Page 1 of 2 12 LastLast
Results 1 to 10 of 19

Thread: Has any one seen this diaphragm?

  1. #1
    Hostboard Member sanhanul's Avatar
    Join Date
    February 13th, 2012
    Posts
    87
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Has any one seen this diaphragm?

    I got again 604b but found it has equipped with a diaphragm that I never seen before.
    Can any one tell what is this?
    I has No of G5031 and no other No and it looks newly made.



    20160506_054313_resized.jpg20160506_054342_resized.jpg

  2. #2
    Senior Hostboard Member
    Has any one seen this diaphragm?


    Old Guy's Avatar
    Join Date
    June 23rd, 2003
    Posts
    6,330
    Follows
    0
    Following
    0
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    56 Post(s)

    Re: Has any one seen this diaphragm?

    Chinese IMHO
    Your neighbors called. They like your music.

  3. #3
    Senior Hostboard Member bowtie427ss's Avatar
    Join Date
    July 24th, 2006
    Location
    Rural NY
    Posts
    3,884
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    22 Post(s)

    Re: Has any one seen this diaphragm?

    I've never seen an import phragm with the molded "pillars" for the terminal screws, or lead in conductors that go through the hub in the exact way that traditional Altecs did.

    All of the imported phragms i've seen sandwich the lead-ins between the diaphragm material and the hub like late model Altecs and GPAs.

    I think the L1 and worn slotted screws are genuine.

    Did clever little fingers rebuild a cheap import phragm onto an old hub?

    I know there are people out there that use the old hubs for something.

    Just my .02....
    Last edited by bowtie427ss; May 5th, 2016 at 07:52 PM.
    Not all vegetables make good leaders.

  4. #4
    Senior Hostboard Member mah's Avatar
    Join Date
    May 28th, 2008
    Posts
    2,003
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1 Post(s)

    Re: Has any one seen this diaphragm?

    Opinion is only as valid as its verifiable supporting evidence.

  5. #5
    Senior Hostboard Member magnarc's Avatar
    Join Date
    March 7th, 2005
    Posts
    615
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: Has any one seen this diaphragm?

    It, or parts of it are early. The slot screws as opposed to phillips head. The aluminium coil. Might just be an early NOS?

    Early Altec stuff didn't always do part numbers well, and if its from a 604B, well thats 60+ years ago.

  6. #6
    Senior Hostboard Member
    Has any one seen this diaphragm?


    Old Guy's Avatar
    Join Date
    June 23rd, 2003
    Posts
    6,330
    Follows
    0
    Following
    0
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    56 Post(s)

    Re: Has any one seen this diaphragm?

    It didn't look old.Wonder if it's been in a box and recently put in?
    Your neighbors called. They like your music.

  7. #7
    Senior Hostboard Member magnarc's Avatar
    Join Date
    March 7th, 2005
    Posts
    615
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: Has any one seen this diaphragm?

    It could be. Or could be as suggested a clever fake.

    Some people do put things away for decades, and voila! very valuable NOS.

  8. #8
    Senior Hostboard Member GM's Avatar
    Join Date
    December 26th, 2002
    Location
    Chamblee, Ga.
    Posts
    4,930
    Follows
    0
    Following
    0
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    43 Post(s)

    Re: Has any one seen this diaphragm?

    Its very coarse finished dome reminds me of some cheap Radian? ones I tried in the '80s, but weren't much better sounding than Symbiotiks.

    GM
    Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

  9. #9
    Hostboard Member sanhanul's Avatar
    Join Date
    February 13th, 2012
    Posts
    87
    Follows
    0
    Following
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Re: Has any one seen this diaphragm?

    So,,,we are not sure whether this is a genuine or replica.

    I bought these 604b pair from a dealer for $3800 and he insists this is genuine. One woofer cone paper ruptured big time and repaired.
    I decided to buy this pair thinking if the diaphragms are genuine it is worth. But when thing like this, I am thinking to return.

    As I have a 604RWB, maybe later I can make it a pair.

    Hmm...what should I do?

  10. #10
    Senior Hostboard Member GM's Avatar
    Join Date
    December 26th, 2002
    Location
    Chamblee, Ga.
    Posts
    4,930
    Follows
    0
    Following
    0
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    43 Post(s)

    Re: Has any one seen this diaphragm?

    Dunno, only know that all the alum. OEM units I've seen had very smooth domes and this is typical of all the early units, with later ones being a bit more satin finished: http://soundup.ru/images/stories/archive/Classic/speakers/western-electric-713b-drivers-and-ks-12024-horn/western-electric-713b-12024-5.jpg

    GM
    Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

Page 1 of 2 12 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
This forum has been viewed: 20974416 times.