Im understanding but.... - Electronic Circuits Projects Diagrams Free

JBizzle · 16th April 2008, 03:27 AM

Ok im starting to understand thing somewhat but can you please look at this this is going to be my next project and I only dont understand 2 Values here on the scematic = http://web.telia.com/~u85920178/tx/rf_pa_cct1f.gif

Frequency chart is here:
Frequency Dependent Components
1.8MHz 3.5MHz 7MHz 10MHz 14MHz 21MHz 28MHz
C4 1800pf 1000pf 470pf 350pf 150pf 100pf 91pf
C5 2700pf 1800pf 820pf 610pf 330pf 220pf 180pf
C6 1800pf 1000pf 470pf 350pf 150pf 100pf 91pf
L1 4.80uH 2.75uH 1.40uH 1.05uH 0.70uH 0.46uH 0.35uH
L2 4.80uH 2.75uH 1.40uH 1.05uH 0.70uH 0.46uH 0.35uH

So whats is 0.70uH again how many turns for inbetween the 21-28mhz.... I need c4-c6 and L1/L2 Values for 11 meter band...... Thanks!

i know that this is a push pull amp also. here is the whole page im following:
http://web.telia.com/~u85920178/tx/r...t_00.htm#clasa

stevez · 16th April 2008, 11:45 AM

It is always good to see someone try to learn and build things rather than buy things off the shelf - however - you are proposing to build equipment that would be illegal to operate in many countries, including the US. This might help you understand why you are getting few responses.

JBizzle · 16th April 2008, 12:09 PM

Your right but im a licensed HAM operator, so it legal for me to operate in the 10 meter band..so can u help me with that?? can u explain the chart values??

Frequency chart is here:
Frequency Dependent Components
1.8MHz 3.5MHz 7MHz 10MHz 14MHz 21MHz 28MHz
C4 1800pf 1000pf 470pf 350pf 150pf 100pf 91pf
C5 2700pf 1800pf 820pf 610pf 330pf 220pf 180pf
C6 1800pf 1000pf 470pf 350pf 150pf 100pf 91pf
L1 4.80uH 2.75uH 1.40uH 1.05uH 0.70uH 0.46uH 0.35uH
L2 4.80uH 2.75uH 1.40uH 1.05uH 0.70uH 0.46uH 0.35uH

im gonna do 28 mhz its legal can u help with that??

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16th April 2008, 03:27 AM	(permalink)
JBizzle	Im understanding but.... Ok im starting to understand thing somewhat but can you please look at this this is going to be my next project and I only dont understand 2 Values here on the scematic = http://web.telia.com/~u85920178/tx/rf_pa_cct1f.gif Frequency chart is here: Frequency Dependent Components 1.8MHz 3.5MHz 7MHz 10MHz 14MHz 21MHz 28MHz C4 1800pf 1000pf 470pf 350pf 150pf 100pf 91pf C5 2700pf 1800pf 820pf 610pf 330pf 220pf 180pf C6 1800pf 1000pf 470pf 350pf 150pf 100pf 91pf L1 4.80uH 2.75uH 1.40uH 1.05uH 0.70uH 0.46uH 0.35uH L2 4.80uH 2.75uH 1.40uH 1.05uH 0.70uH 0.46uH 0.35uH So whats is 0.70uH again how many turns for inbetween the 21-28mhz.... I need c4-c6 and L1/L2 Values for 11 meter band...... Thanks! i know that this is a push pull amp also. here is the whole page im following: http://web.telia.com/~u85920178/tx/r...t_00.htm#clasa

16th April 2008, 11:45 AM	(permalink)
stevez	It is always good to see someone try to learn and build things rather than buy things off the shelf - however - you are proposing to build equipment that would be illegal to operate in many countries, including the US. This might help you understand why you are getting few responses. __________________ stevez

16th April 2008, 12:09 PM	(permalink)
JBizzle	Your right but im a licensed HAM operator, so it legal for me to operate in the 10 meter band..so can u help me with that?? can u explain the chart values?? Frequency chart is here: Frequency Dependent Components 1.8MHz 3.5MHz 7MHz 10MHz 14MHz 21MHz 28MHz C4 1800pf 1000pf 470pf 350pf 150pf 100pf 91pf C5 2700pf 1800pf 820pf 610pf 330pf 220pf 180pf C6 1800pf 1000pf 470pf 350pf 150pf 100pf 91pf L1 4.80uH 2.75uH 1.40uH 1.05uH 0.70uH 0.46uH 0.35uH L2 4.80uH 2.75uH 1.40uH 1.05uH 0.70uH 0.46uH 0.35uH im gonna do 28 mhz its legal can u help with that??