Here it is: the JCQS-440 A.F.V. also known as the Wurlyscope.

[Wurly1]

Input amplifier tested and working as designed!
blue signal: input
yellow signal: output

next: control board assembly

 

[Sonik Wiz]

The first input amplifier is completed!

...too tired to test it tonight

Believe it or not, it was cheaper to buy already assembled Chinese relay module than buying the relays alone.

Cool indeed. But I only see one relay. What does the board actually switch & how does it do it?

 

[Wurly1]

Cool indeed. But I only see one relay. What does the board actually switch & how does it do it?

This is a power-on relay. It allow the use of a smaller low current switch on the main board to turn on and off the unit.

 

[~dave~~wave~]

Input amplifier tested and working as designed!
blue signal: input
yellow signal: output

next: control board assembly

One man's boring techno-babble is another man's...

... Gear Pornography!

You are inflaming my lust, but please keep sharing.

Doubtless that is your strategy, teasing and foreplay make the climax so much more intense.

 

[Sonik Wiz]

One man's boring techno-babble is another man's...

... Gear Pornography!

You are inflaming my lust, but please keep sharing.

Doubtless that is your strategy, teasing and foreplay make the climax so much more intense.

 

[doity]

One man's boring techno-babble is another man's...

... Gear Pornography!

You are inflaming my lust, but please keep sharing.

Doubtless that is your strategy, teasing and foreplay make the climax so much more intense.

Hey nowadays a man has to get his thrills where he can. Who am I to judge? Now back to my vast collection of shoehorn’s.......

 

[Wurly1]

Tomorrow i'll have more pictures...

 

[Wurly1]

Today's boring pictures: first batch of modules almost ready.

I decided to change the standard connector pins for gold-plated ones for better reliability.
They are still in transit do.

 

[Wurly1]

Today's techno-porn
First almost finished mk-II control board.
You know I have to proceed with caution assembling the first one as i must check, test and validate every aspect of it.
So far everything is up to my expectations.
still waiting for those gold plated connector pins...

 

[Wurly1]

Perfect alignment!
How cool is that?

 

[Sonik Wiz]

Perfect alignment!
How cool is that?

That's what my long ago girlfriend Jann said also too.

 

[Wurly1]

Good evening all!
I just want to make a point for the new comers to this thread.
I am not a company and i'm not doing this for money.
I'm just an enthusiast quad fan

 

[Wurly1]

New colour scheme coming to the mk-III

Few units will have an orange amber screen!

 

[Wurly1]

Meet the supersize JCQS-440 mk-III main pcb!

 

[Wurly1]

Hi All!
it is time to secure your mk-II of mk-III as half of them are already sold!

 

[Wurly1]

Hi all!
A little setback today.
I found out a major error on the latest version of the comparator modules.
I do not know how i did it but i managed to have the wrong pinout for the LM393 8 pin dip ic.
6 out of 8 pins were wrong...
Since all 60 purple pcbs were already made, i had to find a cheap solution.
A new adapter pcb was ordered today to patch the problem.

These pcbs will be soldered on the defective comparator pcbs to correct the defect.
Luckily there is only one LM393 ic on each board.
cost: only about 1$ per pcb.

So finally the real damage is only few weeks manufacture delay.

Otherwise, everything is on track!

 

[Wurly1]

I have some pictures to show you.
This is the first prototype of the mk-III model.

This is a temporary setup. The buttons will be different, plexyglass window and handles will be added and the mounting screws will be black steel torx type. The Red pcbs are the prototypes. The purple ones will be used as soon as i receive the patch pcbs.
Enjoy!

 

[Wurly1]

First mk-III videos.
This is the first time a hooked it to a sound system.
I uploaded very short videos showing the surround LEDs (the blue ones on this colour scheme) and the effect of the OL9 function which switch the sub signal from the surrounding (blue) LEDs to all channels.

I discovered the input amplifiers are clipping. That is why you do not see a very dynamic result.
I will solve this little problem quickly by reducing the gain.
Enjoy!

 

[Wurly1]

Good news!
The patch pcb are done and were shipped today!
I hope to have them by friday

 

[Wurly1]

Hi all!

Ever wonder what 60 programmable comparator boards look like?
Still missing the gold plated connector pins and the patch pcbs for the 8 pin ic.

This is the result of the last three day's of work.