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You said "If the inverter keeps doing its job, the tube will stay on" ? Have to figure out what the 'inverter' is, then things may clear up a bit.

Thanks, I will read through that stuff. I would think that the neon-signs are fired similarly? Most likely the Anode-Cathode voltage is held on constantly and when the trigger is activated the tube light up and stay lit? OR maybe I am completely wrong here and they do have to be 'pulsed' too?

Yes I am slowly understanding how it works. The power supply has 3 wires, that provide two different voltages. The Anode-Cathode 300-400V and the Trigger that is about 200-300V. The trigger will need to be transformed to a higher voltage of about 4kV to be able to light the gas. So, to start off...

Got an email this morning on this Trigger that is on sale, $5 for 4ea.Trigger

RS485 thanks for all the info. You were right, the "black box" is a head light flasher. Got it all working!! Fun stuff. Wish I had some time to play with the Xenon bulbs and trigger coil/transformer. Gonna put some on the shelf so when a rainy day comes by and I don't have anything else to do I...

So, how do you wire in the trigger coil for a bulb for the Whelen CSP690 and what coil to use?

Thanks for all the info. I'll look into this when weather settles down, been snowing like crazy out west lately! Yes I think only a small part of the Whelen system is still set up functional. I believe there are only 4 Strobe bulbs installed and working right now on a Safari Van (I think 3...

So it appears that every bulb has to have its own trigger pulse? Or would imagine if two bulbs are fired at the same time then possibly they could use the same trigger signal ? It appears that all 6 outputs on the CSP690 have 3 wires, Anode - Cathode and Trigger. And then I would assume that...

firebuff17 - There is also a UPS690 wired into the mix!!! Again I don't know what is actually powering the bulbs on my vehicle. I thought that the UPS690 was only a power supply and not a "Blinker"? Can the UPS690 and the CSP690 be used individually? Per the pic it looks like the UPS690 is also...

RS485 - I do recall something similar to the "RETUBES" bulb picture that you posted where the bulb had quite a lot of silicone around the bottom where it was fitted to the light fixture. If there also is a trigger coil inside the silicone I do not know.

RS485 you stated "You'll have to put a trigger coil in there somewhere". I have no idea how my system is wired OR how it works but there is this "black box" wired into the mix. Does every bulb have to have it's own trigger and does it need to fire independently for each bulb and each flash OR...

Thanks for the reply, I'm gonna get me some of these to put on the shelf. I think last I checked I had one out of my four burnt out so I'll try this.

I read this as 15W per output no matter how many outputs used...

Xenon bulb Requires 300V to 400V anode to cathode voltage and 4kV trigger. Can handle up to 50W per flash.

I understand that the Whelen CSP690 has 6 outputs with 15W each for a total of 90W. What would happen if one would use a 50W bulb instead of a 15W? Will I burn up the CSP690 or will the 50W bulb just produce 15W? What if I just replace one of the 4 bulbs used with a 50W and the other three are...

Working again!

found the problem, it was a trace on the circuit board that had a bad solder connection and over time heated up and disintegrated.

There is a Tyco relay that connects one point to 12v battery power and I feel this should also provide power to the LM78L05 voltage regulator! I can only measure connection to one point that doesn't go to any component! What am I missing??

pics of the voltage regulator location LM78 and also a pic from the backside of the circuit board with some notes of measurements I have done

circuit board

The unit I have quit working. I have tried to find the cause without luck so far. I can't figure out how the low voltage (5V dc) works or actually how it gets it's input voltage. The voltage regulator (LM78L05) does not get any input voltage (12V dc). When I apply 12V dc at the regulator it...