Vondior Battery Backup modification (Radio Mod)
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- čas přidán 28. 11. 2020
- Today I will modify the Vondior weather radio. This mod will supply the radio with enough power when changing the batteries so the time isn't lost and needing to be reset. Watch the video and find out how. This mod will work on other radios too. Do this at your own risk. I will not be responsible if something goes wrong and you burn your house down or your cat dies ect...
Music : Rondo Brother www.Rondobrothers.com
Opening Song: Dolphin - Věda a technologie
Nice Mod! Makes you wonder why the manufacturer couldn't spring for a cheap capacitor. But they pinch pinnies when it come to cheap radios.
Yeah I know right? It such a easy thing to do but I guess it just wasn’t in the budget. 😜
Cool! Fun to Tinker :)
Your such a geek. and I wouldn't expect anything less! :) Awesome mode! ~Jack, VEG
Well you know, if you have geek in your name then it must be true. 👍
Neat little trick to save time and frustration. Good one RG.
Thanks Carl. Did you get your roof fixed? I hope you are doing well.
@@TheRadiogeek Hey RG,,, looks like I have it secured to get thru winter,,,, thanks pal.
@@skycarl glad you got it worked out. Take care👍
Cool.
📻🙂
Gosh, brilliant idea!!
Thanks! 👍❤️📻
Neat mod!
Thanks!
I see that the AM coil wires are right over the metal speaker frame and magnet. That can't be a good idea.
Yes it not a good idea. I guess they ran out of room and or just didn’t care. Slap it together and get it out the door. 😜
@@TheRadiogeek LMAO
I'm guessing that a fairly easy mod would improve things a bit. I had the Horologe (sp?) version of that and the AM wasn't all that bad. The AGC circuit wasn't the best, though.
Great idea !
However, something is not right.
The time [t] it takes to a capacitor [C] to discharge [DU] at some current [I] is t = DU*C/I.
If we consider the clock stop at 2V we have DU = 1V => t = 1*10E-6/(100E-6) = 0.1 sec.
(the current is 95uA from the teardown measurement; aproximated to 100uA here)
So, for we to have 10 sec discharge time we need to have a capacitor 100 times larger than 10uF => we have at least 1000uF there.
Can you verify what is the situation ? Either the capacitor added is 1000uF or something was going wrong when you first changed the batteries (like for instance pressing a button by mistake ?)
ps - i'm kind of a geek myself with radios :)
I just checked and it is a 10uf cap. I powered the radio with a power supply and lowed the voltage until the display went out. The voltage at that point was 1.64 volts
@@TheRadiogeek 🙂Yeah, those ceramic capacitors are usually small. I was looking at those electrolytic capacitors (one on the left and one on the right) and they seem to be 2 x 470uF. It is possible that they are holding most of the backup energy and that little one added helped them doing it.
@@IAdryan I don’t think so because without the 10uf cap installed the display go out almost instantly. The radio loses it time before you can get new batteries installed.
Kaha se milega