Pictures of your diy Pass amplifier

[fishski13]

i have some chassis work yet to be finished with the F5, but partnered with the B1, the combo is fantastic:

http://i23.photobucket.com/albums/b353/fishski13/F5/IMG_5404.jpg
http://i23.photobucket.com/albums/b353/fishski13/F5/IMG_5406.jpg
http://i23.photobucket.com/albums/b353/fishski13/F5/IMG_5395.jpg

132,000uF in the remote PS + 44,000uF in the amp proper. unloaded PS V = 26.7V.

 

[Puffin]

De-Liteful.....nearly

Lots of work still to do, but getting there.....slowly

An externally hosted image should be here but it was not working when we last tested it.

 

[The Space Egg Corp]

Let there be light ! (and sound).

Lots of work still to do, but getting there.....slowly

An externally hosted image should be here but it was not working when we last tested it.

Nice job Puffin.....

Like the multi-parallel reservoir caps.
Def the way to go I think.

Cheers Simon.....

 

[Vix]

Nice! There is one thing to be concerned, though. One row of capacitors is really close to the heatsink, and if it gets warm, capacitors get warm as well, and they don't like the heat. On the other hand, heatsinks look large enough, so maybe they won't get so hot after all.

 

[jleaman]

Some very nice stuff in here guys, great work keep it all up!

 

[Tripmaster]

Lots of work still to do, but getting there.....slowly

An externally hosted image should be here but it was not working when we last tested it.

It's delite-ful, it's delicious, it's de-lovely

 

[Puffin]

Nice job Puffin.....

Like the multi-parallel reservoir caps.
Def the way to go I think.

Cheers Simon.....

Simon. I have the same concerns. However space is at a premium, so I will have to see how it goes. I have very efficient speakers 97dB so it may not get too hot.

Rob.

 

[Puffin]

It's delite-ful, it's delicious, it's de-lovely

Why thang you kindly Sir.....

 

[Melon Head]

Simon. I have the same concerns. However space is at a premium, so I will have to see how it goes. I have very efficient speakers 97dB so it may not get too hot.

Rob.

It has more to do with biasing and Vds than the efficiency of your speakers.
This is a class A amp.

You still might be ok though, they are quite big heatsinks, and I am guessing the dissipation through each device is no more than 60W.

If it is too hot it wouldn't cost too much to buy some wider aluminium plate to make tha case wider. You can still use the narrower plate later on when you decide to buy another couple of heatsinks and build mono blocks.

 

[Puffin]

If it is too hot it wouldn't cost too much to buy some wider aluminium plate

Good idea thanh.

 

[Tripmaster]

Good idea thanh.

What!

After I lovingly sourced the alu sheets for you

 

[Melon Head]

Skeleton of 1st monoblock bolted together. Only another 6 cases to go.

"I'm on my way, from misery to happiness todayyyyy, aha aha aha aha"

 

[vdi_nenna]

Skeleton of 1st monoblock bolted together.

Very nice!! Very clean look. Like it!

 

[Melon Head]

thank you.

 

[Tripmaster]

Blimey...six cases! I bet that's going to set you back a few $$$

What will look impressive is a tower of amps

 

[raypalmer]

Where are you all getting these prodigious heatsinks???

 

[3GGG]

They look like Conrad Heatsinks, good for the Aussie DIY guys!
link: http://www.conradheatsinks.com/welcome.htm
Thanh what are you using for the top of the enclosure? Is it going to be recessed or sitting on top of the heatsinks and front panel?

 

[jleaman]

Skeleton of 1st monoblock bolted together. Only another 6 cases to go.

"I'm on my way, from misery to happiness todayyyyy, aha aha aha aha"

Very nice case!

Some day i need to get my Aleph's done, just need to find a case to buy!

 

[ma_coule]

Very nice case!

... just need to find a case to buy!

... or self production.
F.E. skeleton case building don't cost much and don't need extra skills.
OK, you need some time...

 

[Melon Head]

conrad heatsinks