[K3CAL] Fwd: K7AGE just uploaded a video

[N3AE]

Probably the hardest part find is the 1N34 diode.  This is a germanium diode, not a silicon diode (difference is in forward voltage drop...0.3 volts vs.7 for a silicon diode).  Makes a difference in the sensitivity of the field strength meter. The 1N34 used to be a common part available at Radio Shack.  Now I think you may have to get it via mail order from any of the electronics housed like DigiKey, JAMECO, etc. 
  
Sounds like a fun (and useful) project. 
  

----- Original Message -----

From: "Jim Tetlow" <k3uga at comcast.net> 
To: "k3cal" <k3cal at mailman.qth.net> 
Sent: Thursday, February 26, 2015 8:04:58 AM 
Subject: [K3CAL] Fwd: K7AGE just uploaded a video 

Sorry, here we go again, this may be a fun project......... 

Sent from my iPad, 73, 
Jim Tetlow 
O!!!!!O 
k3uga at comcast.net 


Begin forwarded message: 




From: YouTube < noreply at youtube.com > 
Date: February 25, 2015 at 22:04:37 EST 
To: Jim Tetlow < jim.de.k3uga at gmail.com > 
Subject: K7AGE just uploaded a video 




<blockquote>

K7AGE has uploaded Let's Build A Field Strength Meter I follow Richard's, KB3VZL,... 		



                                              K7AGE has uploaded Let's Build A Field Strength Meter 
	
Let's Build A Field Strength Meter 


		K7AGE 	

I follow Richard's, KB3VZL, February 2015 QST (page 71) article about building a field strength meter into a DVM. He built the circuit to fit inside a Harbor Freight digital volt meter. You can get these free at Harbor Freight if you have the right coupons. 

I also use my new ISO-TIP battery powered soldering iron. 
http://www.iso-tip.com 

Three capacitors, two diodes and a pot is all that is needed. Build this on a small perf board and it fits easily inside the meter. 

Parts: 
0.05 uF Cap 
470 pF Cap 
0.01 Cap 
1N34 Diodes, you need 2 
50K trim pot 
hunk of perf board 
switch 
connector for antenna 

	

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</blockquote>

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