Re: 555 50% duty cycle

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

two comments on the tunner. I used a smaller pot to limit the frequency
control range. 2. Use high intensity LED's so you can see them when they are
lit
  Robert  H.
  

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Fri, 21 Dec 2001 18:34:20 -0700
> To: tesla-at-pupman-dot-com
> Subject: Re: 555 50% duty cycle
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Fri, 21 Dec 2001 18:47:06 -0700
> 
> Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
> 
> Hi Matt,
> 
> With the origninal 555 non-CMOS timer see page 10 of:
> 
> http://hot-streamer-dot-com/temp/LM555.pdf
> 
> Cheers,
> 
> Terry
> 
> 
> 
> At 07:59 PM 12/21/2001 -0500, you wrote:
>> In a message dated 12/21/01 7:17:09 PM Eastern Standard Time,
>> tesla-at-pupman-dot-com writes:
>> 
>> << Check out page 7 of:
>> 
>> http://hot-streamer-dot-com/temp/LMC555.pdf
>> 
>> Note that this only works with the CMOS version of the 555 but that is the
>> one you want to use anyway.
>> 
>> You may also want to checkout my Tesla coil tuner at:
>> 
>> http://hot-streamer-dot-com/TeslaCoils/Misc/TCT/TCT.htm
>> 
>> Cheers,
>> 
>> Terry
>>>> 
>> I dont have the CMOS type but the type i have works right.I just dont know
>> how to determine the values to use to get the frequency range i need.I know
>> how to with the original 2 resistors and 1 timing cap.There are calcs for
>> that but i cant find any 50% duty cylcle type.
>> 
>> Matt
>> 
> 
>