You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Message

source: https://br.answers.yahoo.com/question/index?qid=20090525124333AAHrJmB
LC circuit question for crystal receiver.

My attempt for a
20 Meters example.

Solve for L
F = 14MHz
C = 10pF

L = 1 / (4π² (14e6)² (10e-12) )

4π² = 39.4784176044
14e6 = 14,000,000.0 squared is = 1.96e+14
10e-12=0.00000000001
1.96e+14 x 10e-12 = 1960
L= 1 / (39.4784176044 x 1960.00)
39.4784176044 x 1960.00 = 77377.6985046
L = 1 / 77377.6985046
L = 0.00001292362 or 12.92 µH

Do the numbers add up?
I know I need to revisit Scientific notation.
Thank You

<blockquote data-quote="LeapFrog" data-source="post: 612187" data-attributes="member: 46697">source: <a href="https://br.answers.yahoo.com/question/index?qid=20090525124333AAHrJmB" target="_blank">https://br.answers.yahoo.com/question/index?qid=20090525124333AAHrJmB</a>LC circuit question for crystal receiver.My attempt for a 20 Meters example.&nbsp; Solve for LF = 14MHzC = 10pFL = 1 / (4π² (14e6)² (10e-12) )4π² = 39.478417604414e6 = 14,000,000.0 squared is = 1.96e+1410e-12=0.000000000011.96e+14 x 10e-12 = 1960L= 1 / (39.4784176044 x 1960.00)&nbsp; &nbsp; &nbsp; &nbsp; 39.4784176044 x 1960.00 = 77377.6985046L = 1 / 77377.6985046L = 0.00001292362 or 12.92 µHDo the numbers add up?I know I need to revisit Scientific notation.Thank You</blockquote>

[QUOTE="LeapFrog, post: 612187, member: 46697"] [SIZE=3]source: [URL]https://br.answers.yahoo.com/question/index?qid=20090525124333AAHrJmB[/URL] LC circuit question for crystal receiver. My attempt for a 20 Meters example. [B][/B] [B]Solve for L[/B] F = 14MHz C = 10pF [B]L = 1 / (4π² (14e6)² (10e-12) )[/B][/SIZE] [SIZE=3]4π² = 39.4784176044 14e6 = 14,000,000.0 squared is = 1.96e+14 10e-12=0.00000000001 1.96e+14 x 10e-12 = 1960 L= 1 / (39.4784176044 x 1960.00) 39.4784176044 x 1960.00 = 77377.6985046 L = 1 / 77377.6985046 [B]L = 0.00001292362 or 12.92 µH[/B][/SIZE] Do the numbers add up? I know I need to revisit Scientific notation. Thank You [/QUOTE]

Top Bottom