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.



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;