What's the best soldering iron to buy?

[Unregistered]

Condcutive pens

Sure wasn't the cigar that time... I think was the varnish inside... or something like this... white smoke... kind of a fog!

Kind regards,
Max

Whats the other method of conductive pens, there are Silver conductive pens from Circuit works etc, what is th manufacturing procedure of these procedure.

for repairing tracks, and also best pen for redesigning tracks modifications.

Is there any other method or chemical which can be home made using copper, like copper conductive pens or conductive gel for making tracks.

[Unregistered]

Condcutive Pens

for repairing tracks, and also best pen for redesigning tracks modifications.

Whats the other method of conductive pens, there are Silver conductive pens from Circuit Works etc for repairing tracks, and also best pen for redesigning tracks modifications.

What is the manufacturing procedure of these pens like know how

Is there any other method or chemical which can be home made using copper, like copper conductive pens or conductive gel for making tracks.

[Sven]

Ended up finding a Pace ST25 for $20.00

at a garage sale.

[Unregistered]

Silver Conductive pens

Sure wasn't the cigar that time... I think was the varnish inside... or something like this... white smoke... kind of a fog!

Kind regards,
Max

Whats the other method of conductive pens, there are Silver conductive pens from Circuit Works etc for repairing tracks, and also best pen for redesigning tracks modifications.

What is the manufacturing procedure of these pens like know how

Is there any other method or chemical which can be home made using copper, like copper conductive pens or conductive gel for making tracks.

[Max]

Whats the other method of conductive pens, there are Silver conductive pens from Circuit Works etc for repairing tracks, and also best pen for redesigning tracks modifications.

What is the manufacturing procedure of these pens like know how

Is there any other method or chemical which can be home made using copper, like copper conductive pens or conductive gel for making tracks.

Hi,
conductive pens ? Do you mean for repair maybe... yes there are some, silver or copper based varnish.

The varnish is usually mixed with acetone stuff... flamable and smelly. Some aren't like pens... but like bottles with brushes... many use that stuff for CPU overclocking or enabling (of some extended functions/frequency) or also for PSII mods and the like.

The varnish is a compound of pure silver grains (or copper) + additives like acetone based glues and acetone. Usually that stuff require very good mixing , many minutes or a mechanical procedure to mix very well the powder with glue that tend to separate when on the shelf for a while.

The method works cool for repair but really few people use it, as I know, to make more complex stuff like e.g. circuit, cause the layer, though made of pure silver it's really thin and you cannot solder e.g. on it... but use same varnish to bind to components... though... anyway is possible making e.g. also smt stuff this way... if one need that, but it's really difficault and require much skills and ability. The current carry limits make that approach unuseful in higher powered circuits and the like... but good for signal levels etc

There aren't chemical pens or the like to draw PCBs but a number of permanent markers useful, then board must be etched as usually with common products like FeCl3 · 6H2O, very common dark green or yellow/brown compound mixed with water.

There was an interesting method for circuit making ...usually different from veroboard/perfboard (uses dedicated boards or your own): circuit wire wrap using wiring pens... old method but really effective, I've used for digital stuff many times in past.

You mount components on an insulant stuff e.g. bare fibreglass piece, drilling holes etc... then wire-wrap using the pen: it requires soldering on joints but you don't need etching a regular pcb and for small stuff it's competitive and also fast approach though need practice.

The method is useful also for veroboard and other protoboards, cause speed up much the circuit "writing" ... you need to solder joints, of course.

The best example of pen is the ‘Road Runner’ wiring pen , look here:
http://www.rrunner.co.uk/pens/pens.htm

Here some pictures as example of finished board.

Kind regards,
Max

[Unregistered]

Hi,
conductive pens ? Do you mean for repair maybe... yes there are some, silver or copper based varnish.

Kind regards,
Max

now u r complete, but u forgot about Circuit Works silver Pen, they specify them for prototypes....

[Max]

now u r complete, but u forgot about Circuit Works silver Pen, they specify them for prototypes....

Hi,
I never used them... but similar, yes. If they are like the ones I have used... I don't suggest soldering on them... impossible task and big waste of time, at least for me.

I tryed on mine but always the heat from soldering iron melt everything.

I concluded that these articles are good just for repair or jointing components but with varnish itself, not soldering stuff.

It's much more easy draw, also by hand, a pcb and etch it ... make some holes and get what you need than messing with the silver varnish.
Also it's cheaper... cause good silver based products are not so cheap... and you need much ...and they always are about small about useful volume of conductive paint... at least... at my place.

Kind regards,
Max

[Unregistered]

Hi,
I never used them... but similar, yes. If they are like the ones I have used... I don't suggest soldering on them... impossible task and big waste of time, at least for me.

I tryed on mine but always the heat from soldering iron melt everything.

I concluded that these articles are good just for repair or jointing components but with varnish itself, not soldering stuff.

cause good silver based products are not so cheap... and you need much ...and they always are about small about useful volume of conductive paint... at least... at my place.

Kind regards,
Max

U need to use tin plating crystals dipped in water( to plate on copper after u draw with home made pens or circuitworks pens). available from RS components. Tinning chemically will increwase the solderability.....

[Guest]

What are key points to lookout for if purchasing used?

I have the opportunity to purchase a Hakko 937 station for $98. Does that seem like a reasonable deal?

Here's the picture.

http://i18.ebayimg.com/08/i/000/f9/11/62fc_1.JPG

[Max]

What are key points to lookout for if purchasing used?

I have the opportunity to purchase a Hakko 937 station for $98. Does that seem like a reasonable deal?

Here's the picture.

http://i18.ebayimg.com/08/i/000/f9/11/62fc_1.JPG

Hi,
don't know about the price... maybe you can find at less ...but if it works could be ok for most electronic works.

Kind regards,
Max