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zBitx at 13,8v

EB3AM Jordi All Messages By This Member #116083 Hello, we haven't received any zBitx yet and I'm already thinking about modifying something. I don't really like the fact that it goes to a maximum of 9v, and I would like to know how to modify the device to make it work at 13,8vdc like the rest of the radio devices that most of us have. I've looked at some components in the sBitx schematic and I think they are basically the same. So, what changes? I don't want to get more power (it wouldn't be bad to get 20w ;-) ) but I want to be able to have access to all the power sources I have. thanks... I'm anxiously awaiting my shipment from India... Jordi From Catalonia.
Ken N2VIP All Messages By This Member #116084 I think you'd be best served by using a regulator to turn 13.8v into 9v, rather than trying to redesign the radio to natively run on 13.8v. I imagine a suitable circuit could be installed in the 18650 battery case on the side of the zBitx case, rather than putting such a heat source inside the case. ? Personally, I plan to use the battery powered option, but I do understand the desire to operate from a standardized 13.8v power source... ? Ken, N2VIP
Gerald Sherman All Messages By This Member #116085 开云体育 You might want to look at some of the DROK buck converters.? I think they have one that will do what you want, & they are very power efficient. Gerry Sherman Sent by the Windows 11 Thunderbird On 2025-03-03 22:57, Ken N2VIP wrote: toggle quoted message Show quoted text I think you'd be best served by using a regulator to turn 13.8v into 9v, rather than trying to redesign the radio to natively run on 13.8v. I imagine a suitable circuit could be installed in the 18650 battery case on the side of the zBitx case, rather than putting such a heat source inside the case. ? Personally, I plan to use the battery powered option, but I do understand the desire to operate from a standardized 13.8v power source... ? Ken, N2VIP
0p8dlwo6@duck.com All Messages By This Member #116086 Amazon and AliExpress sell sealed buck boost regulators from 3 Amps to 30 Amps from about $5 to $50. They are pretty much bulletproof. Output voltage is chosen by the unit selected and input is from about 5 to 50 volts. Run your zBitx from a solar panel! Jay NM2M? toggle quoted message Show quoted text On Mon, Mar 3, 2025, 17:57 Ken N2VIP <ken_at_n2vip.org_0p8dlwo6@...> wrote: I think you'd be best served by using a regulator to turn 13.8v into 9v, rather than trying to redesign the radio to natively run on 13.8v. I imagine a suitable circuit could be installed in the 18650 battery case on the side of the zBitx case, rather than putting such a heat source inside the case. ? Personally, I plan to use the battery powered option, but I do understand the desire to operate from a standardized 13.8v power source... ? Ken, N2VIP
WK4DS All Messages By This Member #116088 Simpler and less efficient?was would be to solder some 6A10 rectifier diodes in series till you get the voltage down to what you need. I have used this in the past and it works. I am sure there are better options out there, but if you have diodes and time, this will work. A LM317 and a simple circuit around?it would probably be better, but most likey?cost more too. A bag of the 6A10 diodes are one 6 or 7$ on Amazon... David toggle quoted message Show quoted text On Mon, Mar 3, 2025 at 5:19?PM eb3am via <eb3am=rdp.cat@groups.io> wrote: Hello, we haven't received any zBitx yet and I'm already thinking about modifying something. I don't really like the fact that it goes to a maximum of 9v, and I would like to know how to modify the device to make it work at 13,8vdc like the rest of the radio devices that most of us have. I've looked at some components in the sBitx schematic and I think they are basically the same. So, what changes? I don't want to get more power (it wouldn't be bad to get 20w ;-) ) but I want to be able to have access to all the power sources I have. thanks... I'm anxiously awaiting my shipment from India... Jordi From Catalonia.
Gordon Gibby KX4Z All Messages By This Member #116089 开云体育 The diode solution won’t make any noise either! Those switching systems might make noise!!? toggle quoted message Show quoted text On Mar 3, 2025, at 20:14, WK4DS via groups.io <georgiaphotog@...> wrote: ? Simpler and less efficient?was would be to solder some 6A10 rectifier diodes in series till you get the voltage down to what you need. I have used this in the past and it works. I am sure there are better options out there, but if you have diodes and time, this will work. A LM317 and a simple circuit around?it would probably be better, but most likey?cost more too. A bag of the 6A10 diodes are one 6 or 7$ on Amazon... David On Mon, Mar 3, 2025 at 5:19?PM eb3am via <eb3am=rdp.cat@groups.io> wrote: Hello, we haven't received any zBitx yet and I'm already thinking about modifying something. I don't really like the fact that it goes to a maximum of 9v, and I would like to know how to modify the device to make it work at 13,8vdc like the rest of the radio devices that most of us have. I've looked at some components in the sBitx schematic and I think they are basically the same. So, what changes? I don't want to get more power (it wouldn't be bad to get 20w ;-) ) but I want to be able to have access to all the power sources I have. thanks... I'm anxiously awaiting my shipment from India... Jordi From Catalonia.

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