PTM: This was not exactly what I was looking for, but I liked it.
So, here you got some beer from Finland (and some foreign
too)
http://www.hartwall.fi/new/merkit_frameset.html

73 de OH1HEK


On Wed, 14 Jan 1998, Lynn Richardson wrote:

> Sorry, guy, my brain misfired this morning.
> The ciruit should have been:
>
>    PIC Output pin
>          |
>    +-----+------+
>    |            |
>    |            |
>    |           ---
>    |           ---    .1 to 2.2 uFd - value depends on drive pulse
>    |            |                     rate, use smaller value with
>    |            |                     higher rates
>    |            |
>    \            \
>    / 1K         /
>    \            \      10-100 Ohms - may not even be needed.
>    /            /                     Limits peak current
>    \            \                     from output pin.
>    |            |
>    |            |
>    |     /------+
>    |  | /       | //
>    |  |/       ---
>    +--|   LED  / \
>       |\|      ---
>       | \       |
>  2N3904  |      |
>          |      |
>         ---   (VCC)
>        ///
>                 ^
> Note the LED anode now connects to VCC, instead of VSS.
> ---------------------------------------------------------------------------
> Lynn Richardson - Design Eng.|WA0ZNL            |Progress Instruments, Inc.
> DC - 1GHz, RX, TX 100W, PLL  |WA0ZNL.AMPR.ORG   |807 NW Commerce Drive
> ASM 6805, 8051, Z8, PIC      |44.46.176.3       |Lee's Summit, MO 64086
> C                            |lrich@proginst.com|P(816)524-4442 F 246-4556
>

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PTM, pasi.mustalahti@utu.fi, ptmusta@utu.fi, http://www.utu.fi/~ptmusta
Lab.ins. (mikrotuki) ATK-keskus/Mat.Luon.Tdk                    OH1HEK
Lab.engineer (PC support) Computer Center                       OI7234
Mail: Turun Yliopisto / Fysla, Vesilinnantie 5, 20014
Pt 02-3336669, FAX 02-3335632 (Pk 02-2387010, NMT 049-555577)
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