Forums :: Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives :: Books
Support This Site: Contributors :: Advertise


It is currently May Sun 28, 2017 9:29 pm


All times are UTC [ DST ]





Post New Topic Post Reply  [ 13 posts ] 
Author Message
 Post subject: Soldering Iron Tip Saver
PostPosted: Dec Thu 29, 2016 4:29 pm 
Member

Joined: Mar Wed 10, 2010 4:41 pm
Posts: 379
Location: Flat Rock Mi 48134
Although many of us now use a nice temperature controlled soldering station here is a simple circuit that
I have used for over 30 years. It is very handy when using a simple soldering iron.

I built this into a small metal enclosure around 1980. When the switch is closed the iron sees the full line voltage
and operates as normal. By opening the switch the iron gets voltage only during one half of the ac cycle so
cools down from normal operating temperature to save the tip. Closing the switch will bring the iron right back to
the working temperature in under a minute. The neon bulb glows at normal brilliance when the switch is closed
and about half when the switch is open and the iron is idling for a simple indicator.

Larry


Attachments:
solder.JPG
solder.JPG [ 74.93 KiB | Viewed 1639 times ]
Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Dec Thu 29, 2016 7:42 pm 
Member

Joined: May Tue 30, 2006 4:46 pm
Posts: 8887
Location: Santa Rosa, CA
I still like my Weller WTCP. Don't have to worry about over-heating.

The diode/switch arrangement is a good idea, but you may have to wait for the tip to come back up to melt temperature. I saw a holder built for this circuit that used a microswitch. When the soldering iron is inserted in the holder, it clicks the switch "OPEN." When you pull out the iron, the switch closes, automatically restoring full power.

Rich


Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Jan Wed 04, 2017 10:09 pm 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 1984
Location: Riverside, CA
I don't have a temperature controlled soldering iron and for the amount of time I use my iron I can't justify buying one. I'm going to build this but have one question:

Image

Thanks,
Geoff


Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Jan Wed 04, 2017 10:30 pm 
Member

Joined: Nov Wed 05, 2014 8:41 pm
Posts: 61
Location: Chilliwack, British Columbia, Canada
That should be a series resistor, to set the NE-2 at its correct operating voltage and current. IIRC it's around 100k to 150k ohms for 120V operation, depending on desired brightness.


Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Jan Wed 04, 2017 10:35 pm 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 1984
Location: Riverside, CA
Kaj wrote:
That should be a series resistor, to set the NE-2 at its correct operating voltage and current. IIRC it's around 100k to 150k ohms for 120V operation, depending on desired brightness.

Thanks!


Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Jan Wed 04, 2017 10:37 pm 
Member
User avatar

Joined: Jul Mon 26, 2010 8:30 pm
Posts: 19023
Location: Annapolis, MD
That's neat----I built virtually the same thing a few months ago. Then the iron I used it with died.....☹️

_________________
-Mark http://pixellany.com

"It's always something". --Gilda Radner (1946 - 1989)


Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Jan Wed 04, 2017 11:34 pm 
Member

Joined: May Tue 30, 2006 4:46 pm
Posts: 8887
Location: Santa Rosa, CA
Tip saver? I don't need no stinkin' tip saver!


Image

Rich


Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Jan Wed 04, 2017 11:38 pm 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 1984
Location: Riverside, CA
Supergirl just blew her cover.


Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Jan Thu 05, 2017 2:21 am 
Member

Joined: Jun Fri 01, 2007 9:46 pm
Posts: 208
Location: Chattanooga, TN
That had better be supergirl - her fingers are obviously on the hottest part of the iron.

Vince


Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Jan Mon 09, 2017 4:22 am 
Member
User avatar

Joined: Jan Tue 31, 2012 1:55 am
Posts: 1943
Location: Mountains of Mourne. Ireland.
Some Like It Hot.

Image

:) Greg.

thanks for the circuit diagram Larry.


Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Jan Tue 10, 2017 4:37 pm 
Member
User avatar

Joined: May Fri 20, 2016 7:32 pm
Posts: 634
Location: Illinois 62217
Those girls are demonstrating how to make cold solder joints :mrgreen: The girl in the first pic is wearing safety glasses so she won't get cold solder fumes or splatter in her eyes :mrgreen:

_________________
"I know nothing about everything" Sgt. Schultz.


Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Jan Tue 10, 2017 4:49 pm 
Member

Joined: Aug Thu 20, 2015 3:09 pm
Posts: 356
Location: Albion, CA, USA
The other big tip saver is to ditch the wet sponge to wipe your tip off. I got one of those Hakko 599B thingies that are filled with brass wool to clean my tip with. I think it makes a big difference in tip life not to be heat cycled every wipe and it does a better job of cleaning.


Top
 Profile  
 
 Post subject: Re: Soldering Iron Tip Saver
PostPosted: Jan Sat 21, 2017 2:21 pm 
Member
User avatar

Joined: Jan Mon 05, 2009 4:09 am
Posts: 951
Location: Hudson, MA
Fowkes wrote:
Although many of us now use a nice temperature controlled soldering station here is a simple circuit that
I have used for over 30 years. It is very handy when using a simple soldering iron.

I built this into a small metal enclosure around 1980. When the switch is closed the iron sees the full line voltage
and operates as normal. By opening the switch the iron gets voltage only during one half of the ac cycle so
cools down from normal operating temperature to save the tip. Closing the switch will bring the iron right back to
the working temperature in under a minute. The neon bulb glows at normal brilliance when the switch is closed
and about half when the switch is open and the iron is idling for a simple indicator.

Larry


Don't try this with soldering irons that have a base with a step down transformer. The rectified DC will saturate the transformer and blow the diode.

_________________
Eddy


Top
 Profile  
 
Post New Topic Post Reply  [ 13 posts ]  Moderator: Chuck Schwark

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 4 guests



Search for:
Jump to:  




















Privacy Policy :: Powered by phpBB