b4me...@hotmail.com] > > Skickat: den 16 februari 2020 11:35 > > Till: m...@bitchin100.com > > Ämne: Re: [M100] Using a US DVI unit in the UK > > > > It should not, the changes made to use European voltages appear to be > limited to the power supply area. There is a built in clock circuit that > does not depend on the frequency of the supply. > > > > From: M100 m100-boun...@lists.bitchin100.com>> on behalf of <mailto:james.z...@gmail.com>> > > Reply-To: mailto:m...@bitchin100.com>> > > Date: Sunday, February 16, 2020 at 10:02 AM > > To: mailto:m...@bitchin100.com>> > > Subject: Re: [M100] Using a US DVI unit in the UK > > > > Would it effect the 50 / 60 hz frequency issue? > > > > > > > > Sent from my iPad > > > > On 16 Feb 2020, at 6:38 am, B4 Me100 b4me...@hotmail.com>> wrote: > > > > > > That should work. Although I would probably enclose it to prevent > accidentally touching the 240/110V. > > > > From: M100 m100-boun...@lists.bitchin100.com>> on behalf of James Zeun < > james.z...@gmail.com<mailto:james.z...@gmail.com>> > > Reply-To: mailto:m...@bitchin100.com>> > > Date: Sunday, February 16, 2020 at 1:03 AM > > To: mailto:m...@bitchin100.com>> > > Subject: Re: [M100] Using a US DVI unit in the UK > > > > I know little about power supplies, but I saw this and wondered if it > wouldn't be any use for my situation. > > > https://www.ebay.co.uk/itm/MV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA/332172908312?hash=item4d570c5718:g:GEEAAOSwb7ddLEFV > < > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ebay.co.uk%2Fitm%2FMV-100-P1S1-Multi-Voltage-240V-to-110V-Transformer-100VA%2F332172908312%3Fhash%3Ditem4d570c5718%3Ag%3AGEEAAOSwb7ddLEFV&data=02%7C01%7C%7C789357eab34f4e279a7408d7b2c757bf%7C84df9e7fe9f640afb435%7C1%7C0%7C637174441542688474&sdata=qhv0OtQjOo3DGUoPmJNVwrSwKVYX6Vkh2miUsKG%2B50Y%3D&reserved=0 > > > > Taking a 240V input and converting it to a more acceptable 110v for the > DVI. > > --- > > När du skickar e-post till SLU så innebär detta att SLU behandlar dina > personuppgifter. För att läsa mer om hur detta går till, klicka här < > https://www.slu.se/om-slu/kontakta-slu/personuppgifter/> > > E-mailing SLU will result in SLU processing your personal data. For more > information on how this is done, click here < > https://www.slu.se/en/about-slu/contact-slu/personal-data/> > --- > När du skickar e-post till SLU så innebär detta att SLU behandlar dina > personuppgifter. För att läsa mer om hur detta går till, klicka här < > https://www.slu.se/om-slu/kontakta-slu/personuppgifter/> > E-mailing SLU will result in SLU processing your personal data. For more > information on how this is done, click here < > https://www.slu.se/en/about-slu/contact-slu/personal-data/> >
Re: [M100] Using a US DVI unit in the UK
That looks like a neat small unit. If you can get it internally mounted near the fan it should be a good option. From: M100 on behalf of James Zeun Reply-To: Date: Sunday, February 16, 2020 at 7:30 PM To: Subject: Re: [M100] Using a US DVI unit in the UK > First I'd like to thank everyone for their input thus far. And especially for > not just telling me to buy an adaptor and stop making my life so difficult. > > I've gone ahead and bought this. > > https://www.ebay.co.uk/itm/391506287248 > <https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ebay.co > .uk%2Fitm%2F391506287248&data=02%7C01%7C%7C360e7a1df37148e32c6f08d7b3169b58%7C > 84df9e7fe9f640afb435%7C1%7C0%7C637174781978690063&sdata=LsVXHkBkic > dGkn9rIZzh7lzS48NGLfsfviL0DGV4CZ4%3D&reserved=0> > > My thoughts were, remove it's guts and fit them inside the DVI (If I can). It > looks fairly compact. > > > > On Sun, 16 Feb 2020, 2:41 pm Jonathan Yuen, wrote: >> Don't worry about the frequency for the drives. >> >> Floppy drives run on 5/12 volts DC, there is no AC there. Table saw had an >> induction motor, so a 60Hz motor goes slower on 50Hz. >> >> jonathan.y...@mykopat.slu.se >> >> Från: M100 [m100-boun...@lists.bitchin100.com] för james.z...@gmail.com >> [james.z...@gmail.com] >> Skickat: den 16 februari 2020 12:10 >> Till: m...@bitchin100.com >> Ämne: Re: [M100] Using a US DVI unit in the UK >> >> Thanks guys >> >> I might give this a try, I’ve not taken the lid off my DVI yet (wasn’t any >> call to) but I was kind of hoping I could do all this inside the unit, fit >> the step down transformer inside the case. Just to keep things neat and tidy. >> >> On the subject of motors, the floppy drives should still operate as normal? >> With Jonathan mentioning his table saw, it got me wondering. >> >> >> >> >> Sent from my iPad >> >>> > On 16 Feb 2020, at 10:57 am, Jonathan Yuen wrote: >>> > >>> > Theoretically, transformers and motors made to run at 60Hz may overheat >>> at 50Hz. I actually asked Steve Ciarcia's Circuit Cellar (who remembers >>> that?) about this and got a fairly good answer. I had a Hammarlund Super >>> Pro receiver once upon a time (US Signal Corps surplus) with a transformer >>> that was good down to 25Hz and the power supply weighed a lot becasue of the >>> steel in the transformer. >>> > >>> > In actual practice this has never happened to me, and I've migrated to the >>> 50Hz world from the US. I even run a Sears table saw with its 60Hz motor on >>> 50Hz (OK, it turns a bit slower) and figured I would just buy a new motor >>> (maybe even 3 phase) when it burned out. Hasn't happened yet. >>> > >>> > Jonathan >>> > >>> > >>> > Från: M100 [m100-boun...@lists.bitchin100.com] för B4 Me100 >>> [b4me...@hotmail.com] >>> > Skickat: den 16 februari 2020 11:35 >>> > Till: m...@bitchin100.com >>> > Ämne: Re: [M100] Using a US DVI unit in the UK >>> > >>> > It should not, the changes made to use European voltages appear to be >>> limited to the power supply area. There is a built in clock circuit that >>> does not depend on the frequency of the supply. >>> > >>> > From: M100 >>> mailto:m100-boun...@lists.bitchin100.com> >>> > on behalf of mailto:james.z...@gmail.com>> >>> > Reply-To: mailto:m...@bitchin100.com>> >>> > Date: Sunday, February 16, 2020 at 10:02 AM >>> > To: mailto:m...@bitchin100.com>> >>> > Subject: Re: [M100] Using a US DVI unit in the UK >>> > >>> > Would it effect the 50 / 60 hz frequency issue? >>> > >>> > >>> > >>> > Sent from my iPad >>> > >>> > On 16 Feb 2020, at 6:38 am, B4 Me100 >>> mailto:b4me...@hotmail.com>> wrote: >>> > >>> > >>> > That should work. Although I would probably enclose it to prevent >>> accidentally touching the 240/110V. >>> > >>> > From: M100 >>> mailto:m100-boun...@lists.bitchin100.com> >>> > on behalf of James Zeun >>> mailto:james.z...@gmail.com>> >>> > Reply-To: mailto:m...@bitchin100.com>> >>> > Date: Sunday, February 16, 2020 at 1:03 AM >>> >
Re: [M100] Using a US DVI unit in the UK
I'm crossing my fingers. I figure replace the power lead and wire it up to the step down. Then wire the step down to where ever the mains connects up inside the DVI. Maybe down the road with the advice of some on here. I might try making my DVI UK compliant, using the service manual as a guide. On Sun, 16 Feb 2020, 7:48 pm B4 Me100, wrote: > That looks like a neat small unit. If you can get it internally mounted > near the fan it should be a good option. > > From: M100 on behalf of James Zeun < > james.z...@gmail.com> > Reply-To: > Date: Sunday, February 16, 2020 at 7:30 PM > To: > Subject: Re: [M100] Using a US DVI unit in the UK > > First I'd like to thank everyone for their input thus far. And especially > for not just telling me to buy an adaptor and stop making my life so > difficult. > > I've gone ahead and bought this. > > https://www.ebay.co.uk/itm/391506287248 > <https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ebay.co.uk%2Fitm%2F391506287248&data=02%7C01%7C%7C360e7a1df37148e32c6f08d7b3169b58%7C84df9e7fe9f640afb435%7C1%7C0%7C637174781978690063&sdata=LsVXHkBkicdGkn9rIZzh7lzS48NGLfsfviL0DGV4CZ4%3D&reserved=0> > > My thoughts were, remove it's guts and fit them inside the DVI (If I can). > It looks fairly compact. > > > > On Sun, 16 Feb 2020, 2:41 pm Jonathan Yuen, wrote: > >> Don't worry about the frequency for the drives. >> >> Floppy drives run on 5/12 volts DC, there is no AC there. Table saw had >> an induction motor, so a 60Hz motor goes slower on 50Hz. >> >> jonathan.y...@mykopat.slu.se >> >> Från: M100 [m100-boun...@lists.bitchin100.com] för james.z...@gmail.com [ >> james.z...@gmail.com] >> Skickat: den 16 februari 2020 12:10 >> Till: m...@bitchin100.com >> Ämne: Re: [M100] Using a US DVI unit in the UK >> >> Thanks guys >> >> I might give this a try, I’ve not taken the lid off my DVI yet (wasn’t >> any call to) but I was kind of hoping I could do all this inside the unit, >> fit the step down transformer inside the case. Just to keep things neat and >> tidy. >> >> On the subject of motors, the floppy drives should still operate as >> normal? With Jonathan mentioning his table saw, it got me wondering. >> >> >> >> >> Sent from my iPad >> >> > On 16 Feb 2020, at 10:57 am, Jonathan Yuen >> wrote: >> > >> > Theoretically, transformers and motors made to run at 60Hz may >> overheat at 50Hz. I actually asked Steve Ciarcia's Circuit Cellar (who >> remembers that?) about this and got a fairly good answer. I had a >> Hammarlund Super Pro receiver once upon a time (US Signal Corps surplus) >> with a transformer that was good down to 25Hz and the power supply weighed >> a lot becasue of the steel in the transformer. >> > >> > In actual practice this has never happened to me, and I've migrated to >> the 50Hz world from the US. I even run a Sears table saw with its 60Hz >> motor on 50Hz (OK, it turns a bit slower) and figured I would just buy a >> new motor (maybe even 3 phase) when it burned out. Hasn't happened yet. >> > >> > Jonathan >> > >> > >> > Från: M100 [m100-boun...@lists.bitchin100.com] för B4 Me100 [ >> b4me...@hotmail.com] >> > Skickat: den 16 februari 2020 11:35 >> > Till: m...@bitchin100.com >> > Ämne: Re: [M100] Using a US DVI unit in the UK >> > >> > It should not, the changes made to use European voltages appear to be >> limited to the power supply area. There is a built in clock circuit that >> does not depend on the frequency of the supply. >> > >> > From: M100 > m100-boun...@lists.bitchin100.com>> on behalf of > <mailto:james.z...@gmail.com>> >> > Reply-To: mailto:m...@bitchin100.com>> >> > Date: Sunday, February 16, 2020 at 10:02 AM >> > To: mailto:m...@bitchin100.com>> >> > Subject: Re: [M100] Using a US DVI unit in the UK >> > >> > Would it effect the 50 / 60 hz frequency issue? >> > >> > >> > >> > Sent from my iPad >> > >> > On 16 Feb 2020, at 6:38 am, B4 Me100 > b4me...@hotmail.com>> wrote: >> > >> > >> > That should work. Although I would probably enclose it to prevent >> accidentally touching the 240/110V. >> > >> > From: M100 > m100-boun...@lists.bitchin100.com>> on behalf of
Re: [M100] Using a US DVI unit in the UK
Hey guys Not got my DVI powered up yet, still waiting on the step down unit to arrive. Thought I'd post up some progress I've made looking for solutions to using a 120v unit here in the UK. I saw this unit on Aliexpress. Dual Output AC Converter 110v 220v to DC 12V 8A - 5V 1A 100W Switching Power Supply. https://www.aliexpress.com/item/32981279958.html?spm=a2g0s.8937460.0.0.49532e0eUgoeHF I'm thinking something like this could be the answer, admittedly I will still be stuck with a 60hz video output. But I'm hoping my 17" LCD TV / Monitor can handle this, after all it's only a black and white output. One hurdle at a time I guess. -James
Re: [M100] Using a US DVI unit in the UK
I would think that replacing the internal DC power supply would be the best long-term option. No idea about the quality of the one you linked to. I usually prefer a brand like meanwell or something. On Thu, Feb 20, 2020, 6:12 AM james wrote: > Hey guys > > Not got my DVI powered up yet, still waiting on the step down unit to > arrive. > > Thought I'd post up some progress I've made looking for solutions to using > a 120v unit here in the UK. I saw this unit on Aliexpress. Dual Output AC > Converter 110v 220v to DC 12V 8A - 5V 1A 100W Switching Power Supply. > > > https://www.aliexpress.com/item/32981279958.html?spm=a2g0s.8937460.0.0.49532e0eUgoeHF > > I'm thinking something like this could be the answer, admittedly I will > still be stuck with a 60hz video output. But I'm hoping my 17" LCD TV / > Monitor can handle this, after all it's only a black and white output. One > hurdle at a time I guess. > > -James > > >
Re: [M100] Using a US DVI unit in the UK
I can't say I've encountered that brand here in the UK. I'll have to look it up On Thu, 20 Feb 2020, 2:56 pm Josh Malone, wrote: > I would think that replacing the internal DC power supply would be the > best long-term option. No idea about the quality of the one you linked to. > I usually prefer a brand like meanwell or something. > > On Thu, Feb 20, 2020, 6:12 AM james wrote: > >> Hey guys >> >> Not got my DVI powered up yet, still waiting on the step down unit to >> arrive. >> >> Thought I'd post up some progress I've made looking for solutions to >> using a 120v unit here in the UK. I saw this unit on Aliexpress. Dual >> Output AC Converter 110v 220v to DC 12V 8A - 5V 1A 100W Switching Power >> Supply. >> >> >> https://www.aliexpress.com/item/32981279958.html?spm=a2g0s.8937460.0.0.49532e0eUgoeHF >> >> I'm thinking something like this could be the answer, admittedly I will >> still be stuck with a 60hz video output. But I'm hoping my 17" LCD TV / >> Monitor can handle this, after all it's only a black and white output. One >> hurdle at a time I guess. >> >> -James >> >> >>
