![](https://www.preservationsound.com/wp-content/uploads/2019/03/07135118772-1024x723.jpg)
Reader N. Short alerted us that “(here is) a TREASURE trove of 1920-60’sĀ Telefunken archiveĀ of loudspeakers, service diagrams, advertisements…” – 399 to be exact – see them all at this link, courtesy the German Technical Museum.
![](https://www.preservationsound.com/wp-content/uploads/2019/03/07135847369-1024x703.jpg)
Reader N. Short alerted us that “(here is) a TREASURE trove of 1920-60’sĀ Telefunken archiveĀ of loudspeakers, service diagrams, advertisements…” – 399 to be exact – see them all at this link, courtesy the German Technical Museum.