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Thread: Rare Phase Linear stuff

  1. #11
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    Halfbiass...Electron Herder and Backass Woof
    I think this thread needs to go to the PL HISTORY forum..
    Thoughts?
    taking something that's already good, and making it better...........and for the knowing smiles that cross their faces.......Nando-2011...

    "Silence cannot be Misquoted"--Lazarus Short-2012 "

    " I Just Collect Smiles Craig......Cheap Smiles!-----Fishoz-2017

    "anything can be done, it's finding the easiest way that's hard"-----Bobbysdad--2014

    " Synth percussion is deadly to children, house pets and shitty power supplies"---Stephen Evans 2014

    " You have not reached the point of diminishing returns, you've just ran out of money

    " The Pioneer U-24, unfortunately, is just too expensive and rare to find. That's why I have one."--Nando-2014

  2. #12
    Forum Veteran Northwinds's Avatar
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    Quote Originally Posted by laatsch55 View Post
    I think this thread needs to go to the PL HISTORY forum..
    Thoughts?
    It would seem to apply, man what an archive we have here!
    "I really can't begin to describe what happens at that frequency when you hit that SPL, but it's serious. We saw a mouse stagger out of a crack in the concrete floor and die"
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    Yweblwrs...
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    my eyes were forced shut by the air pressure change
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  3. #13
    Forum Veteran P.L.F.'s Avatar
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    I love BIG amplifiers!
    Quote Originally Posted by laatsch55 View Post
    I think this thread needs to go to the PL HISTORY forum..
    Thoughts?
    I believe it would be better indeed... Good idea!
    ----
    WOPL 1000? Careful, careful, careful with that axe, Eugene.....

  4. #14
    Forum Veteran P.L.F.'s Avatar
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    I love BIG amplifiers!
    ... Pictures copied from Ed's post at: http://forums.phxaudiotape.com/showt...k-Rack-handles. I wonder if the black PL400II earlier mentioned here was also built 'on demand' in Lynnwood?

    BTW; anyone to explain the 'Nestorovic mods'?
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    ----
    WOPL 1000? Careful, careful, careful with that axe, Eugene.....

  5. #15
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    Halfbiass...Electron Herder and Backass Woof
    The Milo mods were a different emitter resistors and Zoebel network caused a lot of stability problems. Any that came back to the factory were immediately changed back.
    taking something that's already good, and making it better...........and for the knowing smiles that cross their faces.......Nando-2011...

    "Silence cannot be Misquoted"--Lazarus Short-2012 "

    " I Just Collect Smiles Craig......Cheap Smiles!-----Fishoz-2017

    "anything can be done, it's finding the easiest way that's hard"-----Bobbysdad--2014

    " Synth percussion is deadly to children, house pets and shitty power supplies"---Stephen Evans 2014

    " You have not reached the point of diminishing returns, you've just ran out of money

    " The Pioneer U-24, unfortunately, is just too expensive and rare to find. That's why I have one."--Nando-2014

  6. #16
    Forum Veteran P.L.F.'s Avatar
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    I love BIG amplifiers!

    Phase Linear Blue Light 700 early version - anybody has seen them?

    Here is what I came across while reading some articles on Phase Linear amps modded for P.A. It seems they were some kind of early models of the first commercial 700 Series I. Has anybody got some more info or a picture of them? Ed maybe?

    [...] One of the first Phase Linear 700 amps, an early model with blue lights and only half the number of output transistors used in later units. [...]


    source: http://www.bostonaudiosociety.org/pd...17-05-9002.pdf

    [...] The first time I’d heard amps “sing” was with a Phase Linear Blue Light 700 in 1978. At that time I thought an amp would blow up if driven without a load, until Mike Justin told me this was not the case, and demonstrated with the VU meters flopping and clicking away. The Blue Light 700s could light up a 1000 watt Par 64 to near full intensity on music peaks (we never did try a 60 HZ tone) the light filament made a lot more noise than the amp, though. [...]

    source: http://forums.prosoundweb.com/index....111752.15;wap2
    ----
    WOPL 1000? Careful, careful, careful with that axe, Eugene.....

  7. #17
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    Halfbiass...Electron Herder and Backass Woof
    True Przem, the first 5 or 6 700's only had 16 output devices. Ed has some pics...
    taking something that's already good, and making it better...........and for the knowing smiles that cross their faces.......Nando-2011...

    "Silence cannot be Misquoted"--Lazarus Short-2012 "

    " I Just Collect Smiles Craig......Cheap Smiles!-----Fishoz-2017

    "anything can be done, it's finding the easiest way that's hard"-----Bobbysdad--2014

    " Synth percussion is deadly to children, house pets and shitty power supplies"---Stephen Evans 2014

    " You have not reached the point of diminishing returns, you've just ran out of money

    " The Pioneer U-24, unfortunately, is just too expensive and rare to find. That's why I have one."--Nando-2014

  8. #18

    Phase Linear 700 (Ultra Rare Bridge Amp)

    Here is a photo I took of Bob Carver this afternoon with my Phase Linear 700 bridge amp (made in 1970). This was the very first generation of the Phase Linear 700 amplifier. Approximately (3) were built. This is the only known survivor. No known schematic exists.
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  9. #19
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    Halfbiass...Electron Herder and Backass Woof
    Does he remember building it??
    taking something that's already good, and making it better...........and for the knowing smiles that cross their faces.......Nando-2011...

    "Silence cannot be Misquoted"--Lazarus Short-2012 "

    " I Just Collect Smiles Craig......Cheap Smiles!-----Fishoz-2017

    "anything can be done, it's finding the easiest way that's hard"-----Bobbysdad--2014

    " Synth percussion is deadly to children, house pets and shitty power supplies"---Stephen Evans 2014

    " You have not reached the point of diminishing returns, you've just ran out of money

    " The Pioneer U-24, unfortunately, is just too expensive and rare to find. That's why I have one."--Nando-2014

  10. #20

    Phase Linear 700 (Kelly DeYong) (Rare Second Generation Amp)

    Here is a photo I took of Bob Carver this afternoon with my Phase Linear 700 (made in 1970) (a.k.a. Kelly DeYong 700 since Kelly DeYong ended up with some of them in Vancouver, BC). This was the second generation of the Phase Linear 700 amplifier. It came out after the "bridge amp" and before the PL0171 series pc board in 1971. Exact production numbers of this amp are unknown. This is the only known survivor at the moment. What is also unique about this amplifier are trimpots in the protection circuit. I also have a schematic.

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