REFLECTOR: Switches and Relays

[Ronnie Brown]

There's nothing wrong with relays.  There's a real high probability that you will HAVE to use them if you are planning to use control stick mounted trim switches.  I have 6 of the 10 amp Radio Shack 12 vdc relays mounted in my keel to interface with the elevator, aileron, gear horn silence, and landing light interlock to prevent them from turning on while the gear is up. 

Late model cars have dozens of relays as computers have been used to control everything in your car now.

But I do understand your reluctance - the Brits did have problems understanding electricity back in the 50's and 60's.  We had a Jaguar owner make weekly trips to our NAPA store to purchase fuses.  Then every couple of months his mechanic came in to order a starter, or alternator.    


  ----- Original Message ----- 
  From: NMFlyer1 at aol.com 
  To: reflector at tvbf.org 
  Sent: Friday, August 27, 2004 9:24 AM
  Subject: Re: REFLECTOR: Switches


  Wayne,  


   Well, sorry about your lightening strike luck.  Could be worse though (knock on wood). New Mexico leads the country in people killed by lightening last I heard. 

  I knew most of the information you provided, but I appreciate the refresher. I like to try and avoid relays if at all possible. Perhaps this is due to the number of Triumphs I have owned and restored. I consider relays another failure point that I avoid whenever possible. 
  No, I had not planned on using Lucas (Prince of Darkness) Relays :) 

  You are also correct on the difficulty on finding switches. I looked through all the info that Brian gave me, and found only a couple rockers that would work (no pushbuttons), the rest can't handle the load. 

  Gulf Coast lists some lighted, labeled rockers for about 40 bucks a piece (ouch). The ratings are not in the catalog, so I'll have to call. Do you carry that kind of switch? 

  I had also planned on using ribbon cable up the door beams IF I can find some that will handle the current.  I have located some Very nice relays that are used for 14V DC applications that have a good reliability factor. I may just bite my lip and set the assembly up with ribon cable and relays to cut down on the search time. 

  I had planned on putting the HID landing light switch, Nav & Strobe switches in the overhead panel. I thought there was one more, but my notes are in the hangar. 
  The rest of the panel is wired with good DC switches I ordered at a local shop. 

  Thanks again for your input. 

  Kurt Winker


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