[Amps] DIODE PIV Confusion

[Mike Tubby]

On 29/06/2011 19:11, Dr. David Kirkby wrote:
> On 06/29/11 07:03 PM, Ron Youvan wrote:
>> Jim Forsyth wrote:
>>
>>> How would you measure the PIV?
>>     You can measure the breakdown Voltage with a scope, ac power supply and a resistor.
>> The "PIV RATING" is a breakdown Voltage that their products shall not fall below.
>> 40 years ago I measured many 1N4001's (50 Volt at 1 Amp.) and most broke down around 155 Volts.
> Sounds like a cheap source of 155 V "zener" diodes - or to be more precise
> "avalanche" diodes!
>
> (Only joking, I'd rather use a diode designed as a voltage regulator)
>
> G8WRB

Dave... don't use them to regulate the screen supply of one of your big 
tetrode amplifiers ;-)

Mike G8TIC