Monday, 26 June 2017

73 from Jakarta

Tata YB0EIN from Jakarta, Indonesia sent me this eQSL from an RTTY QSO back in 2006:



Wednesday, 7 June 2017

Tube headphone amplifier

Finished a nice DIY kit. This time a tube headphone amplifier.
The two 6J5 triodes look fine !


                              Headphone amplifier with two 6J5 triodes

After the triodes, low noise ic's NE5532P take care for more amplification.

Now I just have to find a simple power supply unit capable of delivering +/0/- 15VDC to get it to work.

More info:

https://www.banggood.com/DIY-Class-A-6J5-HIFI-Headphone-Amplifier-Vacuum-Tube-Preamplifier-Kit-p-1072336.html?rmmds=search

Circuit of the amp;







Off topic:

View of the "Sint Lievensmonstertoren" in Zierikzee.

Zierikzee is the capital city of the island of Schouwen-Duivenland in the province of Zeeland; the island just below the island where I live, Goeree-Overflakkee.


Sint Lievensmonstertoren, Zierikzee

The start of the construction of the tower was in 1454. The original design shows that the final height should have been 130 meters, but due to a lack of resources this value was never reached. 62 meters is the height at this moment. Nevertheless an amazing achievement of the people in the 15th and 16th century.


Zierikzee visit, June 28, 2017 


Thursday, 1 June 2017

Greeting from Port Elizabeth

Just received a funny eQSL-card from Barry ZS2EZ in South Africa (Port Elizabeth).
QSO was from 2011 on 28 MHz (RTTY).



Off topic:

Photo taken through a Boeing 737-900 window from Goeree-Overflakkee;