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Old 12-16-2014, 09:17 AM
pas1971 pas1971 is offline
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Reel to reel echo

Hi All,
Wondering if there is a way to use the Technics RS1500 as an echo but somehow be able to assign it to only one channel at a time?
I thought if I used the headphone amp, but there is no way to create a feedback loop that way.
Am I missing something or is it only possible to use it as an effect on the master signal?
Thanks in advance.
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Old 12-17-2014, 11:04 AM
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daniels daniels is offline
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It all depends on what mixer you have.
Distortion is evil

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Old 12-19-2014, 02:51 PM
pas1971 pas1971 is offline
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ah yes sorry! Urei 1620 (original)
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Old 12-21-2014, 03:59 PM
jnkarrik jnkarrik is offline
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You really need a per-channel FX send to do what you are asking but....

This is really hackish and may sound horrible, but you could try using the headphone jack as your source like you said if you:

1. Route the output of the reel back into an open channel on the mixer (Aux A-E for instance so you could assign it to any aux channel)
2. Select the channel you wish to echo with the headphone source select.
3. Once you have captured the sample, quickly switch the headphone source to the echo channel so it regenerates.

Never tried this so dont know what you might get. I'm guessing you will saturate the tape pretty quickly unless you are really careful with the headphone level. Also not sure if this is good for the headphone amp, but maybe someone else will comment on that.
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Old 12-22-2014, 12:54 AM
Captainjr Captainjr is offline
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If you are doing what I think you are attempting to do then we did this over 40 years ago in radio with old RCA recorders. Providing the RS1500 has a separate monitor/playback head and from the quality of the machine I am guessing it does all you need to do is feed the playback signal to any assign aux on your UREI or BOZAK mixer. Yes you must watch not to saturate the tape or major distortion will evolve. The tape speed can be used to extend or shorten the delay time and we use to install a small capacitor value to tweak some of the bottom end away from the signal to cut down on distortion. Just do not crank the playback channel or all hell will break loose.

Last edited by Captainjr : 12-23-2014 at 08:41 PM.
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Old 01-15-2016, 01:03 PM
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DSA.audio DSA.audio is offline
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kinda neat -- not sure if there is a stereo version - or if that would even be required; maybe mono would be sufficient....

Doolittle & Seymour Associates
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