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About a work
D-3MKII.1
20cm back load phon D-3MKII was designed.
It was. The original unit was FE203Σ.
A 20cm unit is upgraded to FE208EΣ after that.
It is carrying out.
FE208EΣ is ES series which adopted ES corn and HP
oscillating board.
It is the unit which inherits technology.
It was made to revive using the unit only for these back load phons.
is D-3MKII.1.
Since it is small, of course, FE203Σ is a back load phon also to
FE208EΣ.
It carries out and is an effective cabinet.
An outside size is the width 282x height 950x depth of 430mm.
Three 21mm x plywood is used.
Description of D-3MKII.1 should look at basic lecture (5).
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Mr. Akira uchisato mail
The place which arranged the lumber room of a house, and FE203Σ
purchased a long time ago were found.
Although he wants to use this unit and to make a back load phon
what is good - it was the question of being
Honestly it was surprised. FE203sigma which cannot be got any
longer - it is uncanny
Although D-55 and D-58 were considered, there is only D-3MKII
in a magnetic size.
Most plans have not changed in D-3MKII.1.
FE203Σ which the inner Mr. Akira uchisato
D-3MKII.1 was cut with E-plywood cut service in this way.
The position of a terminal
A terminal is The attachment hole with use and this plan
about T100.
It has attached on the rear the opposite side.
However, this position is in order to attach super Tweeter.
It is hard to do. It attaches in the upper rear similarly to D-55
or D-58.
It becomes easy to attach super Tweeter.
The inner village has consented and he was also able to make
the cut satisfactory.
Used plywood 21mm of China plywood
The position of a terminal
The way of sound is entered in the internal structure / side board.
Front
Mail after Mr. iAkira uchisato completion
It is the inner village which is neglecting to write.
It completed D-3MkII.1 with 8 for hard struggle one month.
Still, since aging is not progressing at all, either, low-pitched
sound is with Bonn.
Inside loud sound has leaked from the phon opening on a grand
scale.
I think that adjustment will be applied, while aging progresses
gradually.
In addition, the tweeter was finished at a low price and set to
FT17H this time.
It is self-satisfied with whether it is the result so so for the
first its original work.
An inside / clear varnish applies twice and a paint is an outside
/ water paint (teak).
It applied 3 times and finished by two clear varnish coating further.
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It came out for the first time, and is surprised at such a
beautiful result
Aging will take three years from two years. It fits in with now
and comes out at these days.
It will change to a different puffy sound.
Although a classic is regarded as being heard with the amplifier
of a vacuum tube
If a speaker changes, the sound of a record will also change newly.
I think that music has new discovery.
Please continue to play an active part.
Thank you for having a photograph sent.
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