A new "cinema" ...;) In fact - a slide show from old photos found in the archive, left over from a long-sold receiver ...
Eumig Bel Ami 355. Austria / 1953 /
Very beautiful and stylish, simple, tiny, but at the same time a 6-tube full-fledged superheterodyne with a "magic eye" and a transformerless universal power supply for DC and AC networks . Assembled on Rimlock UCH42, UAF42, UBC41, UL41, UY41 and UM4 tube . Only two ranges of "Long" and "Medium" waves, stepped tone switch and ... sophisticated and unique design! Honey, not a receiver ...))
But he was not always like this, on this slideshow the process of restoration of this cute baby is embarked on ...
This is interesting stuff... I am also a physics major, plus PhD, but we never learned the cm standard for self capacitance. One other I know of is thanks to collecting radio books. From a copy of the "Admiralty handbook of Wireless and Telegraphy" (in this case the British Admiralty) I learned of the Jar unit of capacitance, where 1 Farad = 9x10^8 Jars, or 1 Jar = 1111 pF. Wikipedia has the definition these days.
Ed
The other name for the cm is Statfarad.
The reason I knew CGSE abd CGSM was (other than their existance that we were advised of) that instead of the recommended Electricity Physics book by Kalashnikov (yes the same last name as that of the AK inventor) which was not that good I got the book of D.V. Sivukhin, who taught in the Moscow PhysTech, the best and most advanced Soviet college. It was a great book, well written and it used CGSE/CGSM systems as they simplify the heck out of Electricity math (Kalashnikov used SI, hence all those hideous 4*Pi*E0 multipliers everywhere). I got A on my exam.
Example:
In SI the capacitance of the sphere in vacuum is
C=4*Pi*Eo*R
where R is the radius, and Eo has dimension.
(Earth is 710 uF)
In CGSE
C=R.
One of the very interesting English radio - Kolster Brandes KB 530. England 1936. Battery 3-tube radio receiver regenerator with a resonant tunable UHF and a fairly powerful low-frequency amplifier. Two wave bands - "Long waves" and "Medium waves". It is assembled on tube manufactured by the English Companies Mullard and Cossor old types with 4, 5 and 7-pin tube caps. Judging by the quality and perfection of the design and high-quality finishing with expensive varieties of veneer, the receiver was created for the well-to-do part of radio listeners in remote areas of the British Empire where electricity was still missing.
It is powered by a 120 volt anode battery and a 2 volt radio tube battery.
The receiver used several interesting technical solutions that are rarely found in other structures, for example, a range selector by pressing and turning the tuning knob and the indication of the included range in a separate window.
Mike: Thanks for the background!
RadioSvit: I believe battery powered sets were quite common in many places in England/UK. In the 1930's many houses were not supplied with electricity, and even if they were, differences in the supply around the country made it tricky for electronic equipment. So, battery powered radios were quite common, even until later. My father recalls this was the case at his home (in a large town) even in the late 1940's or early 1950's, and that my Grandfather would take the lead-acid cells used for filament/heater supply up to the local garage to get them charged. That Kolster-Brandes is a beauty, by the way.
It is very interesting to communicate with colleagues from other countries of the world, you will always find out about new information. Thank you, EdHolland .
In the Soviet Union, battery radio was also quite common until the early 70's, especially in the mountainous regions of Siberia and the Far East, where full electrification was carried out in the last resort.
Kungs LL. Sweden 1932
A very interesting device of the transition period, when the design of a European radio was transformed from a utilitarian instrument with a loudspeaker in a separate package to a one-block familiar to everyone in a beautiful furniture design. And naturally, the cases of such radios were very often made at furniture enterprises, which is why they had the appearance of expensive furniture.
From a technical point of view, there are also many original solutions. The receiver is designed for operation with electric networks of exclusively direct current (!). Therefore, the kenotron is absent in it, and the filaments of the radio tubes are connected in series with each other and the ballast resistor. Naturally applied radio tubes with high filament voltage. Aluminum chassis - the design is very solid and good quality. This is a regenerator with non-resonant UHF. Two triode REN 1821, the first in UHF, the second in the detector. At the exit of RENS 1823d or PP2018 from Tungsram.
By controls. The right knob is the regeneration threshold, the central knob is the tuning, the lower left is the switch MW, LW, the left upper is the connection with the antenna, that is, the sensitivity.
Pete;
Did you know that Kolster-Brandes was originally the British division of a U.S company of the same name? I used to have one of their battery radios, built around 1927 or so, the U.S company failed financially and was gone by 1931. It's curious that your set uses tubes/lamps made by Mullard and Cossor, many K.B sets seem to have used American style tubes much as British Philcos did. One thing that I think is neat is that data plate on the back, the art deco style woman's face in a Killroy pose.
Regards
Arran
Thank you for the information, Arran. I knew that there was a subsidiary in Colchester Brandes in the United States, but did not know that it was the main branch of the firm and in England it was subsidiary. I also did not know that in the USA this firm went bankrupt. As far as I know in the UK she was one of the leaders in the production of radios and televisions.
Here are some more photos of this interesting radio station.
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Pentod VP2 with a classic "English" 7-pin base
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Battery tube superheterodyne VEF B 306.
Battery tube superheterodyne VEF B 306. Latvia, the well-known factory VEF 1940. The receiver is all-wave, with three ranges - LW, MW and KW. It is assembled on three tube with a 2 volt glow and is intended for use in remote areas of Latvia, as well as in the Baltic and Scandinavian countries, where it was exported and where electricity was not yet available before the war. The beautiful and stylish case of the receiver imitates carbolite, but in fact it is made of ... wood. This is the technological paradox of the middle of the last century, when using more labor-intensive and old technologies using manual labor and more expensive materials imitated cheaper, but trendy carbolic receivers, the production technologies of which were not yet accessible to all firms.
Батарейный ламповый супергетеродин VEF B 306 .
Батарейный ламповый супергетеродин VEF B 306 . Латвия , всем известный завод VEF 1940 год. Приемник всеволновый , с тремья диапазонами - ДВ , СВ и КВ. Собран на трех лампах с 2-х вольтовым накалом и предназначен для эксплуатации в отдаленных районах Латвии ,а также стран Балтии и Скандинавии , куда он поставлялся на экспорт и где в довоенное время еще отсутствовало электричество . Красивый и стильный корпус приемника имитирует карболит, но на самом деле сделан из ... дерева . Вот такой технологический парадокс середины минувшего столетия , когда с помощью более трудозатратных и старых технологий с использованием ручного труда и более дорогих материалов имитировали более дешевые, но модные карболитовые корпуса приемников , технологии производства которых еще не всем фирмам были доступними .
This is not the propagation of the USSR and not the propagation of the ideas of communism ...
This is the only music for my little video about the 10 most popular radio in the USSR.
It seems to me that here something is very familiar to you ...
Top 10 Soviet most popular, popular and accessible to the public radio receivers of the 30s..50s to the accompaniment of the music USSR of those years)).
1). SI-235. 1935 ... 41 years.
2). 6H-1. 1937 ... 41years.
3). Record 47/52. 1947 ... 54 years.
4). Moskvith. 1949 ... 60 years..
5). ARZ-49/52/54. 1949 .. 58 years.
6). Baltic RZ-1/52 / 54. 1950 ... 56 years.
7). Dnipro 52/56. 1952 ... 60 years.
8). Rоdina 52 / 53m 1952 ... 60 years.
9). Record 53. 1953 ... 60 years.
10. Strela 1957 ... 62 years.
Топ 10 советских самых массовых, популярных и доступных населению радиоприемников 30-х..50-х годов под аккомпанимент музыки СССР тех лет )).
1). СИ-235 . 1935...41 гг .
2). 6Н-1 . 1937...41 гг.
3). Рекорд 47/52. 1947...54 гг.
4). Москвич. 1949...60 гг.
5). АРЗ-49 / 52 / 54 . 1949.. 58 гг.
6). Балтика РЗ-1 / 52 / 54. 1950...56 гг .
7). Дніпро 52/56. 1952...60 гг.
8). Родина 52 /53м 1952...60 гг.
9). Рекорд 53. 1953...60 гг.
10.Стрела 1957...62 гг.
Radio Philips 2531.
1930 Holland One of the latest models of this company with a separate loudspeaker. My copy is equipped with a Philips loudspeaker too, Type model No. 2007 of the 26th model with a diameter of 46 cm. The receiver is assembled in a bakelite case, on four radio tubes with a socle of the type "cross" of the French sample of 1918, the type of regenerator with resonant UHF. The UHF frequency setting is not synchronized with the frequency of the detector and is carried out by a separate small knob on the side wall to the left. The upper large knob is the sensitivity adjustment, the lower large knob is a three-stage part switch in three subranges with a solid overlap - 200 ... 450 meters, 400 ... 950 meters and 900 ... 2100 meters. On the right side, a small knob - the frequency of the detector settings, a large one - the adjustment of the regeneration threshold. Since the detector and UHF cascades have their own frequency knobs, there are also two scales in the receiver.
..................................................................................................................................
Радиоприемник Philips 2531 . 1930 год . Голландия . Одна из последних моделей этой фирмы с отдельным громкоговорителем. Мой екземпляр укомплектован громкоговорителем тоже фирмы Филипс , - модель Typ № 2007 образца 26 года диаметром 46 см . Приемник собран в бакелитовом корпусе , на четырех радиолампах с цоколем типа "крест" французского образца 1918-го года , тип - регенератор с резонансным УВЧ . Настройка частоты УВЧ несинхронизирована с частотой детектора и осуществляется отдельной маленькой ручкой на боковой стенке слева . Верхняя большая ручка - регулировка чувствительности , нижняя большая - трехступенчастый переключатель диапазоновв в трех поддиапазонах со сплошным перекрытием - 200...450 метров , 400...950 метров и 900...2100 метров . С правой стороны маленькая ручка - частота настройки детектора , большая - регулировка порога регенерации. Так как каскады детектора и УВЧ имеют свои ручки настройки частоты то и шкалы в приемнике тоже две .
Overview of the radio bar, who visited my collection at different times ...
Absolutely necessary in the living room thing ... ?
"Three in one" ... ?
Sachsenwerk 557 ............................. GDR ....... 1950
Radiomarelli .................................... Italy ..1948
Copetnagh ....................................... Denmark ..... 1938
Allockhio Bachini B 316 ......................Italy ... 1950
Blaupunkt Florida Typ 4526 ................ Germany....... 1956
.........................................................................................................
Обзор радиобаров , в разное время побывавших в моей коллекции ...
Совершенно необходимая в гостинной вещь ... ?
Три в одном ...?
Sachsenwerk 557 .......................... ГДР ....... 1950
Radiomarelli ....................................Италия ..1948
Copetnagh.......................................Дания .....1938
Allockhio Bachini B 316.....................Италия ...1950
Blaupunkt Florida Typ 4526................ФРГ.........1956
Hello . He was absent for a long time, but managed to return to Christmas.
Merry Christmas to you, dear colleagues collectors and connoisseurs of the old radio.
Unfortunately, I don’t have much free time to engage in my favorite hobby and therefore I value even more any free minute and the opportunity to do it. Yesterday I had such an opportunity and shot a video about my new acquisition - the Emerson 558 portable radio.
Nice presentation (one has to read Ukrainian to fully appreciate it; I did).
Would be nice to listen to the sound. In your case it is easier as if you demonstrate the sound playing some Ukrainian or Romanian music, the Copyright police bots won't bother you like they do us here for any Western coyprighted content, even if played for a few seconds.