New 500 series project: please vote

[Curran]

I think the answer to the genius question for Igor is YES!!!!!!!!!!!!! he is really making some wonderful stuff!!! If only i did not have to pay mortgae with the studio money I earn?!?!?!?!?!

 

[Igor]

Nope, this is my hobby
I think my profession is bad billiard player, as I loosed today 3/7 to my friend!

 

[RedNoise]

Nope, this is my hobby
I think my profession is bad billiard player, as I loosed today 3/7 to my friend!

;D ;D ;D did you hit the balls with your iron ??? ;D ;D ;D

 

[jsteiger]

Can I change my vote?

How about a graphic eq like the 8 band Aengus? I have never used/heard one nor seen one up close. Everyone who has...apparently loves them. I know Marc Alan Goodman has a pair.

Just a thought.

 

[Igor]

I remember, there was something like SPHERE graphic EQ with inductors,
please correct me if I wrong. Is this what you have in mind?

 

[mrclunk]

APSI made a cool graphic, one of my bosses favorite eq. Very rare.
Been trying to get hold of one for a while.

 

[desol]

There were mentions of these eq's, Aengus and APSI over at PSW a few times. The guys there didn't seem to favour them over the API's. That's all i've ever read of them.

http://recforums.prosoundweb.com/index.php/m/400389/8372/?srch=APSI#msg_400389

http://recforums.prosoundweb.com/index.php/m/423607/8372/?srch=apsi#msg_423607

 

[Denyle Guitars]

I have an APSI 559. It's nice but no magic bullet. Inside is a bunch of IC gyrators and a ic/transistor hybrid opamp. And of course those impossible to find switches.

 

[jsteiger]

I have a pair of the 559's also. They are kinda nasty in a good way. Nice for some elec guitars. Different freq. points from the 560 which is sometimes handy. Nasty but good in that UREI 530 way.

I thought the Aengus was a little bit of a different beast? Don't really know the circuit.

Maybe Marc will fill us in. I think he has both plus the Purple graphics and the 560's. I'm sure Ed knows to as he designed the inductor based graphic for Purple. Hey. Wait a minute....

 

[Igor]

A-ha...Is this like:
http://i251.photobucket.com/albums/gg291/diy33609/sphere_eq_9.jpg
http://i251.photobucket.com/albums/gg291/diy33609/sphere_resistors.jpg
?

 

[jsteiger]

A-ha...Is this like:

Yes! Now that would be a nice project! Probably better than the Aengus...as legend has it.

This is now my new vote Igor and I swear I will not change. 

 

[stereokillah]

 

[Igor]

Cool EQ. Where can we source these switches?

 

[haima]

Cool EQ. Where can we source these switches?

time machine?  ;D

my vote probably goes to the envelope shaper (TDzzz), preferably combined with a phase rotation/correction type thingo. with true bypass of each section.

PROS: relatively simple, and not too many knobs, switches or metering required!

 

[kante1603]

Hi Igor,

1176 would be amazing!!!

Udo.

 

[jsteiger]

Cool EQ. Where can we source these switches?

time machine?  ;D...

That would work for sure.    For the 51x racks?  ;D

They are out there I think. The indication numbers would be custom. I have found that Cherry makes a 16 position switch. I also found this from Digitran. http://www.digitran-switches.com/DigitalSwitches.htm

 

[haima]

time machine?  ;D...

That would work for sure.    For the 51x racks?  ;D

yeah, most time machine circuits i've seen run better on +/-24v - and don't even think about a DC-DC converter...
.
.
OH! you mean go back in time and convince API to make their card edges 18pin? .... good idea 

 

[12volts]

Cool EQ. Where can we source these switches?

Farnell On Line catalogue Pages 665 & 666.
Typical part number 118 0018

There are others, but they are expensive :O(

 

[okgb]

I'll take two of the time machines
figure you need one to get back
[ are they one use only ? ]
will they be modern or retro ?

 

[12volts]

Cool EQ. Where can we source these switches?

Farnell On Line catalogue Pages 665 & 666.
Typical part number 118 0018

There are others, but they are expensive :O(

OK much better pricing is available at Rapid Electronics. +44 (0)1206 751166

Part number 78-0850 et al. There are 4 or 5 switches to choose from.