It is currently Fri Apr 28, 2017 8:20 am



Welcome
Welcome to imhotep's labs

You are currently viewing our boards as a guest, which gives you limited access to view most discussions and access our other features. By joining our free community, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content, and access many other special features. In addition, registered members also see less advertisements. Registration is fast, simple, and absolutely free, so please, join our community today!


Post new topic Reply to topic  [ 8 posts ] 
Author Message
 Post subject: MAJOR IRO UPGRADE if anybody cares!
PostPosted: Thu Jan 14, 2010 4:09 am 
Offline
Moderator
User avatar

Joined: Tue Nov 11, 2008 8:05 pm
Posts: 183
Location: Indiana, USA
Has thanked: 3 time
Have thanks: 2 time
I have a new relay setup, it has DOUBLE NC CONTACTS
which increases reliability exponentially over the original
"modified" relay. I'll post it @ IRO board if anyone seems
to care about this, board traffic has really dropped off!!!
My new relay is going strong and has ran around a month
continuous, so I think it is a good fix! The trick is getting
a DPDT 12v relay and using BOTH NC contacts, to spread
the sparking and load across 2 real contacts instead of one
"modified" contact, the real silver/cadmium oxide lasts
for a long time at this duty cycle and amperage we use!

Rob

_________________
OPEN SOURCERER APPRENTICE!

...just an electrician... since 1985!


Top
 Profile Send private message  
 
 
 Post subject: Re: MAJOR IRO UPGRADE if anybody cares!
PostPosted: Wed Mar 10, 2010 12:47 pm 
Offline
Moderator

Joined: Wed Aug 13, 2008 11:48 pm
Posts: 1016
Has thanked: 0 time
Have thanks: 27 time
I can hear the violins already hehehe. Don't get disheartened mate


Top
 Profile Send private message  
 
 Post subject: Re: MAJOR IRO UPGRADE if anybody cares!
PostPosted: Sun Mar 14, 2010 6:33 am 
Offline
Moderator
User avatar

Joined: Tue Nov 11, 2008 8:05 pm
Posts: 183
Location: Indiana, USA
Has thanked: 3 time
Have thanks: 2 time
OK, I did that months ago so I need to get out into the shop and get the RS part numbers!!!
It is just Radio Shack cheap parts, but those are mostly universal or so similar to universal parts
that they will work worldwide, so I will post them!!! IT WORKS GREAT!!!
However, Solid State is still better. Sucahyo has several SS diagrams of the IRO so a dedicated
experimenter should check that out!

Back in a day or 2 with the part numbers, it is a simple hookup...

_________________
OPEN SOURCERER APPRENTICE!

...just an electrician... since 1985!


Top
 Profile Send private message  
 
 Post subject: Re: MAJOR IRO UPGRADE if anybody cares!
PostPosted: Fri Mar 19, 2010 5:42 pm 
Offline
User avatar

Joined: Tue Sep 29, 2009 12:08 am
Posts: 19
Location: Southwest Florida
Has thanked: 0 time
Have thanks: 1 time
The Radio Shacks here in SW Florida really suck. I'd have to order the parts online. It's hard to get anything down here. Seems every business caters to the "rich" and the "rich" just pay immigrants (illegal) to do the work. Tampa is a little different, I'll try to contact Imhotep. Maybe he knows where I can get materials.


JustAnElectrician wrote:
OK, I did that months ago so I need to get out into the shop and get the RS part numbers!!!
It is just Radio Shack cheap parts, but those are mostly universal or so similar to universal parts
that they will work worldwide, so I will post them!!! IT WORKS GREAT!!!
However, Solid State is still better. Sucahyo has several SS diagrams of the IRO so a dedicated
experimenter should check that out!

Back in a day or 2 with the part numbers, it is a simple hookup...

_________________
There is nothing "new" in this world. If you know our history, you know our future.
haruspex has been thanked by:


Top
 Profile Send private message  
 
 Post subject: Re: MAJOR IRO UPGRADE if anybody cares!
PostPosted: Sat Sep 11, 2010 1:33 am 
Offline
Moderator
User avatar

Joined: Tue Nov 11, 2008 8:05 pm
Posts: 183
Location: Indiana, USA
Has thanked: 3 time
Have thanks: 2 time
fetching PN's NOW!!!

_________________
OPEN SOURCERER APPRENTICE!

...just an electrician... since 1985!
JustAnElectrician has been thanked by:


Top
 Profile Send private message  
 
 Post subject: Re: MAJOR IRO UPGRADE if anybody cares!
PostPosted: Sat Jan 21, 2012 9:34 pm 
Offline

Joined: Sun Jan 15, 2012 4:58 pm
Posts: 34
Has thanked: 14 time
Have thanks: 1 time
275-218 DPDT Relay
275-220A Relay SOCKET

Use the socket for easy relay replacement

Sorry I did not do this sooner, like LAST YEAR :doh:

_________________
H.D.E. {hyper-dimensional electrician}


Top
 Profile Send private message  
 
 Post subject: Re: MAJOR IRO UPGRADE if anybody cares!
PostPosted: Fri Apr 27, 2012 3:42 am 
Offline

Joined: Sun Feb 28, 2010 9:00 am
Posts: 28
Location: Australia
Has thanked: 0 time
Have thanks: 0 time
i did originally try this set up you mentioned using 2 relays . and yes it works quite well but still the contacts eventually build up and fuse themselves together. i now only use an adjustable input voltage type joule thief solid state type setup to charge most of my batteries.this works a treat on most types of household batteries aa aaa etc and rechargeables too also works extremely well on the smaller cell type batteries. i now have it connected also to an adjustable plug pack so i can regulate the input voltages. its a good car battery desulfator but it does take a long time to desulphate ( min 2 weeks). it just seems to adjust the input voltages according to the battery i connect. ive been using this for about 18 months now with no dramas.
just look up joule thief charger and have fun.


Top
 Profile Send private message  
 
 Post subject: Re: MAJOR IRO UPGRADE if anybody cares!
PostPosted: Fri Apr 27, 2012 10:59 am 
Offline
Moderator

Joined: Wed Aug 13, 2008 11:48 pm
Posts: 1016
Has thanked: 0 time
Have thanks: 27 time
Yes the joule thief works fine


Top
 Profile Send private message  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 


Who is online

Users browsing this forum: No registered users and 0 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
suspicion-preferred