convertor for prc 10

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halftracknut
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convertor for prc 10

Post by halftracknut » Thu Jul 20, 2006 10:14 am

Would anyone have a BA-511A convertor for a PRC10? If so how much? Are new batteries still available? thanks HTN......


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BA 511

Post by Radtech » Thu Jul 20, 2006 4:01 pm

Army Radio in UK has them.The problem with these units is that they require 30v to work properly( 2ea.15v batteries)they won't work properly with 24v.The BA 279 battery for the PRC 10 has been out of production sence 1979.
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PRC10

Post by halftracknut » Thu Jul 20, 2006 5:45 pm

So, What is a fella to do ? options? thanks for the help. HTN...

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PRC 10 battery

Post by Radtech » Thu Jul 20, 2006 6:06 pm

15ea.9v in series taped at +63 and for +135v.4ea D cells parallel for the +1.5v.4 D cells series for the 6v transmitt circut.+135 goes to pin D of battery plug,+67(actual voltage is 63v) is E,-135 is F,+1.5v is B,-1.5v and +6v is J,and -6v is H.
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PRC10

Post by halftracknut » Thu Jul 20, 2006 7:22 pm

I will give it a try,thanks for the help, my last batts. came from fair radio a few years back and did not last very long .It would be great if someone would make some new ones... HTN..

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YLG80
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Re: convertor for prc 10

Post by YLG80 » Thu Mar 17, 2022 12:10 am

Just an update about that old thread.
See here: https://www.youtube.com/watch?v=j6auTCrQPRw
Under the video window, there is a comment with a link to a « how to » build the Lithium-Ion battery packs.
In French but there self explaining photos.
Yves
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Tech3140
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Re: convertor for prc 10

Post by Tech3140 » Fri May 20, 2022 8:26 pm

I build my own batteries for my pro-10.
I use 8 D-Cell and a pair of 67.5 volt batteries.
But what I notice is that if you look at the schematic of the pro-8, 9, 10, you will notice that the minute you plug the battery to the radio, the radio’s tubes are on all the time. Even with the power switch turned off.
So now, I use 6 D-Cells for the 1.5 volt and 4 C-Cells for the -6 volt. Works well for me.

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YLG80
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Re: convertor for prc 10

Post by YLG80 » Fri May 20, 2022 10:55 pm

Tech3140 wrote:
Fri May 20, 2022 8:26 pm
I build my own batteries for my pro-10.
I use 8 D-Cell and a pair of 67.5 volt batteries.
But what I notice is that if you look at the schematic of the pro-8, 9, 10, you will notice that the minute you plug the battery to the radio, the radio’s tubes are on all the time. Even with the power switch turned off.
So now, I use 6 D-Cells for the 1.5 volt and 4 C-Cells for the -6 volt. Works well for me.
Thanks for the information.
I will have to double check if it works the same with the BA-511A.
I believe that this inverter is completely switched off by the PRC main switch
Yves
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Re: convertor for prc 10

Post by Tech3140 » Sat May 21, 2022 4:39 am

Yes, please do. Anyway, always remove your battery after you’re done with your radio for the day or operation.

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Re: convertor for prc 10

Post by YLG80 » Sat May 21, 2022 5:02 am

Tech3140 wrote:
Sat May 21, 2022 4:39 am
Yes, please do. Anyway, always remove your battery after you’re done with your radio for the day or operation.
I have just tested a PRC-10 powered by the BA-511A with my lithium-ion batteries and the power consumption is zero when switched OFF.
90mA when switched in Rx.
But as you wrote, it’s always a good precaution to remove the batteries when the radio is not used for a while.
Yves
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Re: convertor for prc 10

Post by Tech3140 » Sat May 21, 2022 7:16 am

That’s good to hear. Thanks for the update.

Got to look at the radio’s schematics again.
Think I missed something.

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Re: convertor for prc 10

Post by Tech3140 » Sat May 21, 2022 12:38 pm

Ok, I see where I got the info wrong.
It is the Common or A- and C+ That gets switch. Not the A+.

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Re: convertor for prc 10

Post by YLG80 » Sat May 21, 2022 11:00 pm

Tech3140 wrote:
Sat May 21, 2022 12:38 pm
Ok, I see where I got the info wrong.
It is the Common or A- and C+ That gets switch. Not the A+.
Thanks for the feedback. After checking the schematic, I thought that the problem was with some relay contacts sticking.
Yes A- is switched.
Yves
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serial 164794

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Re: convertor for prc 10

Post by Tech3140 » Sun May 22, 2022 8:34 am

Yes. So is the B-
Silly me. Nice inverter. Where can I find or get one of those???


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