kriegsfunker Posted January 11, 2019 Author Share Posted January 11, 2019 Thank you Pierre - this is very very useful. Link to comment Share on other sites More sharing options...
val Posted January 11, 2019 Share Posted January 11, 2019 Pierre - from Germany - Werner? Regarding Glimmlampe - it is connected directly to mains power without any current limiting resistor i see on the schematics...so i wonder is there resistor integrated inside glimmlampe. Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 11, 2019 Author Share Posted January 11, 2019 The schematic is a simplified foundational schematic. There are other components behind a metal shield with the glimmlampe, I will record them and let you know what they are. Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 11, 2019 Author Share Posted January 11, 2019 8 hours ago, tornfuté said: The schematic is very simple , one transformer for HT and one for LT a bridge , filter . Yuri you are right the big resistor in my SGL T 100 must be the equivalent of your resistor . In Na8 the owner tell me that the capacitors must still be original . In notice i get it’s not said the value , nor if it’s paper or electrolytics capacitors, but they are still working I have measured a 400 uF electrolytic cap in the NA8 and it reads about 180 uF. I tried re-forming it, but that didn't change the reading. I opened it up and it's the standard electrolytic/paper capacitors. All need to be updated to modern ones (hidden inside). Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 12, 2019 Author Share Posted January 12, 2019 Glimmlampe information: The writing has seriously deteriorated with oxidation and age, but I could find some logo which is shaped like a circle with another circle inside. There was writing there " 220V / 672" That's all I could read from there. 1 Link to comment Share on other sites More sharing options...
tornfuté Posted January 12, 2019 Share Posted January 12, 2019 About SGLT 100 i search for the 2nd unit , it's a little bit different Inside , some capacitors are dated 1954 i believe oïl capacitor but 1 KV seems me not enough seleniums are square and not round . the glimmlampe is present i can't unscrew it but it's like a TE 5 small neon lamp used in NA6 i don't know if it's original val no it's not Werner here pictures of this second unit i get it years ago with a 100 ws i sold , it was annonced in working order , but i never try, it looks like that psu was restored 1 Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 19, 2019 Author Share Posted January 19, 2019 Removing the old capacitor material from inside of it. As you can see, the capacitors don't look healthy, and there's lots of oxidation showing through the paper. Hence the 1.6 uF reading for a 400 uF capacitor. 1 Link to comment Share on other sites More sharing options...
val Posted January 20, 2019 Share Posted January 20, 2019 Nice job! Was it polarized capacitor? Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 20, 2019 Author Share Posted January 20, 2019 yes Link to comment Share on other sites More sharing options...
val Posted January 20, 2019 Share Posted January 20, 2019 This shows nicely you just can't reform those old capacitors. Time does it's job. Only solution - just replace. Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 21, 2019 Author Share Posted January 21, 2019 A badly ruined capacitor has cracked its Bakelite container Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 22, 2019 Author Share Posted January 22, 2019 On 11/01/2019 at 22:30, kriegsfunker said: Glimmlampe information: The writing has seriously deteriorated with oxidation and age, but I could find some logo which is shaped like a circle with another circle inside. There was writing there " 220V / 672" That's all I could read from there. This may be the best substitute https://www.buerklin.com/de/glimmlampe-mit-vorwiderstand/p/33g674 1 Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 23, 2019 Author Share Posted January 23, 2019 Look what I found 🙂 Link to comment Share on other sites More sharing options...
tornfuté Posted January 24, 2019 Share Posted January 24, 2019 It’s what i get copies , but there is no valuable info inside , i make pictures of some bulbs i own 1 Link to comment Share on other sites More sharing options...
val Posted January 24, 2019 Share Posted January 24, 2019 Merci, @tornfuté ! Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 24, 2019 Author Share Posted January 24, 2019 It should have a schematic and other information: 1 Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 24, 2019 Author Share Posted January 24, 2019 Table of contents 1 Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 24, 2019 Author Share Posted January 24, 2019 Thanks Pierre - looks like mine is probably the one on the left - 6727 (220 V) Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 28, 2019 Author Share Posted January 28, 2019 Front panel cover removed: Link to comment Share on other sites More sharing options...
kriegsfunker Posted January 28, 2019 Author Share Posted January 28, 2019 NA8 becoming empty..... Link to comment Share on other sites More sharing options...
kriegsfunker Posted February 3, 2019 Author Share Posted February 3, 2019 Restoring the high-voltage chokes. Great to have the specs on the components: 0.45 wire diameter, 6225 windings. 3600 test voltage. Model V.7340 Sp.V. 21962 Link to comment Share on other sites More sharing options...
kriegsfunker Posted February 3, 2019 Author Share Posted February 3, 2019 Yep, this power supply was stored outside..... Link to comment Share on other sites More sharing options...
kriegsfunker Posted February 6, 2019 Author Share Posted February 6, 2019 Does anyone know if there are any effects of running an appliance that worked on German 50 Hz AC power, from an outlet with 60 Hz AC power? Link to comment Share on other sites More sharing options...
kriegsfunker Posted February 6, 2019 Author Share Posted February 6, 2019 I forget what I even have. I found a curious box today..... Link to comment Share on other sites More sharing options...
Funksammler Posted February 6, 2019 Share Posted February 6, 2019 8 hours ago, kriegsfunker said: Does anyone know if there are any effects of running an appliance that worked on German 50 Hz AC power, from an outlet with 60 Hz AC power? Running a 50Hz transformer on 60Hz should not be a problem. The issue is the flux created in the core and the associated heat loss, the lower the frequency the higher the flux, if it reaches saturation you will start generating excess losses and heat which could destroy the transformer. So running a 50 Hz transformer on a higher frequency reduces the flux and will not cause problems. The filters designs were optimised for 50Hz, but since these are mainly low pass they will also be more effective at rejecting the higher mains frequency. This is why aircraft installations often use 400 Hz power supplies and how modern switched power supplies get away with using tiny transformers, the higher frequencies generate less flux and allow the iron cores of the transformers to be much smaller.... regards, Funksammler 1 Link to comment Share on other sites More sharing options...
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