Pictures of your diy Pass amplifier

[Stanislav]

Aleph J looks great and sounds even better.

Beauty is in the eye (and ear) of the beer holder.

 

[Eslheadphone]

Beer holder . Very good, I will use that. The heatsinks are running comfortably warm. I am running 20 volts on the rails so heat dissipation is not an issue yet. I do plan on replacing the power transformer with an Antek AN-5218 500VA dual 18 volt. I might need to improved flow. The amp sounds really good, I might just leave it alone. You will see I went external on the speaker relays. I could not bring my self to running the speaker wire from the right amp board to the left side and back again to the right speaker binding posts. I also put the speaker hot lead on the common lead of the relay and the N.C. lead to ground, along with the N.O. going to the Red speaker post. In the event of a failure the relay should take the hit not the speaker. The speaker protector board makes the Alph J totally thump-less.

 

[Eslheadphone]

F5 Mono Block, a bit over the top. My power transformer is a dual 20 volt , so I used a capactince multiplier to drop the excess voltage. . Stone dead quiet.

 

[Eslheadphone]

Under side of my F5 Mono blocks

 

[Zen Mod]

Fugly!

 

[NicMac]

F5 Mono Block, a bit over the top.

Never seen anything like that before
A tube-like build style for a solid-state amp. Full votes for artistic impression!

 

[Eslheadphone]

The chassis started life as a base for a single ended SV811 amp that used Hammond outputs that proved to have a design flaw . I built the F5 and never turned back.

 

[EUVL]

> A tube-like build style for a solid-state amp.

It rang a bell :
http://www.quadesl.com/pdf/hpart.pdf


Patrick

 

[Eslheadphone]

The beauty of this construction method is you can replace the top piece of sheet metal , making changes easy. You can place components above and below the chassis thereby keeping wires short .

 

[Eric]

Those F5 monos made me think of Mark Finnis' tube-style a40 amp from a loooooong time ago. Mark helped me build my a40 about 16 years ago - this was my first DIY amp and it still sounds great! Nor sure if Mark is still active around here or not...

 

[2 picoDumbs]

The beauty of this construction method is you can replace the top piece of sheet metal , making changes easy. You can place components above and below the chassis thereby keeping wires short .

Nice one.

 

[Eslheadphone]

Built a ACA with the boards obtained at the Burning Amp 2017. Very nice amp.

 

[Eslheadphone]

Inside the aca

 

[Eslheadphone]

Inside the ACA

 

[Eslheadphone]

Back side of ACA

 

[JeffYoung]

Nice casework. I just built something similar for a dummy load, and was surprised at how long it took to cut and sand the aluminium, drill & tap all the holes, etc., etc.

 

[juma]

Under side of my F5 Mono blocks

Is that a toilet paper roll (testing a brown note) ?
Great job anyway !

 

[Carlp]

Gee, thanks. I'd never heard of a "brown note" and I wish I never had...

 

[Carlp]

Is that a toilet paper roll (testing a brown note) ?
Great job anyway !

Gee, thanks. I'd never heard of a "brown note" and I wish I never had...

 

[Eslheadphone]

You are seeing the top part of a paper towel roll. I can see where it looks like toilet paper. I spent way too much time cutting drilling and tapping. I bought a chassis from the DIY store for my Aleph J project.