I bought it from Elfa.se, the manufactorer is Teko in Italy:
http://www.teko.it/Eng/ENCLOSURES/frame.htm
The page works in frames so I couldnt link you directly:-( Its in the RF series, and called Dissipator. Check out the homepage for a local dealer.
Because it was easier to mount the hole thing on the bottom. I didnt try to use the amp, with only the chassis as a heatsink. I did use the sidepanels of the chassis as heatsink for the reg's though. Have a look.
Its running 290 mA. The regs are the 2 small perfboards at the rear.
Steen
BTW I dont think the chassis itself will do the heatsinking
It runs fairly warm.
Attachments
That situation sounds quite familiar to me
Just one more thing; The pinout of Q3 that digi01 uses, isnt the same as the ZTX450 and other normally used transistors! I used MPSA18 and had to twist the legs a bit Check the designation on the board and compare it to whatever transistor you will be using
Steen
hi steenoe,
Really nice building!what headphone are you using now?have you compare the difference of regulator psu and unregulator psu?
For the heatsink,I agree with steenoe.mine is a 3mm thickness,A4 paper size aluminium board for the chassis&heatsink.
to r_jik45,
I have run the Zen headamp with a couple of 35V unregulate power supply for dual mono,and a single 22V regulate psu for 2channel.I think the regulate psu make a preferable bass.
Z.
Really nice building!what headphone are you using now?have you compare the difference of regulator psu and unregulator psu?
For the heatsink,I agree with steenoe.mine is a 3mm thickness,A4 paper size aluminium board for the chassis&heatsink.
to r_jik45,
I have run the Zen headamp with a couple of 35V unregulate power supply for dual mono,and a single 22V regulate psu for 2channel.I think the regulate psu make a preferable bass.
Z.
I have a pair of Beyerdynamics DT880. I didnt compare the reg psu to an unregulated, since I had this regulated supply made allready. Just had to remove one Zener each side to get 24V.
The amp sounds fantastic. I didnt do any mods to make it fit the Beyer's. They are higher impedance than Grados, but that doesnt seem to be a big concern.
Steen
Hello Steenoe
thank you for your nice remarks.
Today about 200 amplifiers have been built, at least from the feedback I received straightly from the builders.
Sooner or later there will be an improved version of this amplifier, as soon as time will permit to develop some ideas.
Anyway... happy that you found it pleasant!
All the best from Italy
Marcello
to keypunch,
I have try to reply your mail,as though having some odd SPAM from Windows infected machinies filling your eMail box.
I have some boards available.at the same time I am going to make a pure balanced layout.
http://www.diyaudio.com/forums/showthread.php?postid=416657#post416657
for the shipping,yes it is still apply.$6USD,by air to
Canada or anywhere.
to tortello,
what do you think the balanced layout?thank you.
Z.
I have try to reply your mail,as though having some odd SPAM from Windows infected machinies filling your eMail box.
I have some boards available.at the same time I am going to make a pure balanced layout.
http://www.diyaudio.com/forums/showthread.php?postid=416657#post416657
for the shipping,yes it is still apply.$6USD,by air to
Canada or anywhere.
to tortello,
what do you think the balanced layout?thank you.
Z.
According to Digi01, i can provide this board again as a group buy, the board and/or kit, we are (me and him) plan to coperate to make this "on" again.
As usual, quantity in group buy is a matter
So if anybody here interested, mail me and we look and count is ok or no to proceed.
all the best,
a'af
As usual, quantity in group buy is a matter
So if anybody here interested, mail me and we look and count is ok or no to proceed.
all the best,
a'af
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