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Go Back   Head-Fi: Covering Headphones, Earphones and Portable Audio > Misc.-Category Forums > DIY (Do-It-Yourself) Discussions

Meier Audio CORDA HEADSIX & The Most Recent Sponsored Threads

Celebrating 6 years of Head-Fi, Meier Audio introduces the Limited Edition HEADSIX (portable headphone amp) Head-Fi Support Sales Action




 
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Old 10-21-2007, 11:57 PM   #2631 (permalink)
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Thought I'd share a few pix of my PS1 mod's. So far I've bypassed the output stage using Vampire CCC wire through two 3.3uF Clarity Caps, installed better RCA's, and remote-mounted the power supply in a cast aluminum case. I've also installed the receiver for a remote in the #2 memory card slot.










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Old 10-22-2007, 04:19 AM   #2632 (permalink)
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Originally Posted by naamanf View Post
Wow. Super nice work. I notice the Audio Technology theme on a couple of the amps. Fan of their speakers or an employee? Also looks like your into control line airplanes
YES - it looks like a McCoy redhead - now tell me where you know that. Controliners are a rare breed.
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Old 10-22-2007, 04:39 PM   #2633 (permalink)
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http://www.youtube.com/watch?v=nIdhCXydd-0

lights lights LIIIIGHTS!
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Old 10-22-2007, 04:45 PM   #2634 (permalink)
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Originally Posted by tomb View Post
YES - it looks like a McCoy redhead - now tell me where you know that. Controliners are a rare breed.
Hi tomd

You have right it's an old McCoy redhead from the sixties, I have become it and other old motors like Cox, Os Webra and a few more from my father. Are you into Controliners also?

Regards,
Torben
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Old 10-22-2007, 05:44 PM   #2635 (permalink)
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Originally Posted by Glowing-Tube View Post
Hi tomd

You have right it's an old McCoy redhead from the sixties, I have become it and other old motors like Cox, Os Webra and a few more from my father. Are you into Controliners also?

Regards,
Torben
Yes. I've flown combat and precision stunt since the mid-to-late '60's. I still have a couple of Fox Combat Specials, a Fox 35, etc.
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Old 10-22-2007, 06:50 PM   #2636 (permalink)
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Glowing-Tube, are you willing to share the schematics of your 6AS7G amp.
I have a few of those tubes lying around for ages, maybe its time I can put them to use.

Best regards
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Old 10-23-2007, 01:40 AM   #2637 (permalink)
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This is a followup to my post 2570. I followed PinkFloyd's advice on his site, www.rock-grotto.co.uk, and replaced the caps on my tube buffer. I replaced the electrolytics with Pana FM's (had to use FC's for the little guys), and the film caps with Wima's. I put one of each of the old ones on top of a replacement to show the difference in size.




Pink wasn't kidding: it does make one heck of a difference. So far, I'm very impressed. For no more than I have invested in this (driven by my modd'ed PS1), it's soundin' astoundin'.
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Old 10-23-2007, 03:08 PM   #2638 (permalink)
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Originally Posted by GeWa View Post
Glowing-Tube, are you willing to share the schematics of your 6AS7G amp.
I have a few of those tubes lying around for ages, maybe its time I can put them to use.

Best regards
Hi GeWa

Right now I'm not willing to share my schematics, because I will try to make a little production, just for fun. Perhaps I could be so lucky that I would be able to sell 10-50 of my amp. It have been up against the famous Rudistor RP-7, the sound of my amp was equal to the Rudistor, so I have hit the right design for my schematic.

Best regards,

Torben
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Old 10-23-2007, 03:18 PM   #2639 (permalink)
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Cased up little portable amp. OPA -> Diamond buffers.

last for around 8-9 hours on a single 170mAH 9V. Sounds pretty good.
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Old 10-24-2007, 01:22 AM   #2640 (permalink)
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My modest efforts at making CMoys

This was my first one. The two knobs are left and right volume because I couldn't find a double pot.



This is after I borrowed the case for my third amp




This is my second CMoy, I call it the DaftMoy. I found some rca's at radioshack that looked like a step up from their usual crap, so I gave them a try.



Here's the inside



Here's my latest, with 1/4 and 1/8 outputs, and rca and 1/8 inputs



and the inside



On the DaftMoy, I didn't use a switch between the 2 inputs, i just wired them in series. Any disadvantages to doing it this way? On the third amp, I did use switches for both the inputs and the outputs.
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