Archives
Categories
Author Archives: Thomas S. Knutsen
Transverter interfacing – Flex
I like operating on the VHF and UHF bands those few openings we have here in the north. With my new Flex radio, I decided that the time was in for designing a whole section of transverters to cover the … Continue reading
Posted in Uncategorized
Leave a comment
Curve tracer christmas calendar 24 – NPN Transistor
Last day this year will be a regular BC547 transistor. I hope you have liked this little advent calendar, its been fun to figure out all of the devices to measure. As you can see, the beta of the device … Continue reading
Posted in Uncategorized
1 Comment
Curve tracer christmas calendar 23 – Inductor
Today its one winding of a transformer. Tomorrow I plan on doing a larger post, and show how the pictures are taken.
Posted in Uncategorized
Leave a comment
Curve tracer christmas calendar 22 – Pentode
A EL11 Pentode.
Posted in Uncategorized
Leave a comment
Curve tracer christmas calendar 21 – Selenium diode
Before Si and Ge, there was Se diodes.
Posted in Uncategorized
Leave a comment
Curve tracer christmas calendar 20 – Tunnel Diode
Today its time for one of the more interesting devices, a Tunnel Diode. The diode is a 3I306G off ebay.
Posted in Uncategorized
Leave a comment
Curve tracer christmas calendar 19 – LED
Regular yellow LED.
Posted in Uncategorized
Leave a comment
Curve tracer christmas calendar 16 – Unknown device
Todays device is quite special. I was sure it was a Selen rectifier diode based on the looks of it, but when sweeping it, it seems more like a overvoltage protection device.
Posted in Uncategorized
Leave a comment