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Amp Internals 2 |
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njw 
Old Croc 
Joined: 26 March 2010 Location: S. Wales Status: Offline Points: 2574 |
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 Posted: 18 February 2017 at 10:12pm |
All that for 400w (on paper
 )! Gotta love old school amps! |
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jbl_man
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Joined: 12 January 2005 Location: London. Status: Offline Points: 11155 |
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Posted: 18 February 2017 at 11:12pm |
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Lovely old thing. Each TO3 has got its own heatsink if you look closely.
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Be seeing you.
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fossil
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Joined: 17 March 2017 Status: Offline Points: 22 |
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Posted: 21 March 2017 at 12:36pm |
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For a man who's just discovered your collective secret that the exclusively ugly appearance of PA amps hides such stunning and beautiful internals, this forum is a wet dream. Fave so far is page 106 - the output inductors (Zobel network?) on the Crown XTi 6000 - surely not!!!! I am building my first ever amp based on the LM1875 chip and I strayed across this forum - at first I didn't quite believe my eyes. Words are just not enough. You have have to be congratulated on creating an absolute masterpiece! Praise, praise and more praise to you all.
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KingGwarn
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Joined: 19 March 2016 Location: Brighton Status: Offline Points: 193 |
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Posted: 21 March 2017 at 1:12pm |
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Not my photos...saw em on a Facebook post...but King Jammy's original bass amp!
"Was out for mantainance in a workshop in Kingston. Engineer said 8k and UK custom built."   |
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Soundman inna Brighton town
King Gwarn Sound System |
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coolboarder
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Joined: 23 June 2010 Location: Germany Status: Offline Points: 29 |
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Posted: 21 March 2017 at 1:32pm |
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Here comes an austin armstrong amp. - Does anybody know about austin armstrong amps ? It showed fault on the front panel. I replaced 2 resistors (the relatively big, skin color ones on the last picture). The fault was gone, but after a while it goes in fault mode again at medium levels. Is this the right place to discuss ?  -  -  -  Thank you, Fabian
Edited by coolboarder - 21 March 2017 at 1:36pm |
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Guests
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Posted: 21 March 2017 at 1:47pm |
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Fabian, you may get more of a response by starting a new topic in the Amp Forum. Regards
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simonp1100
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Joined: 01 September 2008 Location: Bristol Status: Offline Points: 1110 |
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Posted: 21 March 2017 at 2:10pm |
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Ahh, I smell C-Audio design.
 .If you have changed some of the FET's then the bias current will need re-adjusting, also the last picture does show one or two resistors brown (check these). Simon |
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coolboarder
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Joined: 23 June 2010 Location: Germany Status: Offline Points: 29 |
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Posted: 21 March 2017 at 2:19pm |
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Thank you guys. I will start a new topic in the amp forum
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taurusty
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Joined: 09 January 2007 Location: Jamaica Status: Offline Points: 473 |
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Posted: 22 March 2017 at 2:50am |
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[QUOTE=KingGwarn] Not my photos...saw em on a Facebook post...but King Jammy's original bass amp! That amp was one of 3 recently posted on FB as part of a NEW King Jammy's sound "coming" out soon. So you're saying 1 "gone" aready??! |
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nev23
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Joined: 08 September 2008 Location: Taunton, UK Status: Offline Points: 99 |
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Posted: 22 March 2017 at 10:26pm |
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PL9.0 with dead and under sized devices removed, ready for the correct devices to be fitted.
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suiluj
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Joined: 28 November 2007 Location: Phil/Singapore Status: Offline Points: 202 |
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Posted: 24 March 2017 at 10:19am |
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Home Built Military AMP 100, 2ohm stable
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BooM BASSTIK EleCtronics and Communications Engineer
Live in harmony with one another. Do not be proud, but be willing to associate with people of low position. Do not be conceited. |
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MattStolton
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Joined: 04 September 2010 Location: Walthamstow Status: Offline Points: 4234 |
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Posted: 24 March 2017 at 10:40am |
I guess AMP 100 is not 100W at 2 ohm? 100 Amps? Looks mental! What voltage rails is that thing running off?
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Matt Stolton - Technical Director (!!!) - Wilding Sound Ltd
"Sparkius metiretur vestra" - "Meter Your Mains" |
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Miles wrote:
