MOTM

The production pc boards for the '650 are in sets of 4 pc boards,
called an 'array'. Some folks refer to this as "step and repeat".

Here are the front and rear views of stuffed boards as I get
them from the subcontractor. The LEDs are not soldered, I do that
because it's very labor intensive and simply don't want to pay for it.

The individual boards have what's called 'scoring tabs' so that they
can be snapped apart.

www.synthtech.com/pix/m650_led_front.jpg

www.synthtech.com/pix/m650_led_back.jpg

10 points for the first person to correctly identify (in general) what
RV1 is and why it's on the board.

Paul S.

On Monday 13 March 2006 01:00, Paul Schreiber wrote:
> The production pc boards for the '650 are in sets of 4 pc
> boards, called an 'array'. Some folks refer to this as
> "step and repeat".
>
> Here are the front and rear views of stuffed boards as I
> get them from the subcontractor. The LEDs are not
> soldered, I do that because it's very labor intensive and
> simply don't want to pay for it.
>
> The individual boards have what's called 'scoring tabs'
> so that they can be snapped apart.

So you just 'break' them, like a cookie? Sounds scary. ;)
Anyway, impressive looking stuff. I wouldn't want to solder 
that. I see the VIAs are not soldered this time?

>
> www.synthtech.com/pix/m650_led_front.jpg
>
> www.synthtech.com/pix/m650_led_back.jpg
>
> 10 points for the first person to correctly identify (in
> general) what RV1 is and why it's on the board.

Ah, the bonus points are back. ;P
RV1 is small and gray, and it's on the board just to impress 
us with its smallness. ;)

- Robert

>> 10 points for the first person to correctly identify (in
>> general) what RV1 is and why it's on the board.
>
> Ah, the bonus points are back. ;P
> RV1 is small and gray, and it's on the board just to impress
> us with its smallness. ;)

I think the man has just won ten points :D

--mikes

RV1 is a varistor and those are usually there to protect from excessive
transient voltages.  Interesting...

-George

----- Original Message ----- 

From: "Paul Schreiber" <synth1@...>
To: "MOTM litserv" <motm@yahoogroups.com>
Sent: Sunday, March 12, 2006 7:00 PM
Subject: [motm] Pix of the MOTM-650 'array'


> The production pc boards for the '650 are in sets of 4 pc boards,
> called an 'array'. Some folks refer to this as "step and repeat".
>
> Here are the front and rear views of stuffed boards as I get
> them from the subcontractor. The LEDs are not soldered, I do that
> because it's very labor intensive and simply don't want to pay for it.
>
> The individual boards have what's called 'scoring tabs' so that they
> can be snapped apart.
>
> www.synthtech.com/pix/m650_led_front.jpg
>
> www.synthtech.com/pix/m650_led_back.jpg
>
> 10 points for the first person to correctly identify (in general) what
> RV1 is and why it's on the board.
>
> Paul S.

Ah, but the REAL question is what is RV2 for?

Mike

--- In motm@yahoogroups.com, Mike Estee <squeeker@...> wrote:

>
> >> 10 points for the first person to correctly identify (in
> >> general) what RV1 is and why it's on the board.
> >
> > Ah, the bonus points are back. ;P
> > RV1 is small and gray, and it's on the board just to impress
> > us with its smallness. ;)
> 
> I think the man has just won ten points :D
> 
> --mikes
>