Path: ...!2.eu.feeder.erje.net!feeder.erje.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Jeroen Belleman Newsgroups: sci.electronics.design Subject: Re: CO2 Funny Date: Sat, 25 May 2024 10:53:52 +0200 Organization: A noiseless patient Spider Lines: 23 Message-ID: References: <2k9s4j94256k6gbapd5snscqosn3b53ici@4ax.com> <4dju4jhjb5en96pfflaq64pqbjhv68cbut@4ax.com> <7dp05j1nullro5nq4uqsbtc6s162pd97pt@4ax.com> <3cd15jdqo4mhb730352qcqaqiieij54ggm@4ax.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Sat, 25 May 2024 10:51:52 +0200 (CEST) Injection-Info: dont-email.me; posting-host="5e1bb3c06196a1e315e810b2706d7ca4"; logging-data="2950921"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18513DKKtuaFSQzGhl/tKUb" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Cancel-Lock: sha1:PSu75aDVlVKmz/X5dGuXZ7jbxQI= Content-Language: en-US In-Reply-To: Bytes: 2323 On 5/25/24 04:05, Mike Monett VE3BTI wrote: > Phil Hobbs wrote: > >> Nuvistors are pretty cool for some jobs, even today. >> >> Cheers >> >> Phil Hobbs > > Out of curiosity, like what? I've considered using them in pre-amplifiers for particle beam position pick-ups in accelerators, because they're rad- hard. I never actually did it though. It would have been necessary to shield them from magnetic fields, which is a pain, and the limited lifetime would have been a nuisance, anyway. In the end, I decided to use semiconductor circuitry, kept at some distance from the beam pipe. Jeroen Belleman