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Old 13th October 2008, 11:38 AM   #1
prorms is offline prorms  United States
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Default need echo circuit schematic does not have an ic in it

need echo circuit schematic does not have an ic in it .is it possible
build an echo circuit that does not have an intergrated circuit or chip in in it iam not talking about tube echo unit
just wondering realy like to hear idea's
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Old 13th October 2008, 12:06 PM   #2
acid_k2 is offline acid_k2  Italy
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You can use a tape delay...
If you don't want tubes, use transistors for it...
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Old 13th October 2008, 02:29 PM   #3
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use a length of garden hose with a pair of transducers on each end
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Old 13th October 2008, 03:17 PM   #4
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Default Hi!

Use, endless tape echo!

For mechanics the best mehanism is 8 track player from last century!!!!!!

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Old 13th October 2008, 03:56 PM   #5
wg_ski is offline wg_ski  United States
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Spring-loaded reverb tank. Parts Express has some in their latest flyer - about $20. It will take a single transistor to drive, and one to receive.
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Old 13th October 2008, 03:59 PM   #6
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Default Hi!

Quote:
Originally posted by wg_ski
Spring-loaded reverb tank. Parts Express has some in their latest flyer - about $20. It will take a single transistor to drive, and one to receive.
Is not the same Echo VS Spring-loaded reverb!

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Old 13th October 2008, 04:43 PM   #7
acid_k2 is offline acid_k2  Italy
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Quote:
Originally posted by jackinnj
use a length of garden hose with a pair of transducers on each end
Yes... at 340m/s, you need 68 meters of garden hose for 0.2 sec. delay...



with some valves you could also have a great variable delay echo...


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Old 14th October 2008, 01:17 PM   #8
Limhes is offline Limhes  Orkney Islands
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Quote:
Originally posted by acid_k2
with some valves you could also have a great variable delay echo...
Could you elaborate on this?
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Old 14th October 2008, 05:50 PM   #9
acid_k2 is offline acid_k2  Italy
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it's a joke....

schematic attached...
Attached Images
File Type: jpg echo.jpg (54.7 KB, 229 views)
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Old 14th October 2008, 07:15 PM   #10
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How about a 1024-stage BBD using tubes?

More seriously though, many studios used to use 'plate echo' devices - which have quite an OK 'sound', but they take up a LOT of space.
Essentially what you need is a large sheet of thin sheet metal - like 6x6 feet.

I'd agree, tape is the easiers & cheapest. Cassette not easy to modify, but an old 3-head reel-to-reel is a pretty much ready made echo unit.
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