C-6 cockpit light – Stinson L-5 Club

Tagged: C-6 Cockpit Light

This topic has 8 replies, 5 voices, and was last updated 4 years, 2 months ago by Craig Cantwell.

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- 2022-01-25 at 5:29 am #4735
  Craig Cantwell
  Participant
  Started working on the schematics for the power supply for the C-6 cockpit light, but have run into a small roadblock. The circuit is a vibrator type voltage multiplier, but I haven’t found any specs on what the output is. My C-6 light assembly doesn’t have a bulb in it, so I can’t back into the info that way. Anyone have a C-6 with the bulb and able to come up with a bulb number?
  
  Craig
- 2022-01-25 at 8:22 am #4739
  Sam Taber
  Participant
  Hi Craig,
  
  No lights and no bulbs. I don’t know if any of the following will help or not.
  
  It is for an 12 volt A-4 dual light inverter.
  
  Sam T.
- 2022-01-25 at 8:28 am #4740
  Craig Cantwell
  Participant
  Sam: Does your book have the A-1 listed?
- 2022-01-25 at 8:36 am #4742
  Sam Taber
  Participant
  No sorry it does not . It did not have that C-6 or bulb type listed. It lists 2 more inverters but they are both 2 light 24 vt types.
- 2022-01-25 at 4:54 pm #4824
  Matt Anderson
  Participant
  Here is what the manual says for bulbs for C-6 light: 4 Watt F4RP12/B
- 2022-01-25 at 5:04 pm #4825
  admin
  Keymaster
  Turned this up on a NSN search: HERE
  - This reply was modified 4 years, 2 months ago by admin.
- 2022-01-26 at 10:38 am #4933
  Craig Cantwell
  Participant
  With some chasing of the F4RP12/B, it specs out as an AN3125-1, which now crosses to a F5000 bulb. Running all three numbers down, they’re pretty rare, but there are some on shelves in a couple of locations. I’m a little nervous about dropping notes for quotes on them, but that’s for next weeks chasing. The only place that had pricing on them, was 10$ each, and that was from more than 10 years ago.
  
  Craig
- 2022-02-05 at 5:49 pm #5127
  Bill Gorin
  Participant
  This is what the parts manual shows for the internals of the booster
  
  Bill
- 2022-02-05 at 11:36 pm #5132
  Craig Cantwell
  Participant
  Bill: Got that info and have been trying to track down anything on the R-79 vibrator. I’ve had no luck thru all my normal sources. I may have to actually open up the one in my unit and figure out the internals on it. It’s a 7 pin unit with multiple possible pinouts.
  
  Craig
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