Old brown PCBs

[ELORG]

Hello,

I'm wondering, is it possible to obtain those old-school brown PCB kits
which were in use before fiberglass became the standard for PCBs? You
know, the stuff that stinks a whole lot when on fire.

I'm about to build a few "retro" circuits using a etchant-resistive pen
method, and an old-school brown PCB would've been an incredibly nice touch!

Elorg

 

[Gerard Bok]

On Fri, 10 Dec 2004 22:54:39 +0100, ELORG <bljabljablja@blja.com>
wrote:

I'm wondering, is it possible to obtain those old-school brown PCB kits
which were in use before fiberglass became the standard for PCBs? You
know, the stuff that stinks a whole lot when on fire.

I'm about to build a few "retro" circuits using a etchant-resistive pen
method, and an old-school brown PCB would've been an incredibly nice touch!

Search e-bay for 'pertinax' ?

--
Kind regards,
Gerard Bok

 

[Michael Black]

ELORG (bljabljablja@blja.com) writes:

Hello,

I'm wondering, is it possible to obtain those old-school brown PCB kits
which were in use before fiberglass became the standard for PCBs? You
know, the stuff that stinks a whole lot when on fire.

I'm about to build a few "retro" circuits using a etchant-resistive pen
method, and an old-school brown PCB would've been an incredibly nice touch!

Elorg

That stuff was junk when it was common, even to make something look "original"
I think you'd be making a mistake using it.

Micahel

 

[Nicholas O. Lindan]

"ELORG" <bljabljablja@blja.com> wrote

I'm wondering, is it possible to obtain those old-school brown PCB kits
which were in use before fiberglass became the standard for PCBs?

The 'brown stuff' is known as paper-phenolic. It is still in use, and
is far more popular than fiberglass.

Fiberglass is only needed for plated through hole and multilayer. And
satisfying the Army - fungus doesn't like it as much as paper.

You know, the stuff that stinks a whole lot when on fire.

I love the smell of burning electronics in the morning.

I'm about to build a few "retro" circuits using a etchant-resistive pen
method

Not a good idea. Get photo-resist coated boards - they make some that
expose quickly with a fluorescent desk-lamp - and they don't cost more than
a $ or so more than plain ones. Photo resist develops in a warm 1% solution
(w/w) 'Red Devil Lye Drain Cleaner' (don't use Drano - it's got additives).
Use a freebie/obsolete PCB layout program and print out on velum with a
laser printer or good inkjet to make the artwork.

and an old-school brown PCB would've been an incredibly nice touch!

Open up your DVD, HDTV, Dolby XX.xx receiver, notice all the 'brown pcbs',
ultra fine surface mount, even.

--
Nicholas O. Lindan, Cleveland, Ohio
Consulting Engineer: Electronics; Informatics; Photonics.
Remove spaces etc. to reply: n o lindan at net com dot com
psst.. want to buy an f-stop timer? nolindan.com/da/fstop/

 

[Airy R. Bean]

Synthetic-Resin-Bonded Paper or SRBP.

Trade name is "Paxolin"

"ELORG" <bljabljablja@blja.com> wrote in message
news:cpd5u6$oj3$1@sunce.iskon.hr...

I'm wondering, is it possible to obtain those old-school brown PCB kits
which were in use before fiberglass became the standard for PCBs? You
know, the stuff that stinks a whole lot when on fire.
I'm about to build a few "retro" circuits using a etchant-resistive pen
method, and an old-school brown PCB would've been an incredibly nice
touch!

 

I believe you're looking for XXXP circuit board laminate material.

http://www.polymerplastics.com/composite_xxxpc.shtml
Good luck. Harry C.

 

[ELORG]

Search e-bay for 'pertinax' ?


'Pertinax' is probably a brand name... it's just phenolic.

...Jim Thompson

Thanks, I'll try to get my hands on this stuff. DIY stores in my area
don't seem to have anything but fiberglass, though.

 

[Jim Thompson]

On Fri, 10 Dec 2004 23:20:51 GMT, bok118@zonnet.nl (Gerard Bok) wrote:

On Fri, 10 Dec 2004 22:54:39 +0100, ELORG <bljabljablja@blja.com
wrote:

I'm wondering, is it possible to obtain those old-school brown PCB kits
which were in use before fiberglass became the standard for PCBs? You
know, the stuff that stinks a whole lot when on fire.

I'm about to build a few "retro" circuits using a etchant-resistive pen
method, and an old-school brown PCB would've been an incredibly nice touch!

Search e-bay for 'pertinax' ?

'Pertinax' is probably a brand name... it's just phenolic.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

 

[ELORG]

Nicholas O. Lindan wrote:

The 'brown stuff' is known as paper-phenolic. It is still in use, and
is far more popular than fiberglass.
Hello,

Sorry for the confusion - what I was looking for is the trade name of
the aforementioned stuff. I'm sick and tired of spending hours sprawled
over the drill, making holes in fiberglass boards...

I'm about to build a few "retro" circuits using a etchant-resistive pen
method


Not a good idea. Get photo-resist coated boards - they make some that
expose quickly with a fluorescent desk-lamp - and they don't cost more than
a $ or so more than plain ones.

I'll stick with pertinax, and draw all the traces by hand. Not only that
I lack the equipment to do it the modern way, but a CAD program wouldn't
allow me to draw those wavy traces I'm aiming for. Also, photoresistive
boards somehow cost six times more than "ordinary" ones in my place - I
guess that's the price of living in a countryside!

Guess pertinax will do, since I'm building a fairly simple (yet high
voltage) circuit - hope the tracks don't lift upon soldering!

Cheers,
Elorg