PHILIPS Type 2637 Radioplayer
ALL-ELECTRIC
Radio in baquelite cabinet, heptagonal form, manufactured in 1931, with the speaker's of oxidized brass screen and red fabric, is very sought by its strange and unique appearance.
This was the first radio of Philips to have the speaker placed inside in the cabinet, (the radios previous to this model possessed external speaker , known in Brazil as " Chinese Hat ", and in its origin country as " pancake ", working more or less in the same way that the heads of reproduction of the old gramophones).
The radios of Philips after this model were already thrown with speakers of permanent magnet, a technological innovation for the time because most of the makers of radio in the world started to use (after the era of the "Loud-speaker") speaker of " Field " that consisted of an electromagnet to form the magnetic field.
This radio is in great conservation state and operation, with all its original items of factory.
Tunes in two waves of 200 to 450 meters and of 400 to 950 meters with gauged dial of 0 to 180 degrees.
Tubes: E424, C443, E442, 506.
Philips in everything accompanied the new norms established in world conventions. While most of the industries used the term " CYCLES " as unit of frequency, she already used in 1931, the new "HZ " of HERTZ in all its line of radios.
The syntony of this radio, as well as many radios of this time were a little complicated, because its circuit was for "RTF", not possessing coil of " IF ".
Firstly, is chosen the frequency strip to be captured. Later, was necessary to act in the syntony capacitor to arrive the wanted station, adjust the beating of the frequencies place and received for zero in another control and adjust the entrance joining in a third control, retouching the previous fittings for better result. Finally, he acted in volume control for better audition. With that whole maneuver, was act in 5 knobs!.
In spite of everything, it possesses a wonderful sound.
Possesses two keys, a frontal for On / Off and another in the back part to turn off the speaker, when used external speaker. It also possesses entrance for record player in the back part.
PHILIPS Mod 938 A
Manufactured in 1933, it was disclosed at that time as being the first domestic receiver of short waves, ( it receives short and long waves of 15 to 2000 meters ).The adjustment of the stations is in " RTF " form, ( he doesn't have IF ).
The cabinet of this radio is composed of two parts: the front panel of baquelite and the lateral of Ebonite, a material that used the same resin of the baquelite, but that was manufactured in foils a little more consistent than the cardboard ( the rigidity depended on the thickness of the foil ).
At that time, the makers of radios in the world, made experiences to reduce the cost of production processes, and they used the most several materials in the making of the cabinets. This way, we can find radios with cabinet of Baquelite, Philite, Plascom, Galalite, Ebonite, Arbolite, Paxolin, Perspex, Vanherite, Pergamoide, Metal, Plastic, Wood, etç. The one that they wanted was to flee of the wood, because besides requesting hand of specialized work for its work, and was difficult to give certain forms to the piece of furniture, forms these influenced by the tendencies " ART DECO " and " Modern Art " requested by the consumers of the time.
Tubes: Two E438, C453, 1823, AC of 105 to 240 volts, 7 antenna entrances, (one for each frequency strip) entrance for record player and exit for external Loud-speaker of high impedance ( high tension circulates for the coil ).
PHILIPS Type 2511 / Chinese Hat
Radio manufactured in 1929, the adjustment of the stations is in " RTF " form, ( he doesn't have IF ).Conditioned in cabinet composed of metal frame with closing of plates of Ebonite that reminds wood.
AC of 220 volts, ( the identical model 2510 to this, it is to batteries )
Tubes: two E442, E415, C443, 506K
Together with this type of radio, several types of Loud-speakers were used, among them this shown in the photo, more popularly well-known as " Chinese " hat
Tunes in medium waves and its dial is gauged in degrees.
PHILIPS Mod: 2421
Radio manufactured in 1930 not very well-known ( according to comments, it is the first radio of Philips with cabinet of moulded baquelite ).The adjustment of the stations is in " RTF " form, ( he doesn't have IF ), AC of 105 to 240 volts.
Tubes: E424, C443 and 505.
It possesses 3 entrances for antenna, entrance for record player and exit for Loud-speaker of high impedance. It tunes in medium waves and its dial is gauged in degrees.
Philips type 2516
Radio manufactured in 1928, conditioned in cabinet of colored metal (this, so much handle, already lost good part of the painting).The adjustment of the stations is in " RTF " form, ( he doesn't have IF ), AC of 105 to 240 volts.
The circuit is composed of 3 tubes: E424, C443 and 505.
It has inside a beautiful system of variation of the syntony coils.
Tunes in medium waves and have dial gauged in degrees with a window in the superior part of the cabinet.
EKCO A22
Projected originally by architect Wells Coates of England, the round EKCO radio is the form most popular wireless cabinet shape of all times.It was in production until the end of 1946 in "walnut" or black bakelit, with either a "florentine bronze" or chrome loud-speaker surround. The dial of " PERSPEX ", had a internal travelling cursor that followed around the circumference of the cabinet, being only visible when the radio is on.
It was the culmination of twelve years of production, fourteen years of thought and five quite different designs, and resulted in the most logically designed EKCO that brought together both great form and faultless function.
Tunes in OM, of 550 kHz to 1500 kHz, OC1 of 8,5 mHz at 21,5 mHz and OC2 of 3,0 mHz to 8,5 mHz
Tubes: EK32, EF39, EBC91, EBL21, EZ35.
This radio was acquired of lady Lourdes in: Forget-me Not Antiqueses (antique dealer in Rio Grande do Sul, Brazil ). it was clean, recuperated and gauged in 6 days, conserving all its original components.
Radiguet & Massiot
Constructeur
P A R I S
The "Radiguet" firm was founded in 1872, with production of precision instruments, scientific games and toys.
In 1889, with the new denomination "Radiquet & Massiot", headquartered at 13 et 15 Bould des Filles du Calvaire, a neigborhood of Paris, France, initiates in the field of high tension, high frequency research and medicine diagnostic instruments, with studies published in 1902.
In 1910, with the new denomination of "Massiot et Cie", relocates to 37 bis rue de Belfort Coubervoie, Seine, yet another suburb of Paris, producing among other things, retro-projectors.
In that same year, the first wireless telegraph services are inaugurated in Paris, making possible its citizens to adjust their watches with greater precision, therefore turning the town into "The Center of The World".
The station, callsign FL, was located in the Eiffel Tower.
Messiot et Cie ceased to exist during World War I.
A set of rare beauty, with modular metal construction, in a varnished
cedar cabinet.
With 1915 technology, all modules had an inscription "RADIGUET A PARIS",
and the number "328".
In 1890, by international agreement, every manufacturer adopts the now
familiar "MADE IN..." in lieu of the name of the locality where
produced.
The signal from the antenna passes through several coils (left of
photo), interchanged by a 10-position key for adjustments, plus a
fine-tuning feature acheived by the use of a slide-rule cursor, allowing
for tuning from a few kiloHertz, to the top of the MediumWave band.
It features two other coils of the "Inductive Coupling" ( Loose Coupler type ) type for further
adjusting.
The tuning is accomplished by variations of the larger coil tapes,
through a second cursor..
The coupler for the detection phase is done by another coil that is
interned in the first coil, allowing for variation in the coupler.
This second coil has a key with eleven positions, which along with the other
cursors, makes possible a wide tuning range.
The detection phase is composed by a Galena Chrystal and a "Cat
Whisker", with an output to headphone muffs, aided by a sliding cursor,
where the user can add capacitors parallel to the headphones.
This Galena Set is in perfect condition, having needed only a thorough
cleaning after nearly 90 years of storage.
RCA VICTOR 2B-401
Receiver manufactured in 1952 and imported by " CASSIO MUNIZ S.A. " of São Paulo, conditioned in box of black plastic.Uses 1 battery type " B " of 67,5 volts and two batteries type " A " of 1,5 volts for the filaments.
Tunes in the Broadcast range of 540kHz to 1600 kHz, 4 tubes: 1R5, 1U4, 1U5, 3V4.
This radio possesses a key " Batery-Life Saver " that when being worked, it supplied an extra life for the filament batteries.
GECOPHONE Model BC 1385
Wavemeter
Built in 1925 by British General Electric Co. Ltd., in mahogany cabinet.
A radio-frequency measuring instrument, features a variometer with a scale of 0o to 180o, calibrated and adjustable oscilator, bell and battery compartment, capable of exciting a galena set among others, by means of coupling at a short distance.
The ressonance reading and adjustments for frequency conversions are accomplished with the aid of a chart located under the lid.This instrument had several applications such as calibrating receivers, antennas and cat wiskers in galena sets.
RCA VICTOR 66BX
"GLOBE TROTTER"
Receiver manufactured in 1947, conditioned in box of Aluminum with brown baquelite. Fed by 1 battery of 90 volts + 9 volts for the filaments (type VS 019) and 115V AC/DC.
This radio was an answer of RCA to the release of Philco, of radio 46-350 " Alligator " in 1946
Tunes medium waves: 540kHz to 1600 kHz, 5 tubes: 1R5, 2 X 1T4, 1S5, 3V4
It possesses 2 antennas, a fixed and another for external use.
The key on/off of this radio is worked when opens up the cover of the dial.
Grundig Model 1059
Manufactured by German Grundig in 1959, this radio is considered one of the countless Clones of Zenith Royal 500. Circuit composed of 6 transistors of germanium. Tunes in OM, of 550 kHz. to 1650 kHz.
SIEMENS KLEIN SUPER - Model SH 522 GW
Announced at that time as " SIEMENS, THE GERMAN MARK OF WORLD FAME " , this radio manufactured in 1951/52 and imported by Brazilian Siemens, is conditioned in baquelite cabinet.The dial is located in the up side of the cabinet, tuning in 3 waves, MW of 550 kHz. to 1600 kHz., SW1 of 3.5 mHz. to 10 mHz. and SW2 of 11.5 mHz to 23 mHz.
Tubes: UCH42, UF41, UBC41, UL41, UY41. Operates in 120 or 220 Volts AC / DC.
If you have the circuit diagram of this radio, please,write to:
João A.B.Mello.
STEWART WARNER
MODEL A51T4 " AIR PAL "
Manufactured in 1947, operate in 117 volts AC/DC, 30 Watts, conditioned in cabinet of black baquelite.Tunes MW of 550 kHz. to 1650 kHz.
Tubes: 12BE6, 12BA6, 12AT6, 50B5 and 35W4. Little units were imported by " Brasília S/A Import"
PHILCO TRANSGLOBE
Model B 459
First model of Transglobe thrown in 1960 by Philco of Brazil.Housed in covered wood cabinet of gray leather, ( was thrown other colors ), with the removable front cover.
Tunes in 6 waves, MW of 550 kHz. to 1550 kHz., SW1 of 2,8 mHz. to 7,5 mHz., SW2 of 8 mHz. to 22 mHz., SW3 enlarged - of 9.4mHz. to 10 mHz., SW4 enlarged - of 11,4 mHz. to 12,7 mHz. and SW 5 enlarged - of 15 mHz. to 18.2 mHz.
The circuit of this Transglobe is composed of 8 transistors of germanium. Exists a second version of this model, where was inserted some modifications in RF circuit.
It possesses an external antenna with 10 thread meters that is put in a spool, housed in the back compartment. When totally stretched, it increases the reception sensibility in short waves.
Homemade construction crystal set
This Galena chrystal set has variable capacitor tuning, fixed coil and is built in an Imbuia wood cabinet.
A lateral space is provided in the box, where a set of headphones and antenna can be stored.
This radio has few resources as far as tuning is concerned, since I was able to capture only one local station with it!
FADA model P 111
Portable radio, conditioned in a beige plastic box, it possesses a cover which opens upwards.
It operates with a long lasting battery, or 115VAC/DC.
Broadcast tuning range: from 540 to 1620 Kilocycles (Kc).
Four miniature tubes: 1R5, 1U4, 1U5, 3V4.
GENERAL ELECTRIC RADIO
MOD X-250
This model built in 1947, is identical to the X-260 shown in my PortableTube Radios page, which incorporates the Shortwave Band.
Coverage: From 540 to 1600 kHz MW.
Tubes: Two 1LN5, and one 1LC6, 1LH4, 3Q5.
Works with a 2 Volt battery, which activates a synchronous vibrator to elevate the tension to 90 Volts.
It performs poorly due to noise from the vibrator, but interesting to operate.
TELEFUNKEN FAMULUS
First transistor radio built in 1960 by AEG Telefunken of Brazil, conditioned in plastic cabinet, with chrome details.Seven transistors, and tunes the Medium Wave band from 550 to 1600 kHz.
LOOP Antenna ( Home made )
Used in the beginning of wireless era , this antenna was rendered to capture signs inside houses in the date back to the 1920's, when was a true work to adjust the syntony of the receiving apparels.Among the decades of 10 and 20, it was common to find people in the week ends going for a walk for the parks, carrying a paraphernalia of boxes and batteries, more the enormous antenna, ostentation sign and cultural position among the others.