[Amps] Heat Measurement in Amps

[Gary Smith]

Hi-lo temp switches for an electric dryer might also do the trick.  They too look like TO-3 cases and are available in either various hi or low  temp ranges, 

73, Gary...wa6fgi
  ----- Original Message ----- 
  From: Martin Flynn 
  To: Roger 
  Cc: amps at contesting.com 
  Sent: Saturday, June 12, 2010 4:23 AM
  Subject: Re: [Amps] Heat Measurement in Amps


  Sounds like a Klixon:   
  http://www.sensata.com/klixon/thermostat-precision.htm

  Roger wrote:
  > Back in another life and time when I was working in industrial 
  > Instrumentation and some high powered RF *stuff*, we used some rather 
  > inexpensive "thermostatic switches". These were shaped similar to a TO-3 
  > case and operated at a fixed temp. They would either open of close and 
  > you would purchase them to operate at the desired temp. There is a more 
  > expensive version that is adjustable.   I don't remember who made them, 
  > but I think I might have one or two off some old surplus equipment.  
  > I'll try to remember to look for them next time I'm out in the shop, but 
  > I have 5 power supplies for external HDs I have to find.  My Emtron amp 
  > senses temp and switches the fan speed if the exhaust air gets too hot.
  >
  > 73
  >
  > Roger (K8RI)
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