Looking for small 110V to 220V transformer.

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Discussion Overview

The discussion revolves around the difficulty of finding small 110V to 220V isolation transformers, specifically those with a power rating of 5 to 15VA. Participants express frustration over the prevalence of solid-state converters in search results and share links to products they believe may meet the original poster's needs.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • The original poster notes a significant decline in the availability of small isolation transformers, expressing confusion over the shift from traditional transformers to solid-state converters in online searches.
  • Some participants suggest using Google Images to find suitable transformers more efficiently, sharing links to specific products they believe may fit the criteria.
  • One participant highlights a specific product from Stancor, although it has cords instead of leads, which may not meet the original poster's requirements.
  • Another participant provides a link to a product that has leads, suggesting it could be used as an isolation transformer.
  • There is a mention of a 40VA isolation transformer from Stancor, which may not align with the original poster's request for smaller units.

Areas of Agreement / Disagreement

Participants generally agree on the difficulty of finding small isolation transformers, but there is no consensus on specific products that meet the original poster's requirements. The discussion includes multiple suggestions and links, but no definitive solution is reached.

Contextual Notes

Participants express varying levels of familiarity with online searching techniques, which may affect their ability to find the desired transformers. The discussion also reflects a potential gap in the market for small isolation transformers compared to previous years.

yungman
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Believe it or not, I have problem finding a small 110V to 220V isolation transformer! No matter how I typed in the search, I get solid state converters. This is true on ebay and Amazon and Digikey! What happened? It used to be so common and cheap to buy a small isolation transformer, it's everywhere. Anyone has suggestion? I just want about 5 to 15VA ones, leaded. I could swear 20 years ago, you go to Tamura or EWC etc, you'll find them just like that!

To be specific, I mean real transformer with iron core and primary and secondary winding! I can't even take for granted here!:biggrin:
 
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yungman said:
Believe it or not, I have problem finding a small 110V to 220V isolation transformer! No matter how I typed in the search, I get solid state converters. This is true on ebay and Amazon and Digikey! What happened? It used to be so common and cheap to buy a small isolation transformer, it's everywhere. Anyone has suggestion? I just want about 5 to 15VA ones, leaded. I could swear 20 years ago, you go to Tamura or EWC etc, you'll find them just like that!

To be specific, I mean real transformer with iron core and primary and secondary winding! I can't even take for granted here!:biggrin:

I often use a Google Images search, to help me get to the good hits quicker. I used Google Images and a quoted search on "isolation transformer", and this is one of the pics at the top of the first page -- from Stancor:

http://theelectrostore.com/shopsite...250-gisd-250-isolation-transformer-250VA.html

Is that what you are looking for?
 
Although that one has cords on it instead of leads...

Here's one with leads -- you could just use the isolation transformer part, and not the follow-on transformer part:

http://diyparadise.com/shop/index.php?main_page=product_info&cPath=9&products_id=96

.
 
Last edited by a moderator:
Thanks for the quick reply, what is image search? I am not good with computers!

I am really looking for small 10VA stuffs. I did see some with cord, the 100VA+ stuff.
 
To do a Google Images search, go to Google.com and look for the "Images" link near the top of the page.

Ah, sorry, you only want 10VA. I'd still start with the Google Images search to see if you see something small there...
 
berkeman said:
To do a Google Images search, go to Google.com and look for the "Images" link near the top of the page.

Ah, sorry, you only want 10VA. I'd still start with the Google Images search to see if you see something small there...

Thanks, I'll try that.
 

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