¿ªÔÆÌåÓý

Wiring of power plug #bitx40


Ruarto
 

The photo on website with instructions doesnt show all 3 of the leads that are on the back of the power plug jack.

One is pos? ?one neg? ? ?whats the 3d?? ? ? It looks a bit different,? has a metal strip running to the center of the jack.

Or is it the neg?? ??

Thanks in advance,
Robin KE0QAH/AG

Newbie


 

Robin:?? Mike's ubitx.net, ubitx Wiki, and the files section of this group have help in wiring up the DC power jack.?? HF Signals also has help.? I would start with ubitx.net. Mike's site is outstanding!

By the way congratulations on passing your General class license.

Bob, W4RJP


Ruarto
 

¿ªÔÆÌåÓý

Thanks.?? Not sure yet how,when I will use it (General ticket) but Im legal when I do.?? I wanted to do this as a kid,? I was a novice at 12 in 1954.??

?

Im having troubles with shakes and such so this ubitx was probably not a good choice.? Plus Im not a programmer,? or a electronics whiz like so many of you guys on these lists are.?? But Im going to keep on trying to get it together.

?

So far the ubitx.net doesn¡¯t seem to address the power plug issue,? but I will keep looking.

?

Thanks again for the reply.

?

RG

?

Sent from for Windows 10

?

From: w4rjp
Sent: Tuesday, October 23, 2018 7:59 AM
To: [email protected]
Subject: Re: [BITX20] Wiring of power plug #bitx40

?

Robin:?? Mike's ubitx.net, ubitx Wiki, and the files section of this group have help in wiring up the DC power jack.?? HF Signals also has help.? I would start with ubitx.net. Mike's site is outstanding!

By the way congratulations on passing your General class license.

Bob, W4RJP

?


 

RG,

Let¡¯s see if I can walk you through this.? Let¡¯s call the piece you mount on the uBITX chassis the ¡®socket¡¯ and the piece you supply power from the ¡®plug¡¯.? The plug has 2 solder connection tabs.? The socket has 3 solder connection tabs.?? Plug the plug into the socket and get out your ohm meter/ continuity tester.

Find the 2 tabs on the socket that have continuity to the corresponding 2 tabs to the plug.? The third tab on the socket will not have continuity to the plug.? This is all you need for uBITX wireup.


If you remove the plug, you will find that 2 tabs on the socket have continuity.
This style of socket is often used to switch the power source from an internal battery to an external source.

?

As far as which tabs you select for +12V and ground, it¡¯s up to you as there is no universal standard. I strongly prefer and recommend the +12V on the inside connection of the plug, as to lessen the chance of a short when the plug is powered and not in the socket.? Most, but not all, are wired this way.

If you are still stuck after this, I can take some pictures to help out when get home.

Regards,

Gary


Ruarto
 

¿ªÔÆÌåÓý

Excellent,?? many thanks !!!!

?

?

?

Sent from for Windows 10

?

From: Gary Anderson
Sent: Tuesday, October 23, 2018 9:56 AM
To: [email protected]
Subject: Re: [BITX20] Wiring of power plug #bitx40

?

RG,

Let¡¯s see if I can walk you through this.? Let¡¯s call the piece you mount on the uBITX chassis the ¡®socket¡¯ and the piece you supply power from the ¡®plug¡¯.? The plug has 2 solder connection tabs.? The socket has 3 solder connection tabs.?? Plug the plug into the socket and get out your ohm meter/ continuity tester.

Find the 2 tabs on the socket that have continuity to the corresponding 2 tabs to the plug.? The third tab on the socket will not have continuity to the plug.? This is all you need for uBITX wireup.


If you remove the plug, you will find that 2 tabs on the socket have continuity.
This style of socket is often used to switch the power source from an internal battery to an external source.

?

As far as which tabs you select for +12V and ground, it¡¯s up to you as there is no universal standard. I strongly prefer and recommend the +12V on the inside connection of the plug, as to lessen the chance of a short when the plug is powered and not in the socket.? Most, but not all, are wired this way.

If you are still stuck after this, I can take some pictures to help out when get home.

Regards,

Gary

?


Billy Shepherd
 

I bet that Wiki is cool but it sure is nice to get the info LOL