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Variac [message #86984] Fri, 12 January 2018 09:50 Go to next message
johnnycamp5 is currently offline  johnnycamp5
Messages: 220
Registered: June 2015
Location: NJ
Master
Does this seem like a good little auto transformer?-

http://www.iseincstore.com/3pn1010bvariabletransformer120vacsinglephaseinput0-140vacoutput10acasedmodelwithcordplugreceptaclelightedswitchandfuse.aspx

I believe it is American made.
Re: Variac [message #86985 is a reply to message #86984] Fri, 12 January 2018 10:02 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 17269
Registered: January 2001
Illuminati (33rd Degree)

That's a Staco unit, and it's a good product. We used those on the bench at electronics classes back in school. Staco is an American company and have been around for decades.

You might check to see if Digikey has them, 'cause they're usually really competitive on price.

Re: Variac [message #86986 is a reply to message #86984] Fri, 12 January 2018 10:05 Go to previous messageGo to next message
johnnycamp5 is currently offline  johnnycamp5
Messages: 220
Registered: June 2015
Location: NJ
Master
Your right Wayne-

https://www.digikey.com/product-detail/en/staco-energy-products-company/3PN1010B/452-1003-ND/526078?utm_adgroup=Test%20&%20Measurement

Thanks.
Re: Variac [message #86991 is a reply to message #86986] Fri, 12 January 2018 16:08 Go to previous messageGo to next message
gofar99 is currently offline  gofar99
Messages: 1353
Registered: May 2010
Location: Southern Arizona
Illuminati (3rd Degree)
Ouch, $400+. If you can get by with 5 amps instead of 10 then the one in the link below is just fine.


https://www.ebay.com/itm/TDGC-0-5KM-500VA-Variable-Output-AC-Convertor-/152215213803

I use it both on the bench and to control a crock pot. Works fine.



Good Listening
Bruce
Re: Variac [message #86992 is a reply to message #86984] Fri, 12 January 2018 16:49 Go to previous messageGo to next message
johnnycamp5 is currently offline  johnnycamp5
Messages: 220
Registered: June 2015
Location: NJ
Master
Yes the Chinese one are much cheaper.
Re: Variac [message #87096 is a reply to message #86984] Sun, 21 January 2018 09:54 Go to previous messageGo to next message
johnnycamp5 is currently offline  johnnycamp5
Messages: 220
Registered: June 2015
Location: NJ
Master
I ended up getting this one used on Ebay for $131.-

index.php?t=getfile&id=2050&private=0

You can't tell from the crummy i-phone pic, but it appears gently used, and the knob turns nice and smooth.
Seems built like a tank.

I checked it with one of my cheap ass meters lol.

Plugged into an outlet (which reads 125.9V) at my workstation, it measures as follows-

Set at output 0-120V, it maxes out at 125.2V.
Set at output 0-140V, it maxes out at 151V.
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Re: Variac [message #87097 is a reply to message #87096] Sun, 21 January 2018 10:18 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 17269
Registered: January 2001
Illuminati (33rd Degree)

Oh, very good.

I'll bet your gear will like a nice even 110vrms signal from that.

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