UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

oldeurope · 25th Jan 2007, 8:49 am

Good morning,
I think the neon current is V batt divided by R coil. The resistor makes the "on time" of the neon shorter. If you want to limit the current of the neon, a resistor (470 Ohms for example) should be placed in series with the battery. This makes the lightning more independent in the size of the transformer.

But in real live I use my VARIAC and an amperemeter to test transformers

.

Kind regards,
Darius

Lenz told something like: " A coil tries to keep the last current flow alive untill the stored magnetic energie is empty."

25th Jan 2007, 8:49 am	#5
oldeurope Retired Dormant Member Join Date: Dec 2003 Location: Solingen, Germany Posts: 727	Testing a transformer for shorted turns Good morning, I think the neon current is V batt divided by R coil. The resistor makes the "on time" of the neon shorter. If you want to limit the current of the neon, a resistor (470 Ohms for example) should be placed in series with the battery. This makes the lightning more independent in the size of the transformer. But in real live I use my VARIAC and an amperemeter to test transformers. Kind regards, Darius Lenz told something like: " A coil tries to keep the last current flow alive untill the stored magnetic energie is empty." Last edited by Darren-UK; 9th Mar 2008 at 11:08 pm. Reason: Title continuity and unnecessary quoting.