[MRCA] DC-DC Up Converter

[scottjohnson1 at cox.net]

https://www.amazon.com/dp/B09KRL9132/ref=sspa_dk_detail_5?psc=1&pd_rd_i=B09KRL9132&pd_rd_w=rsD1D&content-id=amzn1.sym.f2f1cf8f-cab4-44dc-82ba-0ca811fb90cc&pf_rd_p=f2f1cf8f-cab4-44dc-82ba-0ca811fb90cc&pf_rd_r=G72YST5DM0C9NN1Z03F0&pd_rd_wg=JcKA8&pd_rd_r=395d29b1-5318-46d8-b64f-0435194c312c&s=industrial&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWxfdGhlbWF0aWM






https://www.amazon.com/Adjustable-Electromagnetic-Efficiency-Overcurrent-Overvoltage/dp/B0FKMVTX35/ref=sr_1_5?crid=28GGHM4Y225ZB&dib=eyJ2IjoiMSJ9.0T4505AWr09EmSyDstH6syvTe2H9E4mJrug_KxqS5DzaEADw7GBcmZzSU4kgFcieHNfoVELGVLj22ZUVbwdzdpRzoUyP73BpbfPXovttjqKB59t4zj0rlLLy3k7x8O9m5hiEkTQxRZmWTExSNBmA7jtyysl6zN7FIbGOBnHEmgoGQrM2tTXjdMdj8-yEHqI5WvtoxHM2nhJSIhC1W_K4vm85zlWRMe04YlR3ZbgNOViT62MB_LiPUuoAheYJGQ28WEQGEgG5AQY9eqxmGSyPJHkpe8u5tsANFa0epnk4mdw.ggxAwgP7oCWFnLcsBfjA-H7fL9RJ1eW6YYnhm8rESiI&dib_tag=se&keywords=DC-DC+converter+40-390&qid=1757697021&s=industrial&sprefix=dc-dc+converter+40-390%2Cindustrial%2C217&sr=1-5




-----Original Message-----
From: mstangelo at comcast.net <mstangelo at comcast.net> 
Sent: Friday, September 12, 2025 10:03
To: scottjohnson1 at cox.net; mrca at mailman.qth.net
Subject: Re: [MRCA] DC-DC Up Converter

Scott,

CAn you provide links to the converter you are using? 

Mike N2MS

> On 09/12/2025 12:40 PM EDT scottjohnson1 at cox.net wrote:
> 
> 
> Amazon is you friend. There are all manner of DC-DC boost and buck converters that will do yeoman service for you, the buck converters are a few bucks ($3-6), and there is a nice 45-390V boost converter from several sources for around $10.00. (There are two versions- a bi-polar, and a positive only, don’t get the bipolar unless you need it, as it is half the current) They will deliver up to 30W over the output voltage range. I have used them as dynamotor replacements, literally fitting the converter in a gutted dynamotor case. I have used literally dozens of these over the last 5 years, and find they work very well, with quite high efficiency.
> 
> Regards,
> Scott W7SVJ
>