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connecting my HT to an external power supply

 

Hello,

So I was given an external power supply at the White Elephant gift exchange during the ham club Christmas party. I spoke with the guy who built it, and he said it's a 2 amp power supply that would supply my HT but not much else. He did point out the danger that if I didn't connect things properly I could burn out my radio, but I'm still curious to learn how to do this even if I never take the chance. There's no diode, just a fuse, a couple of connectors (+ and -) and a plug that's surprisingly not grounded. And a DC dial, of course.

My question is this: I want to find the part he described. He said I'd need a part that fits into the battery slot with a couple of cords coming out, used to connect the HT to the poles on the power supply. The part would have to make contact with the contacts on the radio, yes the same ones the battery makes contacts with. Does anyone know what this part is called, or even a part number if one exists?

Thanks!
 

There is a DC in jack on the side of your HT. Have a look.
--
Gary
KY8M
Macomb, MI.
 

DON'T TRUST IT!!! Use only the proper Yaesu power supply from the manufacturer, for the type of battery in your FT 60!!!?


On Fri, Dec 15, 2023 at 12:50 PM, Jayne Rising KD9WLM
<jayne.rising@...> wrote:
Hello,

So I was given an external power supply at the White Elephant gift exchange during the ham club Christmas party. I spoke with the guy who built it, and he said it's a 2 amp power supply that would supply my HT but not much else. He did point out the danger that if I didn't connect things properly I could burn out my radio, but I'm still curious to learn how to do this even if I never take the chance. There's no diode, just a fuse, a couple of connectors (+ and -) and a plug that's surprisingly not grounded. And a DC dial, of course.

My question is this: I want to find the part he described. He said I'd need a part that fits into the battery slot with a couple of cords coming out, used to connect the HT to the poles on the power supply. The part would have to make contact with the contacts on the radio, yes the same ones the battery makes contacts with. Does anyone know what this part is called, or even a part number if one exists?

Thanks!

 

Gary, there's no DC connection on the power supply. There are simply two poles as I described. From what the elmer who made the power supply said, one connects the HT via the two cables to the two poles, obviously + to + and - to -. It certainly doesn't seem to be a commonly carried part, to say the least.

Like I said, I'm more curious about the process and how I'd do it than actually doing it. This Yaesu is my only HT right now worth caring about. Of course I could risk the UV5R-no worries if I burn that one out!
 

I personally wouldn't connect a power supply made by someone without knowing how good it is. There is a possibility the power supply isn't filtered properly and could do damage to your nice FT-60 HT. I'd stay with using the power supply made for your radio and that comes from Yaesu. Why risk ruining a good radio?
Just my two cents worth.
Dean - KC9REN
 

I agree with you: Cheap? power supplies can cause damage . I? actually use clip leads to power a few HTs with battery removed .73 K2FT
 

There's a DC jack on the radio that can accept a pretty wide voltage range. ?It's a 4x1.7mm coaxial jack. ?I got some adapters with PD triggers so that I can run it off USB power banks that can manage enough current (which would be any PD bank for receive-only).

I see others have expressed doubts about the quality of the power coming out of that particular supply. ?It doesn't have to be _great_ power, but, yeah, you might wanna ask yourself if it would better be used to run cheaper equipment (not that the FT-60 is gold-plated). ?If you do then definitely put a fuse holder in line with the wires from the plug to the radio. ?Not as important as if you run off a battery, but a good idea.

The thing he was talking about is a Yaesu FNB-83 Battery Eliminator. ?It comes with a car lighter socket plug on one end, and a dummy battery case on the other. ?Either cut that off, or get a female lighter socket you can attach to the power supply.
 

My two cents:?
One end has bare?wires, the other end has a jack for your radio. Easy-peasy. I suggest you carefully examine the homebrew power supply, you don't want any funny business ruining your radio!

73 de KK4KRK


-------------------------------

Karl Kaucher
Taylor Mill, Kentucky?

"I have decided to stick with love. Hate is too great a burden to bear."

? ? ? - Dr. Martin Luther King, Jr.
 

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I don’t intend this as an insult but only a caution: it’s probably best you don’t experiment with what I would consider a valuable piece of hardware if you don’t know what you are doing and by that I mean if you don’t understand the requirements of the radio and safety constraints that need to be employed.

You might ask: How do I learn this?

I learned it with a lot of smoke-generating experiments. I have done countless stupid things that didn’t work and that’s called experience. I would usually not experiment with my Ft60 unless I have done a lot of investigation and dry testing to determine if my assumptions about what I’m working on are correct. Everybody who has responded has great suggestions but if you don’t understand what they are saying you might step back and question your competence to do it. Again, that’s not an insult just friendly advice to keep you from smoking your Ft60. I experiment to eliminate “unknown unknowns” and even then I realize I have a lot to learn. I would consider working with my Baofeng before doing something with my Ft60. Just be safe no matter what and have fun. ??
 

In this vein, here’s a half-serious suggestion: put the white elephant power supply on a shelf until someone gives or lends you an oscilloscope. With it you’ll be able to see the input to and output from the supply as a function of time, and improve your understanding of AC, DC, rectification and filtering.

Good luck with any experiments you choose to do, and risk only those things you don’t mind destroying.

-KC6OEI


On Sat, Dec 16, 2023 at 19:16 Will W6SWF <2sheds@...> wrote:

I don’t intend this as an insult but only a caution: it’s probably best you don’t experiment with what I would consider a valuable piece of hardware if you don’t know what you are doing and by that I mean if you don’t understand the requirements of the radio and safety constraints that need to be employed.

You might ask: How do I learn this?
 
Edited

Thanks to those who replied with the process. I am taking to heart the caution to not risk my good radio in this way, but I am curious how it would be done. I'll consider the Baofeng version of the E-DC-6 and find a Baofeng version of the battery eliminator if I actually go through with trying it.? Maybe I'll just buy an oscilloscope.

Jayne
 

Followup: I just bought a pocket oscilloscope to play with. I can improve my understanding of a few things without risking my one reliable HT. This is cheaper than smoking my FT60 and can teach me stuff. Thanks again!

Jayne

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