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Anyone Remember These?
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AJ AUDIO View Drop Down
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Joined: 02 February 2017
Location: TORQUAY
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Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AJ AUDIO Quote  Post ReplyReply Direct Link To This Post Posted: 01 April 2020 at 2:08pm
AL250 From BI PAK 125W RMS into 4 ohms
single supply 50v to 80v

Quasi Baxandall output stage using 4 2N3055s
Big output coupling capacitor required

Repaired quite a few of these, I still have the circuit diagram, I believe I might have the remains of a PCB for one of these
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Robbo View Drop Down
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Joined: 05 December 2005
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Points: 4226 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Robbo Quote  Post ReplyReply Direct Link To This Post Posted: 01 April 2020 at 2:16pm
They also look a fair bit like the old Tuac modules to me.
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Points: 122 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 100 Volt-line Quote  Post ReplyReply Direct Link To This Post Posted: 01 April 2020 at 2:36pm
I remember some similar modules called Klifco, I think.
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Joined: 28 November 2012
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Points: 886 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BJtheDJ Quote  Post ReplyReply Direct Link To This Post Posted: 01 April 2020 at 2:59pm
Originally posted by Robbo Robbo wrote:

They also look a fair bit like the old Tuac modules to me.


+1  Tongue
It's a difficult choice, would you rather have:

A: A vegan son.
B: An OnlyFans daughter
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Earplug View Drop Down
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Joined: 03 January 2012
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Points: 7216 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 01 April 2020 at 3:08pm
Ok - this thread feels like it´s from an age ago! Sign of the times, I guess. How quickly everything has changed over here.  Ouch

And like so many things, this project got put on the back-burner and awaiting better times, if they ever come, but thanks for the info.  Thumbs Up





Edited by Earplug - 01 April 2020 at 3:11pm
Earplugs Are For Wimps!
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geez View Drop Down
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Joined: 02 October 2009
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Points: 139 		Post Options Post Options   Thanks (0) Thanks(0)   Quote geez Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2022 at 12:07pm
Wow, can't believe these showed up after all these years. Had 8 of them purchased from Direct Electronics (Barry)  opposite woodgrange park station late 70's early 80's era.

Used them to power 4x homemade Altec 816 copies loaded with McKenzie drivers, also from Direct Electronics.

Built a simple transistor inverter and run them in bridge mode, one bridged pair per cab. Think I was the only schoolkid around with a 1kw sound system. Remember it being scary loud but not that low.
You don't always get what you pay for, but you always pay for what you get.
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