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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: john larkin Newsgroups: sci.electronics.design Subject: Re: Mirror as ground plane Date: Wed, 27 Nov 2024 12:53:01 -0800 Organization: A noiseless patient Spider Lines: 12 Message-ID: <4j1fkjtq7hk2ni1mfftpdkvv4nhpqmbvcj@4ax.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Injection-Date: Wed, 27 Nov 2024 21:50:21 +0100 (CET) Injection-Info: dont-email.me; posting-host="98c1c634dacd98d87bc8809db4dd2f65"; logging-data="188187"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/qLn1bk+gY8aYdxWNoUvEV" User-Agent: ForteAgent/8.00.32.1272 Cancel-Lock: sha1:c1GW1HJfkkqaLNG4RxVmy4PXpL0= Bytes: 1178 On Wed, 27 Nov 2024 08:53:41 -0500, legg wrote: > >Anyone had experience using metalization on glass (mirror) >as a ground plane or shield? > >Any data on conductivity etc? > >RL Why use glass? Why not copperclad FR4?