2011年8月10日 · I have a little headphone amp running Mullard EF80's or EF184 (much quieter). Last night I found a nice pair of E180F tubes in my stock, would these be a straight swap 😕 seems the only pin out difference is that the screen is connected to Grid 3, all other specs seem close.

2011年10月12日 · I was looking for a preamp design using a pair of E180F Pentode's and found this on an old website. My question for the experts is...... from this design what voltage would I expect to see at socket pins 7 & 9 without the E180F fitted.

2014年6月30日 · A few days ago I built my new DIY amp based on PL84 (EI NIŠ) and E180F (TESLA gold pin).

2016年4月16日 · 也就是说，E180F的负偏压0.8V，CD机的信号必须先经过音量电位器衰减才能输入过来，不然会出现正偏了，实测单边峰值0.5V以下可以满功率输出了，所以不会接近0偏压，4欧端电压增益16倍左右，8欧端增益23倍左右。 肉眼观察不出失真的功率为7W左右。 输出牛96铁芯叠厚50，非常普通的绕法，外表只能看到2根跳线，可能分段非常少。 30－20K的频率范围内，前级输出标准参考点为1K频率10V输出电压，牛输出标准参考点为1K频率1V电压，用的仪器为 …

E180F has great bass, detailed mids, punch, maybe highs aren`t too enhanced, but it is clean, balanced, smooth, dynamic, direct and natural – my overall favorite. It has the "right" amplification (A=50,5 times) – input sensitivity is 1Vrms for max. power.

2008年5月4日 · E180F管是一只宽带高频放大五级管，常被欧美国家用于高端仪表仪器和精密设备中，用于早间的飞机、计算机、雷达通讯机站和军方高级设备，其特点是工作稳定，寿命长，高频特性好，大电流工作线性好。 后来用于音频设备后才发现其有许多优点：一是特别适合于现代音乐动态大，输入电平摆幅大的特点，其工作特性曲线，包括屏流、跨导和输出阻抗的变化非常适合现今音源的特性，而且频响宽。 二是工作稳定性好，开机十分钟到十小时，屏流等参数变化非 …

Tube E 180F or Röhre E180F ID18574, Vacuum Pentode, Noval, 9 pin miniature (USA pico-9) B9A and Universal shown. Radio tubes are valves.

Keep your vintage equipment working perfectly with the help of these Mullard E180F tubes. Designed for use as a wide-band amplifier, Mullard primarily created the E180F for telephone carrier systems, measuring equipment and radar equipment.

2017年11月24日 · First, you need a greater bias than 2V you get with the E180F. And, as euro21 says, "The E180F driver tone is a little thin" for an output tube such as 300B.

E180F has great bass, detailed mids, punch, maybe highs aren`t too enhanced, but it is clean, balanced, smooth, dynamic, direct and natural – my overall favorite. It has the "right" amplification (A=50,5 times) – input sensitivity is 1Vrms for max. power.