[Amps] 4000PIV rectifier CR104

[TexasRF@aol.com]

Some hv diodes consist of several 1kv diodes in series. If there were four  
then it would require a voltage of about 2.8 volts for all of them to conduct.  
Many Volt Ohm Meters use a 1.5v battery for the low ohms scales and in this 
case  is not enough for conduction. If the meter has a higher voltage for 
higher  ranges, you might see conduction.
 
You can also connect the diode under test in series with a resistor and use  
your 13.8vdc shack power supply as a higher voltage current source. If you 
used  a 1k resistor, you would expect to see about 11ma or so in the forward 
direction  and hopefully zero ma in the reverse direction.
 
73,
K5GW
 
In a message dated 8/29/2005 12:43:26 P.M. Central Standard Time,  
ve3yn at hotmail.com writes:

Anybody  familiar with the RCA CR104 4000PIV rectifier. I am not getting any  
continuity either way. Six out of six NC. Just using a basic  multimeter.
VE3YN

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