saba: Saba Lindau, Villingen with EM80 - Increase EM80 Sensitivity

ID: 294019
This article refers to the model: Lindau W5 (SABA; Villingen)

saba: Saba Lindau, Villingen with EM80 - Increase EM80 Sensitivity 
31.Jul.12 17:56
2385

Riccardo Coradazzi (I)
Articles: 27
Count of Thanks: 5
Riccardo Coradazzi

Dear All,

I've restored a Saba Villingen III and a Saba Lindau W5 made in 1954.

For both models I've noticed that - especially in FM - the magic eye was always closed or slightly opened, with strong emitter too.

The issue is not depending from the radio sensitivity because the reception is very good.

The control voltage on EM80 grid was lower than 1Volt also with the strongest emitter in the region.

I've changed the 10MOhm resistor with one of 2.5 MOhm, and now the magic eyes work properly.

If anybody had the same problem, feedbacks would be welcome.

Best Regards

Riccardo

 

Attachments:

To thank the Author because you find the post helpful or well done.