[GreenKeys] power transformer

[Bob kb8tq]

Hi

Well, there *are* fairly conventional places to get transformers:

https://www.mouser.com/ProductDetail/Hammond-Manufacturing/185C230-BULK?qs=sGAEpiMZZMvwUzoUXIIvyVu1YGX4cZOZhtV58PR15ya430Jnlpgykw%3d%3d <https://www.mouser.com/ProductDetail/Hammond-Manufacturing/185C230-BULK?qs=sGAEpiMZZMvwUzoUXIIvyVu1YGX4cZOZhtV58PR15ya430Jnlpgykw==>

No, they aren’t as cheap as the parts from China.

Bob

> On Jul 30, 2018, at 8:56 PM, Paul Heller <paul0926 at comcast.net> wrote:
> 
> I’m afraid of Chinese electronics. I’ve seen online reviews of some pretty shoddy work with sub-standard components, hot glued items, etc.  What I’ve seen scares me from buying Chinese electronics items on eBay. 
> 
> Thank you for providing a link to a seller that you had success with.  
> 
> Paul
> 
> 
>> On Jul 30, 2018, at 11:42 AM, Jordan Spencer Cunningham <js at cunni.co <mailto:js at cunni.co>> wrote:
>> 
>> Hi Ralph,
>> 
>> I got a 0-150V DC PSU from a Chinese seller on eBay. The quality is pretty good in my experience, and they're much less expensive than the few other online stores I could find selling anything similar. Heck, even the shipping was really fast considering it came from China-- I think it only took a week and change for me to get mine. If you don't want to roll your own, then this is a great option-- I recommend them. I've had mine in use with output adjusted to 120VDC limited to around 60-120ma (depending on whether I'm driving one or two loops simultaneously) since about April of this year without any problems. You'll have plenty more current at your disposal than you need (all of their units seem to run with 3-4+ amps output available), but you can drive multiple loops at once if needed and could even run a DC reperforator or other DC-powered apparatus.
>> 
>> The seller's name is sheep20110812, and their storefront is here: https://www.ebay.com/usr/sheep20110812?_trksid=p2047675.l2559 <https://www.ebay.com/usr/sheep20110812?_trksid=p2047675.l2559>.
>> 
>> This model is more or less like the one I got (they seem to change them from time to time, so I don't think this one is exactly the same): https://www.ebay.com/itm/NEW-500W-0-150V-DC-Output-Adjustable-Switching-Power-Supply-CNC-WITH-CE/173440103288?hash=item2861d5f378:g:zNgAAOxy69JTDg-b <https://www.ebay.com/itm/NEW-500W-0-150V-DC-Output-Adjustable-Switching-Power-Supply-CNC-WITH-CE/173440103288?hash=item2861d5f378:g:zNgAAOxy69JTDg-b>
>> 
>> Here's a cheaper model that only ranges between 100 and 120VDC: https://www.ebay.com/itm/NEW-AC100-120V-to-150V-DC-3-3A-500W-Output-Regulated-Switching-Power-Supply/173423076000?hash=item2860d222a0:g:zNgAAOxy69JTDg-b <https://www.ebay.com/itm/NEW-AC100-120V-to-150V-DC-3-3A-500W-Output-Regulated-Switching-Power-Supply/173423076000?hash=item2860d222a0:g:zNgAAOxy69JTDg-b>
>> 
>> I know there are a couple other sellers on eBay with similar products, but I took a chance with this one and have been pleased thus far.
>> 
>> --Jordan
>> 
>> On Mon, Jul 30, 2018 at 11:20 AM, Jeffrey Angus <jdangus at att.net <mailto:jdangus at att.net>> wrote:
>> On 7/30/18 12:13 PM, Ralph Mowery wrote:
>>> There may have been other places that I can not think of that are
>>> similar to MPJ.
>>> 
>> 
>> <https://www.allelectronics.com/> <https://www.allelectronics.com/>
>> 
>> 
>> -- 
>> "I am a river to my people."
>> Jeff-1.0
>> WA6FWI
>> www.foxsmercantile.com <http://www.foxsmercantile.com/>
>> 
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