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Hardly a project but …

 
(@acockburn)
Eminent Member

Back facing power LED for my Hacko FR-301 inspired by Mr. C’s mod 😀 


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Topic starter Posted : 24/03/2024 3:18 pm
Scuba-Man-1970, RadTekMan, Larry_N7LUF and 1 people reacted
Ovi4
 Ovi4
(@ovi4)
Honorable Member

Nice Job. An FR-301 is on my list of purchases this year (at some point). Tnx for sharing.


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Posted : 25/03/2024 4:05 am
acockburn reacted
(@rs-electron)
Trusted Member

@ovi4 Are you looking at the FR-301-03 or the 100 volt FR-301-81? The 100 volt model is about half the cost, I plug mine into a variac set to 100 volts and it works dandy!


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Posted : 27/03/2024 7:47 pm
Ovi4
 Ovi4
(@ovi4)
Honorable Member

@rs-electron the 230V unit, I’m after but…good to know Tnx for the idea. So if I were to go for the 100V version (I assume would be the Japanese version of it as in Japan they use 100V only as far as I recall) what online retailers would have that unit for 1/2 the price?


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Posted : 28/03/2024 12:12 am
(@rs-electron)
Trusted Member

@ovi4 I got my unit from Ebay. As you stated the model comes from a Japanese vendor. Shipping time was about a week.


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Posted : 28/03/2024 5:25 am
Ovi4 reacted
Ovi4
 Ovi4
(@ovi4)
Honorable Member

@rs-electron Good to know cool! Ta.


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Posted : 28/03/2024 6:39 am
sreaves
(@sreaves)
Eminent Member

Makes me wonder if the 100V ones would withstand 120V or if there is a tap on a transformer.

 

Sam

W3OHM


Sam Reaves
W3OHM

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Posted : 18/04/2024 9:16 pm
Ovi4
 Ovi4
(@ovi4)
Honorable Member

@sreaves I believe that such units do not have any transformers whatsoever. They are way too small to be able to accommodate one in a hand-held unit. it must be some “switch-mode” power supply (I suppose). For 12Vac you might have to make a custom 1: 0.9 ratio (isolation type) transformer or// some other way to somehow get rid of the 20Vac that you don’t want.


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Posted : 19/04/2024 12:30 pm
Ovi4
 Ovi4
(@ovi4)
Honorable Member

Sorry, I meant 120Vac not 12Vac but could no longer edit my post (I went past that time threshold in which you’re still allowed to edit your post). I think that the EDIT window is no more than 3-4 minutes. After that, you’re out of luck. Unfortunately, you just have to write a new post.


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Posted : 19/04/2024 12:41 pm
Larry_N7LUF reacted
Larry_N7LUF
(@larry_n7luf)
Honorable Member

@ovi4 I can not tell you how many time I want to go back to edit.


Larry – N7LUF

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Posted : 19/04/2024 2:53 pm
Ovi4 reacted
Ovi4
 Ovi4
(@ovi4)
Honorable Member

@larry_n7luf LOL…me too:)))) 🤣


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Posted : 19/04/2024 2:59 pm
Larry_N7LUF
(@larry_n7luf)
Honorable Member

@ovi4 You on the east coast and me on the west coast, I will not be coming over 🙄


Larry – N7LUF

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Posted : 19/04/2024 3:05 pm
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