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Need help: Current increase of TTL output

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ptm82379

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I am trying to deliver .2A needed to the base of a 2n6059. My frequency generator TTL out only delivers between 66mA and .1A

I have a 680 ohm resistor before the base of the darlington to deliver the frequency.

The TTL impedance is 50 ohms.

How can I get the necessary current to the base of this darlington without changing the frequency. I could work around the frequency change with a counter and just adjust accordingly but id like to do it as cleanly as possible without distorting the waveform.

Here is the datasheet on the transistor: http://www.datasheetcatalog.com/datasheets_pdf/2/N/6/0/2N6059.shtml

Here is a link to my frequency generator: https://www.electro-tech-online.com/custompdfs/2011/09/4017B_manual.pdf

This isnt the exact gen but the specs are the same...mine is older but same model minus the "b"

Thanks for any help.
 
Why 200mA on the base? That is the max the part can handle. I think the 66mA will be fine. How much collector current are you pulling?
 
When I factor in the 680 ohm resistor I get a base current of 4ma~8ma.

Here is a description of the circuit. Click on drawing for the schematic.
https://www.royalrife.com/em8v.html

The only components that I have changed are the cap to a 10,000uF 50v and the darlington to a 2n6059.

Im not sure what the current on the collector is...

The voltage in the board is 12v to power the coils and the voltage to the base is between 2.5 - 5v
 
According to the data sheet Vce sat information you can use a minimum Beta (gain) of 100 to fully turn on the transistor. So just divide the transistor collector current by 100 to get the minimum required transistor base current.
 
Ok so I am going to be soldering this all together tomorrow.

Is there anything else that needs to be changed before soldering.
The only change is going to be swapping the 680 ohm resistor for a 68 ohm resistor.

What could I do to isolate my frequency generator from backfeed EMF?
 
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