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???
12/28/05 06:27
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#106070 - Actual Requirement
Responding to: ???'s previous message
Andy Neil said:
It would help if you stated your actual requirement!

Do you simply want a variable-power supply to a 9V heater element (nominally 90W)?



The Heater element is Platinum coated with nickel. When i measured its resistance with multimeter it read .5 ohms.

This element is connected to the secondary of 9V/10A transformer whose primary is controlled by a 110 VAC Variac for heating adjustments. The element is used to seal small glass tubes with following dia in millimeter.
outer: 1.7 - 4.8
inner: 1.4 - 2.5

The sealing Temperature range is at 800 deg celcius .

Now my need is to replace this bulky setup of variac and transformers into some thing which is PCB mountable (or) preferring any other alternatives.

Suggestions required.

Thank's
-suresh

List of 11 messages in thread
TopicAuthorDate
Variac Alternatives            01/01/70 00:00      
   heater coils            01/01/70 00:00      
   Why?            01/01/70 00:00      
      Actual Requirement            01/01/70 00:00      
         large heavy pcb            01/01/70 00:00      
            My thought too !            01/01/70 00:00      
      variable - power supply            01/01/70 00:00      
         More detail            01/01/70 00:00      
   Maybe it's too simple, but -            01/01/70 00:00      
      sweet!            01/01/70 00:00      
      It works for me!            01/01/70 00:00      

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