[Boatanchors] PLATE XFMR

[Paul Kraemer]

Bill
I don't know if I can find that watts / pound rule (I have it) but have 
another technique which says that when the secondary voltage under load 
drops 10 pct from no load that is the ccs current rating. Doesn't need to be 
full voltage. I just put them on variac, raise the voltage to a safe level 
and load it with resistor while watching the voltage. Ohms law does the 
rest. Hasn't failed in 40 years. Determined experimentally with known 
transformers.
Paul K0UYA
----- Original Message ----- 
From: "Bill and Liz McHugh" <magoo at isp.ca>
To: <boatanchors at mailman.qth.net>
Sent: Monday, April 04, 2011 11:46 AM
Subject: [Boatanchors] PLATE XFMR


> Some time ago I recall someone providing a "rule of thumb" one might use 
> to estimate the current capacity of a plate transformer based on weight 
> and dimensions.
>
> I have a Hammond with an REL number which is not in any catalog and would 
> like to be able to use it in a supply for an 813 rig I am building.
>
> Anyone have that "rule of thumb" at hand?
>
> Bill VE3NH
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