Tube 1T4 or Röhre 1T4 ID429, Vacuum Pentode, Miniatur-7-Pin-Base B7G, USA 1940 and RF/IF-Stage shown. Radio tubes are valves.

老头生日会新来的，最近补录播发现经常出现1t4这个词，百度不到不知道啥意思，来个人救救我的好奇心谢谢喵

The 1T4 is a miniature screened pentode for dry battery operation. It was designed for radio reception and is a variable μ RF device. This valve was purchased new in 1963 to build a one valve broadcast receiver.

2017年7月3日 · Seventy-five years ago this month, the July 1942 issue of Popular Mechanics carried the plans for this simple one-tube regenerative receiver. The set was designed with wartime parts shortages in mind, and most parts were …

1.面宽小，只有2个朝南面；（一般1t3、1t4 中间户为3面宽） 2.进深大； 3.同样的面宽能产生更多的建筑面积； 4.1t2户，户数少，品质较好； 5.能利用北面阳台做出公共通道，将公共部分 私有化 二.劣势

2021年1月8日 · 1、从1t4这种产品产生的原因看：在重庆，除部分两江四案核心区外，其他地区限高先容，容积率基本被控制在1.5左右，高度控制在18-24米。

1t4户型什么意思 答： 1t4户型的意思是 【一个楼梯走上每层有四户人家】

2013年7月27日 · 1t4 Single tube receiver schematic clarification? I dug up this old schematic off the net..... It dates to 1948. I am thinking about building it, I have the tube and should be able to get what else I need. Also any guess as to what band this receiver covers? I just had two questions... 1. What is an Impax Coil as stated in the schematic?

Sylvania Type 1T4 is an r f remote cutoff pentode of the miniature style of construction. It is especially designed for radio frequency amplifier service in compact, light weight, portable equipment.