EF 89, Tube EF89; Röhre EF 89 ID841, Vacuum Pentode
The effect is called Partition noise and makes the Pentode noisier than a Triode. The EF86 is type with minimised noise, only a little more noise than a Triode. Perhaps the screening then is not …
EF89 @ The Valve Museum - r-type.org
The EF89 is a miniature RF voltage amplifier. Mullard describe the EF89 as a variable μ pentode for use as an RF or IF amplifier in FM/AM receivers and is designed to work with a tuned …
欧洲电子管收音机常用管 - 〓电子管技术区〓 - 矿石收音机论坛
2009年5月11日 · 欧洲收音机中有代表性的德律风根收音机用管常见配置：1 x ECC85——FM接收1 x ECH81——变频2x EF89——中放1 x EABC80——检波鉴频低放1 x EC92——倒相2 x E ...
HIFIDIY论坛-德律风根拆机旧电子管EF89 - Powered by Discuz!
2023年8月18日 · 德律风根拆机旧电子管ef89,仔细看图，实物拍摄的，都有菱低，没有测试仪器，装在老收音机上测试性能完好，80元一个包邮，看好下手，售出不退。 回复
JNR Class EF58 - Wikipedia
Owned by JR East and based at Tabata Depot in Tokyo, this locomotive was built in 1953 by Hitachi specially for use as the official Imperial Train locomotive, a role it performs to the …
JNR Class EF81 | Locomotive Wiki | Fandom
The JNR Class EF81 is a Japanese dual-current electric locomotive operated by the Japanese National Railways and its successor companies since 1968. The EF81 was developed …
EF89_PDF_数据手册_Datasheet_规格书 - 半导小芯
半导小芯为您提供EF89的资料查询：数据手册查询，规格书查询，datasheet查询，IC查询、替代型号查询等相关信息，帮您快速找到EF89的数据手册、规格书、datasheet等芯片PDF资料。
Ef89 Tube Datasheet - Everything You Need to Know
The Ef89 tube showcases impressive specifications, including a wide frequency range, high voltage tolerance, and efficient power consumption. With its broad frequency response, it …
EF89 @ The Valve Museum - r-type.org
The EF89 is a miniature RF variable μ voltage amplifier pentode for use as an RF or IF amplifier in FM/AM receivers and is designed to work with a tuned anode circuit. The only visible part of …
产品｜美国电子烟市场新动向：智能化趋势渐显 超大口数/可拆卸 …
JNR MediaMax 40000是电子烟品牌JNR最新推出的产品，以其21m 大容量烟油和40000口的超大抽吸口数为特点，早在8月份，2Firsts就已发现该品牌开始布局“智能手机电子烟”产品，如此 …