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uBitx V6 - schematics

Pierre Guillot
 

Could a member explain these odd things I find on the schematics wiring of four transformers :
- T5 : wires 1 and 6 end in a x ;
- T6 : the same ;
- T8 : the same ;
- T11: the same with wires 3 and 4.

73 - Pierre - FK8IH?
 

Pierre,

It means that those windings are not connected.

HFSignals winds all transformers identically. In places where a bifilar (2 windings) is required
they leave the 3rd winding disconnected. It makes the manufacture parts list simpler.

Raj, vu2zap

At 09/04/2021, you wrote:
Could a member explain these odd things I find on the schematics wiring of four transformers :
- T5 : wires 1 and 6 end in a x ;
- T6 : the same ;
- T8 : the same ;
- T11: the same with wires 3 and 4.

73 - Pierre - FK8IH
 

In conventional schematics it is sometimes necessary to show connections
as an "x" or something similar.? This is because showing the connection
between two points might excessively complicate the drawing.? There should
be another "x" somewhere else on the drawing.? This is the continuation of
the wire or PC trace that you noticed was marked as "x".? In other words, the
two "x" are tied together.

Arv
_._


On Fri, Apr 9, 2021 at 1:44 AM Pierre Guillot <jb.gallauziaux@...> wrote:
Could a member explain these odd things I find on the schematics wiring of four transformers :
- T5 : wires 1 and 6 end in a x ;
- T6 : the same ;
- T8 : the same ;
- T11: the same with wires 3 and 4.

73 - Pierre - FK8IH?

 

In this case, an "x" means no connection.

In the uBitx schematics, the remote connections that Arv describes?
are drawn as text inside a box with a pointy end.
An example of this is "CLK2" in the upper left of the schematic.

Jerry, KE7ER


On Fri, Apr 9, 2021 at 09:46 AM, Arv Evans wrote:
In conventional schematics it is sometimes necessary to show connections
as an "x" or something similar.? This is because showing the connection
between two points might excessively complicate the drawing.? There should
be another "x" somewhere else on the drawing.? This is the continuation of
the wire or PC trace that you noticed was marked as "x".? In other words, the
two "x" are tied together.
?
Arv
_._
?
Hide quoted text

?


On Fri, Apr 9, 2021 at 1:44 AM Pierre Guillot <jb.gallauziaux@...> wrote:
Could a member explain these odd things I find on the schematics wiring of four transformers :
- T5 : wires 1 and 6 end in a x ;
- T6 : the same ;
- T8 : the same ;
- T11: the same with wires 3 and 4.

73 - Pierre - FK8IH?
 

Correction to earlier post.? It does appear that on the uBITX schematics,
some leads are marked with an "x", but as Raj has said, they are not
connected to anything else.

Arv
_._


On Fri, Apr 9, 2021 at 10:46 AM Arv Evans via <arvid.evans=[email protected]> wrote:
In conventional schematics it is sometimes necessary to show connections
as an "x" or something similar.? This is because showing the connection
between two points might excessively complicate the drawing.? There should
be another "x" somewhere else on the drawing.? This is the continuation of
the wire or PC trace that you noticed was marked as "x".? In other words, the
two "x" are tied together.

Arv
_._


On Fri, Apr 9, 2021 at 1:44 AM Pierre Guillot <jb.gallauziaux@...> wrote:
Could a member explain these odd things I find on the schematics wiring of four transformers :
- T5 : wires 1 and 6 end in a x ;
- T6 : the same ;
- T8 : the same ;
- T11: the same with wires 3 and 4.

73 - Pierre - FK8IH?

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