Ross - Stereo Delay  [schematic]

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
analogguru
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Post by analogguru »

Here some guts:
https://cgi.ebay.com/Ross-Stereo-Delay-a ... dZViewItem

$90,-- seems to be a bargain for three SAD 1024A inside - socketed.
Looks really nice, anyone has more info ?

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Dirk_Hendrik
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Post by Dirk_Hendrik »

http://www.dirk-hendrik.com/temp/ross_delayschem.jpg

(and apart from a delay it's a crash course in switched capacitor filtering!)
Sorry. Plain out of planes.

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Post by junkwork »


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Post by Dirk_Hendrik »

They should be....

The one I've posted is the factory one.
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Post by Stephengiles »

It's my drawing of the factory one, drawn in Excel, so there may be mistakes :wink:

It was lasted saved on 12 Feb 2004.

analogguru
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Post by analogguru »

Thanks !!!! cool....

That´s how an analog-delay should look like ...with clock-dependent LowPass-Filters...yeah

Now we start with real electronics.... apart from simple fuzzboxes. :lol:

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Post by Dirk_Hendrik »

Stephengiles wrote:It's my drawing of the factory one, drawn in Excel, so there may be mistakes :wink:

It was lasted saved on 12 Feb 2004.
Which is quite a piece of reverse engineering. Respect!

@ AG,
You may be right with the clocked filters. However, the one I had on my bench 2 yrs ago and set up to the exact Ross specs after repair was far from the best analog delay's I've heard.
Sorry. Plain out of planes.

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Post by jonnyxjuturna »

I have one of these. It's certainly an interesting beast

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Post by DiscoFreq »

I just received a Ross Flanger a few days ago
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Post by rs »

Can anyone post some gut shots?
Thanks.

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Post by nawduder »

I'm making a simple repair on one of these monsters and am no good with schematics.
I found the problem: some of the wires between the board, the stereo switch, a pot and a 1/4" jack were knocked loose.
I need a photo that clearly illustrates which wires from the board go to which switch/pot/jack

I'd really appreciate it.
oh, and this is my first post

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Post by nawduder »

rs wrote:Can anyone post some gut shots?
Thanks.
This is what I'm looking for as well.

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Post by canbaz »

This delay is stereo, but there is a signal loss if we don't use it stereo. The original signal (not the delayed) is quieter and has much less low end. Using it stereo with a second amp solves the problem but i want to use it mono. How can i get rid off this signal loss? Any ideas ?

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Post by Dirk_Hendrik »

Got your PM.

Gotta look into this when I'm home again and not behind a laptop......
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Post by SPeter »

Hi all, sorry for reviving this old thread!
Reason:Found accidently found this gut on the net.
Web page(scroll down to see it):
http://blogs.myspace.com/mrbluetone
:)
Attachments
ROSS SREREO DELAY 1.jpg
ROSS SREREO DELAY.jpg

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Post by analogguru »

There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.

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Post by borislavgajic »

thanks for info........

please can someone post schematic again?......those links are not working :cry:

cheers

Boris

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Post by SPeter »


SPeter
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Post by SPeter »

Here they are!
Enjoy!
:D
Attachments
ROSS Stereo Delay 2.png
ROSS Stereo Delay.pdf
(58.66 KiB) Downloaded 122 times

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Post by pinkjimiphoton »

any chance of a reup? since the server issues a few months ago, a lot of the attachments are gone.
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