Homebrew PCBs

18.05.2003 21:00:55, "Zoran A. Scepanovic" <zasto@...> wrote:


you are right.
when i last thought of building a new exposure unit the uv fluorescent lamps were sold at 300eur each. i 
don't know why, the same shop has it for 8 eur or  so.

oh, now i see the problem.
the daylight halogene costs only eur 6, sorry....
this was a quite important mistake.. thats the problem with the eur if you only know the price in 
schilling (old currency) and forget to convert it. 

sorry for that.
but you are right, uv fluorescents are quite cheap now.

but please also consider the undercutting effect if you want to make very fine tracks and have not ideal 
flat pcb and transparencys.

regards
stefan


>Hello Stefan,
>
>18. May 2003, 21:20:47, you wrote:
>
>
>    For  EUR 75.00 you can make more than one exposure unit that I described
>    in reply on one other post in this thread.
>
>    2 (two) UV-A fluorescent lamps made by Philips:               EUR  5.00
>    2 (two) pairs of lamp holders with integrated starter holder: EUR  1.50
>    2 (two) 20W fluo ballasts:                                    EUR  5.00
>    Some wires for interconnecting, some MDF for box, mains cable,
>    homebrew countown timer with PIC microcontroller:             EUR 30.00
>                                                                  =========
>                                                          TOTAL:  EUR 41.50
>
>    Don't  hold  me for all the prices that I've mentioned because I can not
>    dig  through  all  my sent messages where (on this forum) I gave all the
>    prices for the stuff that I've bought.
>
>-- 
> Best Regards,
> Zoran
> mailto:zasto@...
> www.zas-elmed.co.yu
>
>
>