20 Most Recent Yukon NVMT (4x50) Monocular Questions & Answers

'it does not have objective lens'?! Yes, it could be the reason why you cannot see anything. Your NVMT should have a lens in both ends. It's just a regular telescope with some extra features.

The scope may flicker or flash when used in a bright environment. To fix this you should only use a NVMT in a dark. It will restore itself in a few minutes or hours, depending on how long it has been exposed to light.
It may also flicker for the first several seconds of use in dark, before the device corrects itself.
With a severe exposure to bright light for prolonged time the light enhancing unit may damage beyond repair.

Hello, don't worry about it. It is HV to the image intensifier tube. The battery voltage goes through control circuit then to ccfl inverter (here is were dc voltage is switch on and off and switch dc voltage is step up by toroid coil that has two input and only two out puts). By impulsing the coil with two different switch dc voltage on the input this make the current lag the two different phase voltage by 90 degrees. Here is where the strange noise is coming from. The toroid coil is encased in iron case and if half of this iron case is loose, it makes case vibrate so the noise.


Now, the voltage come out of the toroid coil is switching dc (one could call it AC because that what AC voltage is, it switch between positive to negative) this voltage is about 300 to 900 switching DC voltage. This voltage will be applied to a 1/2 wave voltage multiplier (this voltage multiplier with have anywhere four four stages to 10 stages depend on what the input voltage to multiplier is.

Low the voltage out of the ccfl inverter the more stages the multiplier will have.



Now, the voltage multiplier will double the voltage per stage to need image intensifier tube voltage of 12000 to 45000 volts---DC switching or AC what ever one wants to call it. This voltage will bit you but it doesn't have a lot current associated with it, the current would be in the 10 to 15 ua (micro-amps) 1/10X6 amps.



Now, you know. GB...stewbison

hi deshwashin error vod d13 brandt thnks

Yes I do

Visit your local gun shop and have them order them.

copy and paste https://www.bhphotovideo.com/lit_files/90269.pdf

900,000-925,000 made in 1956 https://www.google.com/search?q=savage+stevens+model+94+serial+number+lookup ..

its just 1-2-3-4- with the port bank being 2-4 starting at the top and the starboard side being 1-3. They're all the same be it V-4 or V-6. 6=123456 60* and 90* are the same

If the batteries are worn out or have not be put in properly. You may have to resync your devices the the USB receiver.

1949

Question edited for clarity. Duplicate Question deleted. It doesn't seem to be available https://www.google.com/search?q=Franklin+Chef+FCE-42R+manual ..

All question need FULL 'make model (what it is)'. You posted to optics, so let's guess is a telescopic rifle sight? It is impossible to see and movement as the crosshairs move such a tiny amount. Half a millimetre in the sight is 10 feet at the target. The only way to zero in sights is on a fixed bench rest at the range. If you really think they are faulty, return them to the maker for repair.

Junk bin it and get a proper scope

Whether or not it's worth it to buy a replacement hand control for your NexStar 90GT telescope depends on a few factors:

1. How often do you use the telescope? If you use it frequently and rely on the hand control to find objects in the sky, then it may be worth it to invest in a replacement.
2. How important is the hand control to your observing experience? If you're comfortable manually finding objects in the sky and don't necessarily need the hand control, then it may not be worth the expense.
3. Can you find a cheaper alternative to the official replacement? Sometimes, third-party sellers may offer hand controls that are compatible with your telescope at a lower price.

Ultimately, it's up to you to decide whether the cost of the replacement hand control is worth it based on your individual needs and preferences.