Path: csiph.com!weretis.net!feeder9.news.weretis.net!3.eu.feeder.erje.net!feeder.erje.net!news.szaf.org!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Reinhard Zwirner Newsgroups: sci.electronics.components Subject: Re: Question regarding the identification of a component Date: Tue, 9 Sep 2025 22:15:05 +0200 Lines: 26 Message-ID: References: <109pk31$13i20$1@dont-email.me> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: individual.net JyLRnkSdEAzWvUD+sF8AMAqUsYjOOa8Q3mVXwxAzK2NzE= Cancel-Lock: sha1:i7iRlfEH483anju8NzEHUId2cE8= sha256:QF2yzJXw4v86kNrZMnxYYbKEFpExYuGfVAD8IY2S/yo= User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0 SeaMonkey/2.53.21 In-Reply-To: <109pk31$13i20$1@dont-email.me> Xref: csiph.com sci.electronics.components:6594 Klaus Kragelund schrieb: > On 09/09/2025 14:38, Reinhard Zwirner wrote: >> Attention: fup2! >> >> Hello, >> >> In an older power supply unit for GM counter tubes, the high voltage >> (max. 1 kV) is generated by a normal push-pull voltage converter >> (switching frequency approx. 8 kHz). In the HV filter chain, this >> >> >> >> capacitor is connected in parallel with the following strangely >> marked component of the same size, >> >> >> >> which my Far Eastern multitester identifies as an 8 nF capacitor. >> That could well be the case, but why the strange marking? A VDR? What >> do you think? >> >> Many thanks in advance for your hints. > > That's an old stype disc ceramic capacitor. 10nF, 3kV, Z5U material Yes, that is the part shown in the first photo.