Waldorp Fridor Radio

Waldorp 48Z

The art of listening

"The Waldorp Radio Factories in The Hague have from the first aircraft, which it has already made in the year 1927, more and particular effort to the owners of Waldorp - the best devices and display the most modern. Will not be expanded by advertising her radio - devices gained a reputation among the public, to be something special with the new device, now may decorate your home, - think again Waldorp, - to have something special created may Waldorp the new device, which was named for its beautiful tone quality, - Melodiosa, - you give many beautiful and charming hours!"

brand	Waldorp
model	48Z "MELODIOSA"
waves	short, medium, long wave
year	1948
supply voltage	110-245v
number of tubes	6
tubes type	UCH21-UAF41-UAF41-UL41-UM4-UY41
UCH21	mixing tube
UAF41	MF reinforcing tube and detector diode
UAF41	LF reinforcing tube and the signal diode
UL41	power tube
UM4	tuning tube
UY41	single rectifier tube
scale lamps type	vl 8045 D-00 (x2) il 8073 D-00 (x4)
length	64.5 cm
width	20 cm
altitude	42 cm
weight	12.2 kg
SW	16m - 52.5m
MW	175m - 585m
LW	708m - 2000M

"It is important for you to take note of the instructions below, which are mainly for the commissioning of the unit must be carefully studied and, if possible, with the device should be preserved generally Waldorp superheterodyne type Melodiosa is a very sensitive receiver, which is in a position at a low power to maximum performance. In the design has been, in addition to the attainment of a high sensitivity, in particular, favorable closet contributes to a large extent. The low power consumption was achieved by the use of tubes with multiple functions.

Connections

Through a voltage selector the device to mains voltages of 245V 110,125,145,200,220 and can be enabled. This should be done for the first time, otherwise the unit will be seriously damaged. To this end they overtuige itself, or the indication of the voltage selector corresponds to the local mains voltage. This is not the case, then the rear wall must be removed. The cap of the voltage selector am now extended to approximately 1 cm and so far turned to the number of the desired voltage above it."

"The unit can be connected to the outdoor antenna and ground. These are, respectively, with jacks (2) and (3) connected to the device. Although the reception of the strong stations may already with a small indoor antenna, the properties of the device only come into their own when using the highest possible outdoor antenna with a length of 15 to 20 meters. To prevent malfunctions, the compound of the device with the antenna to keep as short as possible. The device must be placed at the antenna input. A proper ground connection is also important. Preferably one for use for this purpose the water pipe to which the ground line become connected by means of a ground terminal.

Switch on

This happened right by turning the equalizer (4), causing the scale illumination lamps are ignited. After the tubes have reached their operating temperature, the device is set to receive. The scale light up when the device is switched.

Tone Control

With the equalizer (4) the sound to your taste can be set and interferences to be suppressed to some extent. Rotated clockwise treble displayed stronger. By the button to the left to obtain a deeper tone. Can be further suppressed at the noise gramophone needle display electric gramophone.

At the back side of the radio you will find a two-pole connector (8) for the pickup. Switching radio gramophone on display is done with the band selector (5), become fully clockwise and the right indicator lights up on the station scale. The loudness become like the tone, with the same buttons arranged like the radio reception.

Additional speaker

An additional speaker can be connected to the jacks (9), which should be of low impedance type, IE the permanent magnetic speaker is connected directly to the mouthpiece puddle."