Model ONE Build - S/N 0005 & 0006

[Hexis22]

Model ONE build of S/N 005 & 006 has commenced.

Looking forward to completing a 100% White Oak designed amp. It's obvious from inspecting the PCB designs and Chassis layout that significant thought went into this design and project from Joe.

Acquiring all the components for two 1000W amps requires significant of table space for staging parts. The picture below is only the beginning, I have another table just like it for just the housing and other mechanical components.

The power supply toroids are quite large and very heavy. Below are two main toroids (one per amp) flanking a 700 transformer.

 

[Hexis22]

First step is assembly of all the PCB assemblies using a PanaVise. I would not want to take on this level of project without this tool.

Below are pictures of all the completed assemblies, cleaned, inspected and ready for installation:

Power Control Board

Input Control Board (one of two):

Output Relay Board

Backplane Boards (one of two):

 

[laatsch55]

Simply wonderful stuff there Rembrandt...those amps will definately be heirlooms..

 

[George S.]

Supremely cool that the 700 backplanes are used.

 

[mlucitt]

Place the Transformer and Transformer Cover before you install the two Input Control Boards. There is a bit of an overlap.

 

[Hexis22]

Place the Transformer and Transformer Cover before you install the two Input Control Boards. There is a bit of an overlap.

Thank you for the heads up!

I was planning to assemble my way from the back of the chassis wall forward before mounting the large and heavy toroid with cover (very timely input).

 

[mlucitt]

I had to do everything twice on my first Model ONE build...
I am not sure but I think the Backplane Boards may not fit over the Thermostatic Switches due to the Spade Connectors. A trivial thing.
After I had mounted my Main Capacitor Clamps, Joe reminded me to have the screw heads facing outward, gaining access to the screws after installing the Transformer Cover would be very difficult.

 

[Hexis22]

I had to do everything twice on my first Model ONE build...
I am not sure but I think the Backplane Boards may not fit over the Thermostatic Switches due to the Spade Connectors. A trivial thing.
After I had mounted my Main Capacitor Clamps, Joe reminded me to have the screw heads facing outward, gaining access to the screws after installing the Transformer Cover would be very difficult.

It’s a tight fit, but small adjustments to the switch tabs before mounting and it’s good to go.

 

[mlucitt]

Good man. I never thought to twist the Switch Tabs...

 

[Gepetto]

Thank you for the heads up!

I was planning to assemble my way from the back of the chassis wall forward before mounting the large and heavy toroid with cover (very timely input).

The Transformer and cover should be one of the first thing to get assembled. Thus the red cart on the tools list. And the chassis sides should be one of the last items installed

 

[Hexis22]

The Transformer and cover should be one of the first thing to get assembled. Thus the red cart on the tools list. And the chassis sides should be one of the last items installed

I did take the side panels off shortly after that picture.

My thinking was to complete as much as possible on the back wall for ease of access before installing the transformer and cover.

The transformer is next…

Also, I wish I would have discovered building amps on a roll cart before this build… so much better than rotating a 700 around on the bench.

 

[Gepetto]

I did take the side panels off shortly after that picture.

My thinking was to complete as much as possible on the back wall for ease of access before installing the transformer and cover.

The transformer is next…

Also, I wish I would have discovered building amps on a roll cart before this build… so much better than rotating a 700 around on the bench.

Really difficult to do without a roll cart that allows you to get to anywhere you want to. That is a game changer

 

[J!m]

I figured the lazy Susan was implied…

 

[Hexis22]

Transformers, control boards, and caps all mounted. That is one HEAVY transformer!!

And yes, caps clamps oriented to allow access to screws for tightening.

 

[mlucitt]

You inspired me to pick up where I left off last week.

 

[Hexis22]

Also, configured the barrier strip before mounting on the transformer cover.

Removed all stock screws and placed jumpers in required locations.

 

[mlucitt]

SS hardware is so sexy in this amplifier...

 

[laatsch55]

Looking good!!

 

[Hexis22]

Transformers and most of the 12 AWG wiring completed.

The build is progressing very well without issue. As always from White Oak, this is one impressive design with very high quality components.

Now on to all the smaller interconnects.

 

[laatsch55]

Pretty impressive Eric...