My Broom Pro

Show and tell for your homebrew nv projects. DIY 'Stickies' here too.
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Torchwood
Posts: 1601
Joined: 04 Oct 2012, 23:25
Location: Barnet, london

Re: My Broom Pro

Post by Torchwood » 23 Feb 2015, 18:48

85mm 1.6 hasn't got a iris. I favour them with an apperture
I've noticed, that 100mm 1.5 lens get used in a few night vision Units. Almost all of them use it.


Must be good. One went yesterday around £175 delivered. Haven't seen anymore around. Must be bees knees :D


Toni
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Plowboy
Posts: 301
Joined: 19 Nov 2012, 12:15
Location: Victoria, Australia

Re: My Broom Pro

Post by Plowboy » 27 Feb 2015, 17:35

Sorry if this has been posted before but has anyone got a wiring diagram for this? I want to be able to leave the battery in the shade section for charging but I am going to try having a bayonet fitting to make removal for charging and storage easy.

Could someone post a diagram?

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gypo
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Joined: 10 Apr 2014, 16:36
Location: wales

Re: My Broom Pro

Post by gypo » 27 Feb 2015, 17:59

Image
G

Hamish
Posts: 115
Joined: 20 Jul 2013, 20:20
Location: Doncaster

Re: My Broom Pro

Post by Hamish » 28 Feb 2015, 00:15

Image

This worked for me.

Hamish

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some bloke
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Joined: 27 Jan 2012, 16:14
Location: Cornwall or Leicester

Re: My Broom Pro

Post by some bloke » 28 Feb 2015, 04:51

Looks like a robot with flippers. :angel:
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Torchwood
Posts: 1601
Joined: 04 Oct 2012, 23:25
Location: Barnet, london

Re: My Broom Pro

Post by Torchwood » 28 Feb 2015, 08:03

This is mine.
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Toni
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Plowboy
Posts: 301
Joined: 19 Nov 2012, 12:15
Location: Victoria, Australia

Re: My Broom Pro

Post by Plowboy » 28 Feb 2015, 08:21

Cheers fellas. Still toying with the idea of using an RC battery but if I can find a small 12v square job it might be the go. What are those 12v batteries some of you are using out of? Trying to do a search for some but keep getting stuff that is too big or is meant for high discharge rates like planes or drones.

Jirka
Posts: 680
Joined: 04 Jun 2014, 15:31
Location: Rijnland (Holland), Sudetenland (Bohemia)

Re: My Broom Pro

Post by Jirka » 28 Feb 2015, 09:30

If you want a really small 12 V battery, look at Nokia BL-5K. You can connect more of them in series. The size is 41 x 40 x 6 mm and capacity 1200 mAh. I will definitely try them for one of my future builds.

Just one recommendation: do not use 3 cells, only use two.
1. The internal circuits of camera and viewfinder work with lower voltages and the current draw seems to be the same at 12 V and 7,4 V, which indicates the extra voltage is just dissipated by voltage regulators. This is easy to observe when using 7805 to go from 12 V to 5 V for the viewfinder.

2. If you use three unprotected cells, your rig will continue to operate (for a few moments anyway) even when the cells are deeply discharged and no longer usable. With two-cell battery, the camera will shut down before per-cell voltage is too low.

bandoss
Posts: 2
Joined: 05 Jan 2015, 09:30
Location: Latvia

Re: My Broom Pro

Post by bandoss » 03 Mar 2015, 09:51

Plowboy wrote:Cheers fellas. Still toying with the idea of using an RC battery but if I can find a small 12v square job it might be the go. What are those 12v batteries some of you are using out of? Trying to do a search for some but keep getting stuff that is too big or is meant for high discharge rates like planes or drones.
I use "Mini Portable DC-168". Protected, cheep, good size, comes with charger. Tested it with EJ230, and it worked almoust 6 hours (including wiewfinder), enought for me!

Link on ebay http://www.ebay.com/sch/i.html?_odkw=DC ... =&_sacat=0

Or search for Mini Portable DC-168

Paul1961
Posts: 241
Joined: 17 Jun 2013, 11:19
Location: Melbourne, Australia

Re: My Broom Pro

Post by Paul1961 » 06 Mar 2015, 01:03

Can anyone point me to a supplier of push button switches that are push on push off, and small? Tried ebay, waited a few weeks, only to find the switches are momentary, not latching despite being listed as such.
Thanks guys,
Regards,
Paul

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