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History of the manufacturer  

Amroh NV (Radio Bulletin monthly), Muiden

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Name: Amroh NV (Radio Bulletin monthly), Muiden    (NL)  
Abbreviation: amroh
Products: Model types Tube manufacturer
Summary:

AMROH NV is founded in 1923 by Georg C.F. Kauderer as "American Radio House". In the first years AMROH imports radio components from the USA, selling these in The Netherlands. In 1926 the name of the firm is shortened to AMROH.

Amateur Radio Montly Magazine. Address: Nijverheidswerf, Bussum.

The magazine was owned by Amroh (Amsterdamse Radio Onderdelen Handel)

Founded: 1923
Closed: 2002
Production: 1935 -
History:

AMROH NV is founded in 1923 by Georg C.F. Kauderer as "American Radio House". In the first years AMROH imports radio components from the USA, selling these in The Netherlands. In 1926 the name of the firm is shortened to AMROH. Pre-war brands imported by AMROH are Radio Instruments (audio transformers), Goodmans (loudspeakers), Belling-Lee (pickup cartridges, tube sockets, connectors), Dubilier (capacitors), Varley (coils, resistors), Wharfedale (loudspeakers), Westinghouse, Watmell, Novocon (coils) and Electro-Dynamic (transformers). In 1935 a own production facility (transformers, coils) is formed: Amutronics. In 1936 a publishing company "De Muiderkring NV" is established. This is the start of many succesfull publications in the field of do-it-yourself radio projects. A famous Muiderkring author was Dr. Blan, pseudonym for Drs. Ing. C.F. Ruyter (1908-2002). AMROH has a strong market position: a sales organisation, production facility and publisher, all in one hand, concentrating on radio products.

The AMROH radio kits use high-quality components, and are very well documented. The nineteen-fifties were the "Golden years" for AMROH, and a second production facility is started in Kollum. Also complete products were made, e.g. the "Handy Sound" line of tape recorders (1953-1963).

This manufacturer was suggested by John Hupse.


Some models:
Country Year Name 1st Tube Notes
NL  53 Super afstemmer MK-53 Ch= 51 ECH42  The MK-53 is a tuner with half an ECC81 as the A.F. output stage for connection to an ampl... 
NL  55 Voedingsapparaat voor batterij-ontvanger UN-36 E250C85  The UN-36 is a general power supply for battery apparatus. As an extra, the second diagram... 
NL  55 Hoofdversterker HV-231 EF86  The HV-231 is part of Amroh's so-called '200-series'. The HV-231 is almost the same as ... 
NL  54 Hoofdversterker HV-216 EF86  Amplifiers coded HV-xxx belong to Amroh's so called '200-series'. 
NL  55 Noval Super ECH81  The Noval Super is the 16th model in the series "experiment gratuitously" (gratis experime... 
NL  53 Bandbreedteregelaar 993   Amroh's 993 is a medium frequency bandwidth regulator. It is used in combination with new ... 
NL  55 Hoofdversterker HV-211 ECC83  All main amplifiers with code HV-2xx are part of the 200-series. The 5-pin connector distr... 
NL  52 Voorversterkers in blokbouw 200 Series   The short name of this item  is "200-Series" which consists of 5 pre-amplifiers to be... 
NL  61 Serenade ECC83  Sound range: 25 - 10.000 Hz Tape speed:   9.5 cm/s Play time:   ... 
NL  53 MK Duomax EAF42  Model MK Duomax was not available as a kit. All parts had to be purchased as separate comp... 
NL  58 Kristalontvanger Elektron    
NL  48 MK DRIE EF9  It is not known when this model was published in Radio Bulletin. The publication in boo... 

[rmxhdet-en]

Further details for this manufacturer by the members (rmfiorg):

I proposed "autoradio 1950" but could not yet upload this pic. This car radio is a superhet, published in Radio Bulletin 1950. The schematics were drawn by myself, using the original data.tbn_nl_radiobul_autoradio_pic.jpg

  
rmXorg