Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 21 of 21
  1. #1

    Member Sales Rating: (9)

    Join Date
    Sep 2006
    Location
    Baltimore
    Posts
    2,487

    Default Belden 8245 Rg-55/U Coax

    Have a few pieces of this from some old test equipment I've taken apart, but can't find any info on it. Interested to see if it's good for anything audio related, like interconnects or input/output wiring on amps etc.

    Thoughts anyone?
    Wris****ch--->Crisco

  2. #2

    Member Sales Rating: (6)

    Join Date
    Feb 2002
    Location
    Rockledge, Florida
    Posts
    11,603

    Default

    Why not try it, and see?

    Speakers
    Carver Amazing Fronts
    CS400i Center
    RT800i's Rears
    Sub Paradigm Servo 15

    Electronics
    Conrad Johnson PV-5 pre-amp
    Parasound Halo A23
    Pioneer 84TXSi AVR
    Pioneer 79Avi DVD
    Sony CX400 CD changer
    Panasonic 42-PX60U Plasma
    WMC Win7 32bit HD DVR



  3. #3

    Member Sales Rating: (0)

    Join Date
    Dec 2012
    Location
    Cleveland, Ohio
    Posts
    367

    Default

    Belden 8245???. I have a 1985 Belden catalog and it goes 8240, 8241, 8242, *** 8254, 8255. No RG-55/U cables listed either.

  4. #4

    Member Sales Rating: (9)

    Join Date
    Sep 2006
    Location
    Baltimore
    Posts
    2,487

    Default

    Quote Originally Posted by disneyjoe7 View Post
    Why not try it, and see?
    Because I only have 4 12" pieces, and if it's some super special stuff I don't want to waste it.

    Only thing I've confirmed on the interweb is that it's obsolete/no longer being made. One site said it was the same as RG-233/U, but had a non-staining jacket.
    Wris****ch--->Crisco

  5. #5

    Member Sales Rating: (9)

    Join Date
    Sep 2006
    Location
    Baltimore
    Posts
    2,487

    Default

    Quote Originally Posted by Speedskater View Post
    Belden 8245???. I have a 1985 Belden catalog and it goes 8240, 8241, 8242, *** 8254, 8255. No RG-55/U cables listed either.
    Exactly. It's really old stuff, I found a newer Belden catalog online and I didn't see anything either.

    This stuff came out of some Hewlett Packard test equipment from the late '50s. Vacuum tube voltmeters and oscilloscopes, one of which had stickers from Los Alamos on it. All the parts in them are top notch, beautiful point to point wiring, so I'm assuming that the coax is good stuff as well.
    Wris****ch--->Crisco

  6. #6

    Member Sales Rating: (1)

    Join Date
    Aug 2009
    Location
    central Illinois
    Posts
    3,595

    Default

    I've used Belden RG62a it was good. Ken S. made some for us here, is it the air tube coax? I have used many coax Belden cables and most have been pretty stellar kept up with better name cables...YMMV

  7. #7
     Moderator 
    Member Sales Rating: (0)

    Join Date
    Jul 2001
    Location
    Polk Audio
    Posts
    3,850

    Default

    Accordiing to the military spec it is a single solid conductor that is silver covered copper with a dielectric of solid polyethylene and a tinned copper braid shield. The characteristic impedance is 53.5 Ohms and the capacitance is 28.5pF/foot. Definitely worth a try.
    Last edited by Kenneth Swauger; 11-12-2013 at 03:03 PM.

  8. #8
    Audiophile
    Member Sales Rating: (30)

    Join Date
    Mar 2006
    Location
    Seattle
    Posts
    11,185

    Default

    Can't find anything on it...

  9. #9

    Member Sales Rating: (0)

    Join Date
    Sep 2012
    Posts
    490

    Default

    As you know you have various cables a couple being indoor and outdoor cable. Outdoor cable can be aerial or underground. The aerial cable had a wire that ran along the side of it so that you could attach it to hangars or drop hooks, the underground did not and looked like the indoor cable. The thing about the outdoor cable that we used a "GOO" that helped seal any small nicks or cuts that outdoor cable was more susceptible to. The problem was this would get on your tv or vcr connetors that the cable was connected to. Before they got smart and changed the color from black to orange to indicate underground they used "U". I don't know if this is the case with your cable but if after you strip it you feel a sticky substance on it I wouldn't use it on my equipment.

  10. #10

    Member Sales Rating: (1)

    Join Date
    Aug 2009
    Location
    central Illinois
    Posts
    3,595

    Default

    Quote Originally Posted by monepolk View Post
    As you know you have various cables a couple being indoor and outdoor cable. Outdoor cable can be aerial or underground. The aerial cable had a wire that ran along the side of it so that you could attach it to hangars or drop hooks, the underground did not and looked like the indoor cable. The thing about the outdoor cable that we used a "GOO" that helped seal any small nicks or cuts that outdoor cable was more susceptible to. The problem was this would get on your tv or vcr connetors that the cable was connected to. Before they got smart and changed the color from black to orange to indicate underground they used "U". I don't know if this is the case with your cable but if after you strip it you feel a sticky substance on it I wouldn't use it on my equipment.
    My RG62A/u had neither.

    Ever cable installer I know always used the exterior wire as a ground....just sayin never knew the wire was for hanging...or is it

  11. #11

    Member Sales Rating: (9)

    Join Date
    Sep 2006
    Location
    Baltimore
    Posts
    2,487

    Default

    Quote Originally Posted by Kenneth Swauger View Post
    Accordiing to the military spec it is a single solid conductor that is silver covered copper with a dielectric of solid polyethylene and a tinned copper braid shield. The characteristic impedance is 53.5 Ohms and the capacitance is 28.5pF/foot. Definately worth a try.
    Thanks, Ken.

    So no good for digital coax but IC and input/output wiring I'd be ok?
    Wris****ch--->Crisco

  12. #12

    Member Sales Rating: (1)

    Join Date
    Aug 2009
    Location
    central Illinois
    Posts
    3,595

    Default

    Quote Originally Posted by strider View Post
    Thanks, Ken.

    So no good for digital coax but IC and input/output wiring I'd be ok?
    yes ^^^^^^ you need true 75ohm for digital...

  13. #13

    Member Sales Rating: (0)

    Join Date
    Sep 2012
    Posts
    490

    Default

    Quote Originally Posted by pitdogg2 View Post
    My RG62A/u had neither.

    Ever cable installer I know always used the exterior wire as a ground....just sayin never knew the wire was for hanging...or is it
    Not unless they've changed things since I was in the field. What are they grounding it to a tap on the pole instead of a ground rod??

  14. #14

    Member Sales Rating: (0)

    Join Date
    Sep 2012
    Posts
    490

    Default

    It has been 9 years since I've worked in the field, but hard to believe that copper is so cheap now that they would add it to the full length of a drop to use as a ground wire.

  15. #15

    Member Sales Rating: (1)

    Join Date
    Aug 2009
    Location
    central Illinois
    Posts
    3,595

    Default

    Quote Originally Posted by monepolk View Post
    Not unless they've changed things since I was in the field. What are they grounding it to a tap on the pole instead of a ground rod??
    ground to splitter and ground rod from box..I do not know what they did at the pole since they didn't let me up there...

    what you say does make some sense, because you also use the coax shield as ground also...I tossed all those monkey's to the curb went to Dish ran my own cable and have not had any trouble since.

  16. #16

    Member Sales Rating: (6)

    Join Date
    Feb 2002
    Location
    Rockledge, Florida
    Posts
    11,603

    Default

    Quote Originally Posted by Kenneth Swauger View Post
    Accordiing to the military spec it is a single solid conductor that is silver covered copper with a dielectric of solid polyethylene and a tinned copper braid shield. The characteristic impedance is 53.5 Ohms and the capacitance is 28.5pF/foot. Definately worth a try.
    I used some wire liked that copper with a silver cover and Loved IT. As everything Bass and Tweet...

    Speakers
    Carver Amazing Fronts
    CS400i Center
    RT800i's Rears
    Sub Paradigm Servo 15

    Electronics
    Conrad Johnson PV-5 pre-amp
    Parasound Halo A23
    Pioneer 84TXSi AVR
    Pioneer 79Avi DVD
    Sony CX400 CD changer
    Panasonic 42-PX60U Plasma
    WMC Win7 32bit HD DVR



  17. #17

    Member Sales Rating: (1)

    Join Date
    Aug 2009
    Location
    central Illinois
    Posts
    3,595

    Default

    Quote Originally Posted by monepolk View Post
    It has been 9 years since I've worked in the field, but hard to believe that copper is so cheap now that they would add it to the full length of a drop to use as a ground wire.
    its not because why else would most all cable manufacture's now use CCS (copper coated steel) It has been awhile since I've seen the exterior copper wire. You would of thought that a exterior steel cable would of worked better at hanging except for the rust. That is why I ran all my own wire with true Copper center conductor. I got tired of the rust on the connector ends from inferior crimp jobs...

  18. #18

    Member Sales Rating: (6)

    Join Date
    Feb 2002
    Location
    Rockledge, Florida
    Posts
    11,603

    Default

    Copper with a Silver coat is Mil wire which was used on ships, so I think some of this wire are around.

    Speakers
    Carver Amazing Fronts
    CS400i Center
    RT800i's Rears
    Sub Paradigm Servo 15

    Electronics
    Conrad Johnson PV-5 pre-amp
    Parasound Halo A23
    Pioneer 84TXSi AVR
    Pioneer 79Avi DVD
    Sony CX400 CD changer
    Panasonic 42-PX60U Plasma
    WMC Win7 32bit HD DVR



  19. #19

    Member Sales Rating: (0)

    Join Date
    Sep 2012
    Posts
    490

    Default

    Quote Originally Posted by pitdogg2 View Post
    ground to splitter and ground rod from box..I do not know what they did at the pole since they didn't let me up there...

    what you say does make some sense, because you also use the coax shield as ground also...I tossed all those monkey's to the curb went to Dish ran my own cable and have not had any trouble since.
    LOL
    We must be talking about different things although I have seen some strange things done in the field.

  20. #20

    Member Sales Rating: (0)

    Join Date
    Sep 2012
    Posts
    490

    Default

    I stand corrected apparently they now sell cable that also use the messenger as a ground.

    As I said it has been awhile.

  21. #21

    Member Sales Rating: (1)

    Join Date
    Aug 2009
    Location
    central Illinois
    Posts
    3,595

    Default

    shru thought i was loosing it.....^^^^^

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. SOLD TC-750 phono preamp plus Belden 89259 ICs
    By jawhog in forum For Sale (FS) Classifieds
    Replies: 5
    Last Post: 11-27-2009, 06:19 AM
  2. Belden 1694A Cable
    By schwarcw in forum Electronics
    Replies: 4
    Last Post: 08-21-2008, 07:10 AM
  3. 250' Belden 1505F RG59 cable
    By disneyjoe7 in forum Wanted (WTB) Classifieds
    Replies: 7
    Last Post: 01-29-2007, 09:27 AM
  4. Canare or Belden, which would you choose?
    By Codey in forum Basic Hookup/Wiring Questions
    Replies: 25
    Last Post: 12-01-2004, 10:11 PM
  5. Good amp for 6 speaker system?--2 coax front, 4 coax rear
    By Dave Mancuso in forum Car Audio & Electronics
    Replies: 4
    Last Post: 10-13-2003, 09:48 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts