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Hi Richard,
Yes it looks like the power supply is good.
Thanks for the help.
Dave

Hi Mike,
Yes the power supply seems good.
Thanks,
Dave

Yes it will have 80 watts one day and works fine. The next day nothing. A day later works fine with 80 watts again.
That is why we think it is the RF as the tube seems fine when it works.
Thanks,...

Martin,
Thanks for the info.
We will talk to Epilog again as on the first call they said they could not repair the GEM 50 any longer.
Dave

Kay,
Thanks for the recommendation.
Dave

I have a Coherent GEM 50 watt laser tube that I believe has a RF problem. Tube will put out 80 watts intermittently.
Coherent does not support repair of this tube any longer and neither does Epilog....