[time-nuts] Noise down-converter project

[Mike Monett]

The Tonghui has arrived. It is ideal for measuring small RF components. It
has a resolution of 100 microohms, 1 nanohenry and 0.001 picofarad.

There is no need to buy Kelvin clips. It comes with a complete set,
including SMD and ordinary multimeter clips. 

TH2822 series are equipped with the following 
contents: 
•  TH2822/TH2822A/TH2822C handheld LCR meter 
•  Instruction manual (in Chinese)
•  Mini USB Interface Cable 
•  Short-circuit plate 
•  *9V Alkaline battery or 8.4 rechargeable battery 
•  *AC adapter (240V, 4mm)
•  *TH26027A Kelvin clip test leads 
•  *TH26009C SMD test tweezers 
•  Red / Black Banana plugs—Crocodile clip Test Leads 

It also has a USB interface for data transfer. This requires a special
driver available from www.tonghui.com.cn. 

The only problem is the charger is 240V to 12V with a 4mm connector. This
is a problem for North America customers, but the needed chargers appear to
be available at Amazon. For example, see

https://www.amazon.ca/SHNITPWR-Universal-Switching-Adjustable-Transformer/dp/B08N46GMM8/

The manual is available all over the place, for example at

http://file.yzimgs.com/327099/2011101217170714.pdf