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1629 Magic Eye Tube Orientation

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Posted on July 5, 2017 at 06:03:25
Not Yet There
Audiophile

Posts: 538
Joined: April 8, 2006
 When powered, the 1629 Magic tube glows 3/4 of a full circle with the remaining 1/4 blank which response to change in power/signal.

My question is, by looking at the tube's internal, how does one tell which which part of the magic tube is the "blank" portion of the tube? I want to orient the tube so that the blank 1/4 "V" shape is in the 12 o'clock position.

 

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RE: 1629 Magic Eye Tube Orientation, posted on July 5, 2017 at 19:41:09
Alpha Al
Industry Professional

Posts: 2958
Location: N. Carolina
Joined: February 16, 2004
Contributor
  Since: December 3, 2015
 They are usually mounted in a clamp arrangement so you can rotate the tube, centering the image wherever you want it. Power it up and rotate as needed.

I know of no other way to tell without powering it up.

 

RE: 1629 Magic Eye Tube Orientation, posted on July 8, 2017 at 13:04:00
Triode_Kingdom
Audiophile

Posts: 10044
Location: Central Texas
Joined: September 24, 2006
 The deflection area should be in line with the socket key.

"The plane of the ray-control electrode passes through the tube axis and base key."

 

RE: 1629 Magic Eye Tube Orientation, posted on July 10, 2017 at 07:26:49
Not Yet There
Audiophile

Posts: 538
Joined: April 8, 2006
 Thanks you for the replies.

Just to clarify, when you say "The plane of the ray-control electrode passes through the tube axis and base key" do you mean that the top of the "shadow V" will be inline with the guide pin/socket key?

 

RE: 1629 Magic Eye Tube Orientation, posted on July 10, 2017 at 17:44:10
Triode_Kingdom
Audiophile

Posts: 10044
Location: Central Texas
Joined: September 24, 2006
 That's a quote from RCA, not me. The company is saying that the shadow will open up toward the key. Whether that's always true, and whether it holds for other brands, I don't know.



 

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