>
>
>
>> Now I understand the Grate parasitic debate and how long standing debates
>> become feuds but do we really have a serious debate on the cooling
>> capacity of the TL922A ? I thought that the good cooling system almost
>> compensated for the "weak" power supply. Cooling has never been a topic of
>> complaint with anyone I have talked to that has one. just my 2 cents
>> worth and if you figure for inflation.....well you get the idea. Dave /
>> WB0PKK
>
>Please read my post carefully and correctly.
>
>I said the cooling system in the TL-922 was not adequate to cook
>the tubes in at 300-400 watts dissipation. That is a continuous duty
>application.
The 922 has an anode supply that has a continuous capacity of c. 250w per
tube.
>
>If you doubt this, do some temperature tests on the tube seals with
>300-400 watts dissipation per tube CCS.
This is not possible because the power supply will shut down due to
excessive heat buildup. // I did a test of the cooling system in the
TL-922. I was pleasant.y surprised at how well the cooling system
works. A good clue is to look at the paint on the glass of the tubes.
Red is the orig. colour. In my 922, the paint is still red after ten
years. If the oooling is inadequate, the colour of the paint will
change to brown.
>
later, Tom.
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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