Югославия

Hello to everyone. I got this rare bulb today. It is high pressure natrium (sodium) lamp made in Yugoslavia, in NOS shape. Arctube is clear, logo is still visible but the box state is rump, because it was sitting in garage. I got also 2 Philips (250W and 400W) lamps with boxes for 250W lamps. I am quite amazed to find it because these are rare nowadays and also many are EOL or rusted/with worn out logo. C means tubular, tubular bulbs were only clear.

I bought this box with 25 bulbs 2 days ago on auction site, and it arrived today. It is in good shape and is original. These are used for bicycles with dynamo. Made on 26.04.1965. Great bulbs. If you want more pictures PM me.

Here are my bulbs. I got them today, in new condition. They have original box. Interestingly these bulbs aren't same. One bulb has thinner coating, the other has dimple at the top. Both of them are same wattage, brand and cap type (E27). Color is bright and has nice CRI.

Here are the T8 tubes from Tesla. These tubes are both burned out DS one lost vacuum due to short circuit, BB one was used and got cathode broken. Color of DS on this one is about 5000K (factory used different coating for short period), BB color is similar to 33/640. Tubes have cathode guards, which was only seen on T8 tubes. Coating is as smooth as Philips ones.

Here are the first tubes in collection. I bought 5 of them in 2017 and only 4 survived to this day. 3 of them are 100% working, 4th one has broken wires. Color is daylight (DS), CRI is good. Tubes are new and have less than 10 hours of use.

A very beautiful and unique light bulb. It is about 35 years old and has the paint on the outside. An excellent specimen. Selena was a company in Yugoslavia (Macedonia) that produced light bulbs similar to the tt brand.

This is one of the first bulbs in my collection that I bought in 2017. Tež Tesla brand, badly visible logo, 40 W power, shines orange.

High quality light bulb. According to a former worker at Tesla plant in Pancevo, these bulbs can last up to 20 years, sometimes even longer.