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Post pics of your builds.... - Page 647

post #9691 of 9701
Very nicely done.
post #9692 of 9701
Added balanced DC protection circuit and balanced pot to my SuSy Dynalo. Still working on the balanced inputs:
post #9693 of 9701

Something I have been listening to for at least a few years - my only rig and never an urge to change (after years of change up to this combo).  I told myself to post after I built transformer covers that match the base but I've never got around to it - hence the delay in post.  The circuit is dsavitsk's Electric Avenue - http://diy.ecpaudio.com/2008/03/SSS.html 

The Lundahl LL1660's are wired for 4.5:1 - this amp is specific for high impedance HP's - quite incredible sweetness, detail, and spaciousness with 600ohm DT-880's. 

 

 

post #9694 of 9701
Quote:
Originally Posted by macm75 View Post
 

Something I have been listening to for at least a few years - my only rig and never an urge to change (after years of change up to this combo).  I told myself to post after I built transformer covers that match the base but I've never got around to it - hence the delay in post.  The circuit is dsavitsk's Electric Avenue - http://diy.ecpaudio.com/2008/03/SSS.html 

The Lundahl LL1660's are wired for 4.5:1 - this amp is specific for high impedance HP's - quite incredible sweetness, detail, and spaciousness with 600ohm DT-880's. 

 

 

Nicely done...Get the matched Lundahl covers, then everything is super sweet!

 

post #9695 of 9701

Here a revised EHHA rev A, with some improvements , dc stopper added.

 

 

 

 

post #9696 of 9701

Just completed my 45 Direct Reactance Drive headphone amplifier from Jack Elliano design.

 

-Tube rectifier instead of diodes (as in the plan).

-DC filaments on 45s with Rod Coleman regulators.  AC filaments on drivers.

-Custom silver secondary output, switchable 25/50/300-ohm.

 

Runs a little hot due to high resistance (the 7.5K/10W resistor) to lift the 45s ~230V off from ground.  Separate PSU chassis helped to get the floor noise to dead black,  With 5U4GB, I'm getting 514VDC B+, probably the highest voltage I dare to play around with.  Sounds fantastic with LCD-3Fs.        

 

 

 

 

 


Edited by Sko0byDoo - 3/17/15 at 9:49am
post #9697 of 9701
Quote:
Originally Posted by Sko0byDoo View Post
 

Just completed my 45 Direct Reactance Drive headphone amplifier from Jack Elliano design.

Fantastic implementation - obviously a lot of sweat went into that amp.

post #9698 of 9701
Quote:
Originally Posted by Sko0byDoo View Post
 

Just completed my 45 Direct Reactance Drive headphone amplifier from Jack Elliano design.

 

Beautiful! Very nice interior layout. 45s are a very special tube, are they not? :) 

post #9699 of 9701

Very well done! Are we going to see that bad boy at Canjam?

post #9700 of 9701

Just thought that I would show off my recently finished Krell KSA 5 clone.  Need to finish biasing it but so far so good.  The wiring in the PSU is a mess :( because I didn't not plan it properly. Very excited though to listen to it.  Will post what I think tomorrow when it is up and running.  

 

 

 

post #9701 of 9701
Nice! Make sure you get those posted over at the other site. smily_headphones1.gif
Quote:
Originally Posted by Zashoomin View Post

Just thought that I would show off my recently finished Krell KSA 5 clone.  Need to finish biasing it but so far so good.  The wiring in the PSU is a mess frown.gif  because I didn't not plan it properly. Very excited though to listen to it.  Will post what I think tomorrow when it is up and running.  








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