Sphere/Api 10 channel Sidecar .. New 900 EQs... New AUX Penthouse

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gar381

Well-known member
Joined
Jan 27, 2005
Messages
1,226
Location
Retired in (Amherst) Cleveland, Ohio
Hi Guys

I finally decided what to do with my Sphere Pieces/parts !

http://www.groupdiy.com/index.php?topic=44281.0
Badge72.jpg


Sphere_Save_Box72.jpg


I have decided to attempt to build a 10 channel Side Car
using my parts along with some goodies from ClassicAPI.
(What would we do without Jeff ?? :) )

The plan at this point is to build 10-M1200 pres to fill my 22224 backplane.

22224SwitchPCB_TOP72.jpg


and use Jeff's Double Bay Bundle for EQs and Comps.

For bus assignments I got a box of these guys

Buttons72.jpg


They are latching with Lit LED centers. I will use these
to control the bus assignment relays.

I got a box of old used AL39s with Buffer boards for metering.

AL39front72.jpg

AL39back72.jpg


At this point I realized I needed a lot more SPA-62 DOAs
Small_amp_top72.jpg


So I built some nice working proto clones.
Its nice that all the transistors are still being made
and are very available.

SPA62Dual72.jpg

SPA62_QuasShot272.jpg


These are ver2. The Production DOA Pcbs will Ver3. I need to re-space
a few parts, increase the size of the fingers and Gold plate them.

I will soon add all my reversed Schematics to a new Sphere Thread
in our new Group DIY "Technical Documents (Beta)"

Lots to do Lots to do.. Now to find Time ::)

As the build progresses over the next year or so I'll update this thread.

GARY
 
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What an exciting project!! A Sphere Eclipse A stuffed with 900 series eqs is my dream console. When is someone going to do a DIY version of the 900 eq??!! I think the the schematics for the SPA-62 is/was in the gmail account. If you haven't got it, I can email it to you - send me a pm. Keep us updated.

Best,

Ben
 
Thanks Guys..

Ben.. There are at least 3 SPA-62 versions that I have come accross
including the gmail account one.  I own 2 of them (see the picture above of
the real ones} and the gmail one is the third.
I designed my PCB to be able to stuff any of them except for the 313 lamps.
I will include all 3 when I do my Sphere doc dump
in our new Group DIY "Technical Documents (Beta)"
Thanks to peterc I got a good schmo of the 900 EQ.. Lots of
Kustom inductors.  A remake would be a BIG EXPENSIVE Clone Job :'( :'(

Neils.. These switch assemblys are from a old late Auditronics 900
parts desk as are the AL39s.  (This parts desk has NO frame or PSU
and No inductor based EQs) :'(

GARY

 
Nice. It's good to see such an effort.

Never heard of those SPA-62 opamps. Are there schematics floating around? I have been away for years...
 
Awesome Gary. Love the new preamp board. Kinda cool how they had the opamp just plopped right down on the main board like that.
 
Beginning the metal work.. :)
metelwork1_72.jpg


I am using ClassicAPIs GREAT console "erector set" parts. ;D ;D

http://classicapi.com/catalog/index.php?cPath=137_139
http://www.classicapi.com/catalog/images/gallery/500_console/metal/assemblies/single_bay_1_bucket/20_loaded.jpg

The Sphere modules are 6.5 inches long so I will have to
cut Some 6061 .125" stock for the side panels as the 500/51 series
stuff is 5.75" long but this will all work out fine.

Jeff is a GENIUS !!

GARY
 
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