Portable tape recorder premium. These recorders
were made in 1959 in the U.S. by "Steelman Phonograph &
Radio CO., INC. MT. Vernon, NY Division of Herold Radio
& Electronics Corp.".
Dimensions 255 x 177 x 80 mm excluding
protrusions. Weight 2.7 kg without batteries. Motor and
amplifier are powered from different sets of batteries.
To power the motor uses seven batteries of 1,5 v AA for
power amplifier 6 such as batteries. Originally used
mercury batteries ZM9 (1,4 v), similar to modern tanks
alkaline batteries. In the tape used the coil with a
diameter of 3 inches, and tape-width 1/4 inch.
Interestingly, the tape moves to the right - left,
rather than vice versa, as is customary in most
recorders. On the top panel are two switches. One -
speed switch, 1, 7/8 - 3, 3/4 inches per second. Second -
control forward - backward. On the right side panel has
a volume control - the recording level on the left -
switch OFF - PLAY - RECORD. Next to the switch is a
button lock record. Wiring collected at 7-type germanium
transistors 2N405 manufactured by RCA. Transistors are
inserted in a miniature sockets, built directly into the
chassis of the recorder. Mounting all the electronics
mounted, printed circuit boards do not. The top panel is
a neon light indicating power supply. On the front panel
- neon lamp indicating the recording level and the input
and output connectors. Kinematics is mounted on a cast
aluminum alloy chassis. In general, the tape is very
much metal, and this is due to its great weight. The
whole construction is very robust and reliable, all
produced high quality, and looks very good. Especially a
stylish leather jacket is made with metal in the
I got a
tape recorder in good working condition complete with
original packaging box.
We also know that a similar tape "Pentron
Transitape" producing company "Pentron Electronic Corp.,
Chicago 24, Illinois USA". They are distinguished by
simplified design, and different voltage motor - 3 v.
Photos can be enlarged
Transistors and sockets
On the left the gearshift speeds
Wiring diagram and specification of the
tape Steelman Transitape
of the magazine
"Electronics Illustrated" ¹6
of $ 200.