Minerva Tempocord

A multi-band radio receiver from the year 1957 is the Tempocord of the company Minerva. The company Minerva was founded in Vienna in 1919 and began in 1924 with the production of radio receivers. The radios were initially made under the name Radiola or Aeriola. It was not until 1926 that the receivers were built under the name Minerva. The name Minerva was used until 1972.

The device here refuses any service after being supplied with the mains voltage. Thus, a first error is found quickly. The mains voltage does not reach the transformer. The reason for this is the mains fuses, which protect the transformer from all poles. Here are both broken. Probably because the transformer tap was clamped to 220V … Rectification and smoothing capacitors are fine.

The fuses, however, are wrapped in paper security wires, which are wrapped at the ends each with a brass clip. Due to the lack of availability of these old fuses, the fuse holders located on the Trafoprint have been swapped for current ones and reinserted. After carefully raising the supply voltage, the receiver was again able to elicit sounds …

Technical Data:

Manufacturer brand: Minerva-Radio Wien
Model: Tempocord
Construction year: 1960
Typ: Radio receiver (postwar receiver)
tubes: ECC85 ECH81 EF89 EBF89 EM81 EABC80 EL84 EZ80
Operating principle / construction: Superhet receiver IF 480/10700 kHz
2 NF stages . 11 FM circles and 6 AM circles
wavebands: longwave, medium-wave, shortwave and ultrashortwave
Supplyvoltage: 110V, 130V, 150V, 220V, 240Volt
Speaker: dynamic permanentmagnet-ovalspeaker
Wooden housing with dimensions: (BxHxT)55 x 32 x 25 cm

(sources: wikipedia)

(the device was provided for documentation purposes by: Berti)

3 thoughts on “Minerva Tempocord”

Hello ! I have this radio model and it doesn’t work in parameters, please if you have an electronic diagram, because I can’t read what is written on the electronic tubes. thank you.

Hallo ! Ich habe dieses Radiomodell und es funktioniert nicht in den Parametern, bitte, wenn Sie ein elektronisches Diagramm haben, weil ich nicht lesen kann, was auf den elektronischen Röhren steht. Danke.

I have this same model and when connected to power it has no reaction, no sounds, no lights. I suspect it is the same issue you describe here, but I am not sure what to buy to replace it. You say you replaced the fuse holders, but with what? I would appreciate any input.