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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 † 28.9.20.


Some models:
Country Year Name 1st Tube Notes
NL  48–50 Wiramphone 72001 EF22  Wire recorder-gramophone player. USA made recorder-phono deck, Armour Research Foundation ... 
NL  53–57 Handy Sound HS EF40  Early tape recorder 19 cm/s, bias 37.65 kHz, DC erase, frequency range up to 10 kHz, combi... 
NL  56–58 Handy Sound Master HS256 PCC85  Tape recorder 19 cm/s, bias/erase 37.65 kHz, frequency range up to 10 kHz, combined Amroh ... 
NL  55 Mambo 35W4   
NL  58 Fidelio [early] ECC83  Construction kit 
NL  59–62 Step by Step 1   Boys radio kit, carton box enclosure. 
NL  59–62 Step by Step 2 OC3  Boys radio kit, carton box enclosure. 
NL  59–62 Step by Step 3 OC3  Boys radio kit, carton box enclosure. 
NL  59–62 Step by Step 4   Boys radio kit, metal enclosure. 
NL  63 Meson 12AT7   
NL  58 Nucleon 1R5  Einfacher Geradeaus-Empfänger (Audion mit Rückkopplung), Batteriespeisung, veröffentlicht ... 
NL  61 UN-58 EF93  Zweikreiser, nur Mittelwellenempfang, Bausatz der Firma Amroh (Muiden, Niederlande). Man n... 

[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

  

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