Blaupunkt Radio

[Jonathon Burnside]

IN2022 BLAUPUNKT re-organized its operations. BLAUPUNKT has decided with one of the most experienced Car Audio companies in North America, making BLAUPUNKT Car Audio even more excellent while always having the brand values of this epic brand in mind.

BLAUPUNKT has entertained people on their journey since the early 30s of the last century. And we were always ahead. The first BLAUPUNKT Autoradio had everything todays car audio enthusiasts demand: Theft protection, remote control, and external data sources.

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I installed a Frankfurt US Blaupunkt radio in my 2002 when I purchased the car new in 1974. Although a mono radio, I originally hooked up 2 under dash speakers, but do not remember how I wired up the speakers.

That's what I am guessing as well. The Frankfurt is expecting one 8 ohm speaker. If you want to run 2 speakers, your would run two 4 ohm speakers in series which would provide 8 ohms to the radio. Or, you could run two 16 ohm speakers in parallel to get your 8 ohms at the radio.

Does anyone have a mono speaker plug or know what speaker plugs would work with a Frankfurt US Blaupunkt radio, which I installed in my 1974 BMW 2002 when I purchased it new in 1974? I have tried standard RCA type plugs, but they are too loose.

I currently have a Japanese Frankfurt from the early 80's with two 5 1/4 Fosgate speakers I bought with the Kooglewerks speaker blisters. The DIN plug on the 80's Blaupunkt goes out for an amplifier and would not work for a bluetooth adaptor. Plus, the early Frankfurt looks good.

The speakers are 4 ohm, so I would have to run the speaker wires to the above 'series' diagram for 8ohms resistance. Ingo at Vintageblau recommended against the Fosgate speakers due to the power rating. The speakers are 40 watt speakers. Should I be searching for 70's style speakers with lower wattage?

I have installed a new in-line fuseholder in the power lead with the correct 2 Amp fuse and I have also provided a spare fuse for your convenience. Hopefully that extra fuse will not be needed! The normal operating current for the radio is 0.5 Amp, therefore a 2 Amp fuse is more than adequate for normal operation and if a power fault does occur, it will protect the radio from damage.

Please be careful not to twist the power cable axially where it enters the power plug itself. It was quite twisted and caused damage to the wires, which has been repaired, but why tempt fate in the future?

Your cost to accomplish those tasks, including return shipping by insured Priority Mail is $92. If you would deposit that amount to my PayPal account (radi...@bellsouth.net), I will ship as soon as possible.

I had my Philips radio renovated and converted to digital (and with aux input for iPhone) while retaining all visible fascia and controls working as normal. Very pleased with the results. Joe also does repairs and restorations. Joe's Classic Car Radio- Home

In the late 1960s the first cars appeared with a larger 1-DIN dashboard aperture which became the industry standard around 1974. If your classic car features the large square 1-DIN radio aperture (MG MGA / MGB, Mercedes-Benz from 1968 and others) you will need to choose a radio with a large face-plate. Also a special 1-DIN radio mounting bracket is needed then.

Looks to be from a Mercedes from the late 1950's. If you google images of Mercedes models 180, 190, 219, 220 I think you might find something close. Sorry to say I don't think a AM radio has much value but I am by no means and expert. Good luck

It covers longwave, medium wave and three shortwave bands from 5.5 to 21 MHz. I had never before seen a radio with a dial given in meters rather than kHz or MHz, but I have later understood that that was not uncommon for pre world war II radios.

But there were a couple of more names with a lot of history in them. Troppau can be found on a wavelength of 249 m (1204 kHz), a frequency which it had until September 1939. Today Troppau is called Opava and lies in the Czech Republic. Troppau lies in the Sudetenland which Germany annexed on 30. September 1938. Finally one can find Memel on 531 m (565 kHz). This city is today called Klaipeda and lies in Lithuania. It was occupied on 22. March 1939 as the last German annexation before the outbreak of the war on 1. September 1939.

With some cleaning the exterior turned out to be quite nice. I thought to myself that I cannot give up now, so on inspection I could see that a couple of electrolytic capacitor had been replaced, probably by my father. It had the following tubes: ECH11 as mixer/oscillator, EBF11 and EF11 for the intermediate frequency stages, and EFM11 for the magic eye and the first low frequency amplifier.

The output tube and the rectifier were missing, and it was natural to look for tubes in the same 11-series. I was not able to find this particular radio in the large archives of the Norwegian Radio History Society, but there was documentation for a few other Blaupunkts there. From their descriptions I could guess EL11 for the output tube. Measuring the filament voltage for the rectifier gave 4 Volts, so then AZ11 was a good choice.

With some excitement I turned on the voltage for the first time, and to be on the safe side I connected it in series with a 60 W light bulb to reduce the voltage. No explosion! As incredible as it sounds, with full voltage it actually produced sound. But unfortunately after a few seconds everything disappeared. One evening with diagnosis of the radio and I could isolate the problem to the beginning of the audio section and two rotten shielded cables connecting audio in and out of the pentode in the magic eye. Not everything is as new after 60 years! After having replaced the cables the radio was perfect, and even the magic eye and the dial lamps functioned. In my experience the magic eye is often weak and in the Oslo region the dial lamps for the longwave band may have burnt out as the local station used to be on 218 kHz.

This radio cannot have been more than a couple years old when all radios were confiscated in Norway in 1941. Imagine how sad it must have been to give up such a nice and costly radio at that time! This must also have been one of the few radios that actually were returned to their rightful owners in 1945.

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She thought it would be nice to have it in our living room, so after checking with her parents and her brother (nobody wanted the old radio) we took it home and parked it in my (newly renovated) hobby room.

I tracked down a schematic of the 20300, and was rather surprised to learn that it has only six tubes (counting the magic eye.) Given that some of them are duals, it has the equivalent of seven transistors (not counting the magic eye) to implement a multi-band AM and FM receiver - along with a phonograph input and reel-to-reel input and output (you can playback from tape or record from radio to tape.)

Founded in 1924 in Berlin as "Ideal,"[4] the company was acquired by Robert Bosch AG in 1933.[5] In 1938 it changed its name to "Blaupunkt", German for "blue point" or "blue dot", after the blue dot painted onto its headphones that had passed quality control.

Blaupunkt took over a former Philips/Grundig factory in Portugal to produce automotive head units. It is still owned and operated by Bosch, used exclusively to make OEM units for car manufacturers and 24V (e.g., Coach) AV equipment. Later, factories were set up in Tunisia (speakers) and Malaysia (speakers and electronics).

In 1949, Blaupunkt advertised the first FM-capable car radio.[6] By the 1960 and 1970s, Blaupunkt had become one of the leading German manufacturers of car radios and car audio equipment. In 1983, it began selling an in-dash CD player.[6]

Blaupunkt was involved in developing the Autofahrer-Rundfunk-Informationssystem traffic-information system for car radios and provided this feature on their German-market car radios from the late 1970s. The company attempted to have ARI used in the United States but had only a few radio stations per major city involved.[citation needed]

For many years, Blaupunkt car audio equipment models often carried the name of a city somewhere in the world, e.g., "London RDM126". In Blaupunkt model terminology, this can be translated as "An RDS CD player capable of controlling a Multichanger, rated at 430 W RMS (4 30 = 120) from the model year 1996". High-end models typically had German place names.[citation needed]

Blaupunkt also used the brand "Velocity" to sell products aimed at the top, audiophile end of the market. Audi, Volkswagen, Porsche, Mercedes-Benz, Proton, Vauxhall, Pontiac, Holden and BMW all fit Blaupunkt (now simply Bosch) products into their cars, often branded with the car manufacturer's mark (e.g., The VW Gamma, Audi Symphony or BMW Business CD lines), with Fiat using them, occasionally unbranded but generally unmodified. Some later Holden Astra models are fitted with Blaupunkt systems (with others being produced by Delphi Automotive). Blaupunkt also specialised in coach installations, selling TVs, multiple-speaker setups, and PA equipment to that industry. That part of the business has remained with Robert Bosch Car Multimedia GmbH, a 100% subsidiary of Robert Bosch GmbH. The Blaupunkt branding is no longer used, even on 'hidden' stickers.

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