Is Lindsay?s ?SM? a fraud?

[eldarion]

@loner,

Would you mind posting a quick schematic of what you are proposing?  This circuit sounds like it could help significantly with a problem I am having...

Thanks!

Eldarion

[nickc44]

@Paul

Do you think ne555's ( thats what I have ) are OK for this application
I will look at the PDF and try to get some Ideas
If you could make a schematic of a circuit after pin 3 I would
appreciate  it... you know a pictures worth a thousand words
thanks

@ Otto

So you or someone has used synthetic oil and it stopped working
That doesn't make sense ( not that a TPU does Ha HA ) did you ever try it without exposed wire
or has any one els ?

Nick

[otto]

Hello all,

@Nickc44

I didnt try it in oil but SM tried it and it was really not good. You know that we have a vibration when the TPU works. But in oil or another liquid there cant be a vibration.

Edit:

the TS555 is much faster, lower consumption......in short, much better.

Otto

[pauldude000]

@nickc44

TS555CN's are rated the highest I have found in the 555 timer category concerning frequency. The standard bipolar 555 has a max freq of 500Khz, while the cmos 555 series ranges from 1Mhz, to the TS555CN at 2.7Mhz. I have had success overclocking the cmos varieties, but not the bipolar. Interesting, you said you tried the circuit and achieved 3 to 4 Mhz using standard ne555 BIPOLARS?? Awesome! Good job!

Concerning the schematic, use figure2 in the pdf, just like I told otto. It resembles a push/pull oscillation circuit, but is actually a source/sink drive circuit. For instance, an IRF840 and similar may well need to source/sink 1.5A or more to completely saturate the gate junction for full conduction, where the 555 function generator circuit can only source/sink 200ma. (I earlier didn't take this into account when I drew up the circuit, and it explains low amperage throughput problems I have been noticing.)

@otto

Sources of the TS555CN online:

Newark
Digi-Key
Sierra IC
Mouser
Online Components
Allied
B&D
Jameco
GemTek
Oxygen Elec.


Paul Andrulis

Paul Andrulis

[nickc44]

@ Paul

You know I'm not that good I only pointed the 3 or 4 MHz out so you knew what Circuit to reference
Thanks for all the help.. I will pick up the 555 timers you have suggested

How is your TPU working have you tried Otto's config as you know my config
is on hold waiting for parts I am going to use batteries power for testing

Nick