"John Fields" schreef in bericht
...
On Thu, 12 May 2011 16:23:57 -0500, John Fields
wrote:

On Thu, 12 May 2011 13:45:28 -0700, Jim Thompson
wrote:

On Thu, 12 May 2011 21:16:15 +0100, "Ian Field"
wrote:


"Jim Thompson" wrote
in
message ...

Post your schematic or a link.


Its at the same location as my other PC with no internet.

Vcc is clamped by a 16V zener and has 680u + 334 mylar all fed by 68 Ohm
from VDD.

With CR= 3n3 & 8k2 its a standard astable except the CR is driven by pin
3
instead of pin 7 + pullup resistor.

There is the customary 10n from pin 5 to GND.


How do you post to SED ?:-)

...Jim Thompson
---
Indeed.

He could easily post an LTspice *.asc netlist to any of the text
groups or, using abse, post the same netlist as an attachment, which
will execute if the association is made between .asc and the LTspice
executable.

Failing that he could attach even a scanned, hand-drawn sketch to
abse.

---
Or, God forbid, an ASCIImatic.

--
JF

Well, it's not that bad. Much better anyway then the hand drawn flimsies
some other persons tend to provide
___
+-----+------------+----|___|-----
| | | 68
+-----------------)-----)-------+ |
| |8 |4 | |
| .-----------------. | |
| | V r | | |
| 7| c e | | |
| -|dis c s | | |
| | | | |
.-. | | | |
| | | | | |
| |8k2 | | | |
'-' | | | |
| 6| | | |
+-----------|thr | | |
| | | | |
| | |3| |
| | 555 out|-+-- |
| | | |
| | | |
| 5| | |
| +----|cnt | |
| | | | |
| | | | +----+-------+
| | | | | | |
| | 2| | | | |
+------)----|trg G | - | | +
| | | N | / --- ###
| | | D | Z16V - --- ---
--- --- '-----------------' ^ |330n |680u
---3n3 ---10n |1 | | |
| | | | | |
+------+-------------+---------------+----+-------+---
created by Andy´s ASCII-Circuit v1.24.140803 Beta www.tech-chat.de


petrus bitbyter