That makes a lot more sense glen. Thanks.

Best regards - Bry Carling



> On May 24, 2014, at 3:18 PM, Glen Zook via Boatanchors 
> <[email protected]> wrote:
> 
> The ratings in tube manuals for both the 5U4 and 5Y3 are somewhat confusing.. 
>  There is a rating given for each plate and that is generally around 80 mA 
> for the 5Y3 and around 150 mA for the 5U4.  However, there are 2-plates in 
> each tube and, when one looks at the figures for "half load" and "full load" 
> give the actual performance of the tubes under most conditions.  The actual 
> "normal" configuration of the tubes gives 150 mA for the 5Y3 under "full 
> load" and 300 mA for the 5U4 under "full load".
>  
> Glen, K9STH
> 
> 
> Website:  http://k9sth.com
> 
> 
> On Saturday, May 24, 2014 2:04 PM, K7NKS via Boatanchors 
> <[email protected]> wrote:
> 
> 
> 
> When you say "testing purposes". What are you testing? How long? 
> 
> The 5U4 is a big rectifier with substantially more capability than the 5Y3. 
> Testing a hefty rig like a transmitter could really stress a smaller 
> rectifier tube. Testing a small receiver should be ok for short time. 
> 
> Good idea to check your fire extinguishers, fire/smoke alarms, and fire 
> insurance.
> 
> 73 Chuck K7NKS
> 
> Sent from my iPad
> 
>> On May 24, 2014, at 11:33 AM, "Bob Jackson" <[email protected]> wrote:
>> 
>> Can a 5Y3 be subbed for a 5U4 for testing purposes?
>> 

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