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Odd thing

Started by Unknown June 14, 2016
http://www.ebay.co.uk/itm/NV-UHL4-Electric-Device-42v-Soviet-Student-of-the-USSR-Vintage-Rare-1988-Russia/111302224559

What is it? It looks a little like a wallwart psu. But I'm far from convinced. I vaguely recall 42v being used rather than 220v in some places, but don't remember any details.


NT
On Tue, 14 Jun 2016 14:31:40 -0700 (PDT), tabbypurr@gmail.com wrote:

>http://www.ebay.co.uk/itm/NV-UHL4-Electric-Device-42v-Soviet-Student-of-the-USSR-Vintage-Rare-1988-Russia/111302224559 > >What is it? It looks a little like a wallwart psu. But I'm far from convinced. I vaguely recall 42v being used rather than 220v in some places, but don't remember any details. >NT
42V DC is the nominal charger voltage used for charging 36V Lithium Ion cells used on electric bicycles. <https://www.google.com/search?q=42v+charger+electric+bike> -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558
On Tue, 14 Jun 2016 14:31:40 -0700 (PDT), tabbypurr@gmail.com wrote:

>http://www.ebay.co.uk/itm/NV-UHL4-Electric-Device-42v-Soviet-Student-of-the-USSR-Vintage-Rare-1988-Russia/111302224559 > >What is it? It looks a little like a wallwart psu. But I'm far from convinced. I vaguely recall 42v being used rather than 220v in some places, but don't remember any details. > > >NT
The intention was to replace the 12 V with 42 V in car electrification, but I have not heard about it for years.
On Wed, 15 Jun 2016 08:32:49 +0300, upsidedown@downunder.com wrote:

>On Tue, 14 Jun 2016 14:31:40 -0700 (PDT), tabbypurr@gmail.com wrote: > >>http://www.ebay.co.uk/itm/NV-UHL4-Electric-Device-42v-Soviet-Student-of-the-USSR-Vintage-Rare-1988-Russia/111302224559 >> >>What is it? It looks a little like a wallwart psu. But I'm far from convinced. I vaguely recall 42v being used rather than 220v in some places, but don't remember any details. >> >> >>NT
>The intention was to replace the 12 V with 42 V in car >electrification, but I have not heard about it for years.
From Popular Mechanics Magazine... Whatever Happened to the 42-Volt Car? <http://www.popularmechanics.com/cars/a2198/4226979/> "So what went wrong here? The automotive industry found that switching off 42 volts wasn't that easy." -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558
On Wednesday, 15 June 2016 06:57:40 UTC+1, Jeff Liebermann  wrote:
> On Wed, 15 Jun 2016 08:32:49 +0300, upsidedown@downunder.com wrote: > >On Tue, 14 Jun 2016 14:31:40 -0700 (PDT), tabbypurr wrote: > > > >>http://www.ebay.co.uk/itm/NV-UHL4-Electric-Device-42v-Soviet-Student-of-the-USSR-Vintage-Rare-1988-Russia/111302224559 > >> > >>What is it? It looks a little like a wallwart psu. But I'm far from convinced. I vaguely recall 42v being used rather than 220v in some places, but don't remember any details. > >> > >> > >>NT > > >The intention was to replace the 12 V with 42 V in car > >electrification, but I have not heard about it for years. > > From Popular Mechanics Magazine... > Whatever Happened to the 42-Volt Car? > <http://www.popularmechanics.com/cars/a2198/4226979/> > "So what went wrong here? The automotive industry > found that switching off 42 volts wasn't that easy."
I don't believe it's any of the 3 explanations offered so far. It's a 1980s soviet device. NT
On Wed, 15 Jun 2016 08:32:49 +0300, upsidedown@downunder.com wrote:

>On Tue, 14 Jun 2016 14:31:40 -0700 (PDT), tabbypurr@gmail.com wrote: > >>http://www.ebay.co.uk/itm/NV-UHL4-Electric-Device-42v-Soviet-Student-of-the-USSR-Vintage-Rare-1988-Russia/111302224559 >> >>What is it? It looks a little like a wallwart psu. But I'm far from convinced. I vaguely recall 42v being used rather than 220v in some places, but don't remember any details. >> >> >>NT > >The intention was to replace the 12 V with 42 V in car >electrification, but I have not heard about it for years.
It was a bad idea.
On Tue, 14 Jun 2016 14:31:40 -0700 (PDT), the renowned
tabbypurr@gmail.com wrote:

>http://www.ebay.co.uk/itm/NV-UHL4-Electric-Device-42v-Soviet-Student-of-the-USSR-Vintage-Rare-1988-Russia/111302224559 > >What is it? It looks a little like a wallwart psu. But I'm far from convinced. I vaguely recall 42v being used rather than 220v in some places, but don't remember any details. > > >NT
Looks like something like Snap Circuits. The 220:42 center tapped would be the highest voltage it would be safe for students. --sp -- Best regards, Spehro Pefhany Amazon link for AoE 3rd Edition: http://tinyurl.com/ntrpwu8