Clansman PRC 320 Battery connections - UK Vintage Radio Repair and Restoration Discussion Forum

unixmanuk · 20th Jan 2016, 12:47 pm

Hi All,

Simple question for someone - I'd like to know the polarity of the 2 battery studs on the side of a PRC 320, as there is no obvious markings, and I don't have a suitable battery to refer to.

I'd like to hook up a 24V external supply to test the unit.

Cheers,

Herald1360 · 20th Jan 2016, 1:19 pm

Any help?

unixmanuk · 20th Jan 2016, 2:27 pm

Yes, thanks for that Chris - transposing the picture suggests that +ve is the lower of the two studs on the front side of the unit.

I haven't metered it out yet, as I've only just got it, but I'd imagine that -ve would be grounded to the case anyway.

Cheers,

ex seismic · 20th Jan 2016, 2:47 pm

If you look for it, the 320 itself is marked with polarity. It is on one of the battery locating studs.

gmb

unixmanuk · 20th Jan 2016, 3:24 pm

I couldn't see anything, but I'll certainly take another look. My eyesight is, unfortunately, not what it was...

ex seismic · 20th Jan 2016, 7:33 pm

Yours won't be highlighted in red because I do that to avoid mistakes!

Gordon
G7KNS

unixmanuk · 21st Jan 2016, 12:07 pm

Hi Gordon,

Thanks for that - I wasn't looking at the lumps of metal on either side of the tags! - probably for something more subtle...

Cheers,

20th Jan 2016, 12:47 pm	#1
unixmanuk Pentode Join Date: Jan 2012 Location: Worcester, Worcs. UK. Posts: 112	Clansman PRC 320 Battery connections Hi All, Simple question for someone - I'd like to know the polarity of the 2 battery studs on the side of a PRC 320, as there is no obvious markings, and I don't have a suitable battery to refer to. I'd like to hook up a 24V external supply to test the unit. Cheers, __________________ John

20th Jan 2016, 1:19 pm	#2
Herald1360 Dekatron Join Date: Feb 2007 Location: Leominster, Herefordshire, UK. Posts: 16,536	Re: Clansman PRC 320 Battery connections Any help? Attached Thumbnails __________________ ....__________ ....\|____\|\|__\|__\_____ .=.\| _---\__\|__\|_---_\|. .........O..Chris....O

20th Jan 2016, 2:27 pm	#3
unixmanuk Pentode Join Date: Jan 2012 Location: Worcester, Worcs. UK. Posts: 112	Re: Clansman PRC 320 Battery connections Yes, thanks for that Chris - transposing the picture suggests that +ve is the lower of the two studs on the front side of the unit. I haven't metered it out yet, as I've only just got it, but I'd imagine that -ve would be grounded to the case anyway. Cheers, __________________ John

20th Jan 2016, 2:47 pm	#4
ex seismic Heptode Join Date: Sep 2009 Location: Tonbridge, Kent, UK. Posts: 689	Re: Clansman PRC 320 Battery connections If you look for it, the 320 itself is marked with polarity. It is on one of the battery locating studs. gmb

20th Jan 2016, 3:24 pm	#5
unixmanuk Pentode Join Date: Jan 2012 Location: Worcester, Worcs. UK. Posts: 112	Re: Clansman PRC 320 Battery connections I couldn't see anything, but I'll certainly take another look. My eyesight is, unfortunately, not what it was... __________________ John

20th Jan 2016, 7:33 pm	#6
ex seismic Heptode Join Date: Sep 2009 Location: Tonbridge, Kent, UK. Posts: 689	Re: Clansman PRC 320 Battery connections Yours won't be highlighted in red because I do that to avoid mistakes! Gordon G7KNS Attached Thumbnails

21st Jan 2016, 12:07 pm	#7
unixmanuk Pentode Join Date: Jan 2012 Location: Worcester, Worcs. UK. Posts: 112	Re: Clansman PRC 320 Battery connections Hi Gordon, Thanks for that - I wasn't looking at the lumps of metal on either side of the tags! - probably for something more subtle... Cheers, __________________ John