Gray Audograph model D6. Portable
Recorder - phonograph powered by an AC voltage of 115 v.
Made in the USA in the late 50's by "Gray Manufacturing company" Hartford,
Connecticut, USA. Recording is made on plastic floppy
disks blue 15 cm On one side of the disc, you can make
12 minutes of recording time at a frequency voltage of
50 Hz. In the U.S., which used the frequency of 60 Hz,
such a drive fit only 10 minutes of recording. This is
due to the fact that the recorder used AC motor, the
speed of which depends on the frequency of the supply
voltage.Dimensions recorder 220 x 171 x 65 mm. Weight
2,6 kg. Circuit
collected in three low-power transistor type 2N214 (1
pc.), 2N228 (2 pcs.), And a power transistor type 2N257.
Mechanics of the recorder is very difficult, and made
very high quality. She was fully serviceable, if not
take into account the lack of a rubber belt. After the
grease and install a new rubber belt mechanics works
like new. The main difference between this recorder from
the most similar to that recording and reproducing head
is fixed, and moves the drive on which you are
recording. During the work, he moved from center to edge
with worm mechanism. When recording (pressing TALK)
recording head is lowered and the needle is pressed
against the disk. If you're playing (pressing LISTEN)
falls heads. Recording head has a small freedom of
movement in the horizontal plane (approximately 2 mm) to
compensate for the mismatch of heads. Needles of both
heads were in good working order. To
repair the electronics necessary to replace dried-up
electrolytic capacitors. After the repair works as new.
As a speaker uses a microphone (Dynamic,
230 ohms) with remote activation
key. The sound is loud and good quality. Since the
recorder used AC motor, the problems with the
instability is no speed. Also included recorder has foot
pedal controls. A microphone and a pedal connected to
one terminal of the recorder, but less pedal jack
microphone jack, and when it is connected, open access
to the round connector for connecting an external
speaker or amplifier. On the front face panel are volume
controls (left) and the recording level (right), and the
right of the drive wheel is located, through which you
can move the drive forward - backward to install it in
the desired position.
Demo
In the photo on the right foot pedal
is visible.
Photos can be enlarged
Recording made from center to edge. The photo on the
left to start recording in the photo on the right - the
end.
In the photo on the
left arrow points to the writing head in the photo on
the right - on reproducing heads.
Mechanics of the
recorder is very difficult, and made very high quality.
The photo on the left see a new belt made
of black rubber. In the photo on the right arrow points
to the solenoid control.
Microphone button remote included. The
key is the lock button. The microphone also combines the
function of the speaker. The sound this gives a loud and
high quality.
In the photo on the right foot pedal
control.
The photo on the left to
connect the microphone. The photo on the right - jack
foot pedal. It is available round connector for
connecting an external speaker or amplifier.
Included with the recorder I got a box of
new discs for recording.
