General Electric CT-61A Power Line Carrier Repair

[constantlylearning]

Does anyone know of a facility that will repair a General Electric CT-61A power line carrier transmitter? Normally, we'd just upgrade the unit to something newer but we are in a bit of engineering/design time crunch and would like to get the unit repaired if possible to avoid having to modify the scheme.

I don't think GE still repairs these units, but I could be wrong. These are 1960's vintage units.

 

[Skogsgurra]

We do lots of vintage gear. Kicking them back into orbit, so to speak. Is this one of their last vacuum tube units?

If so, the first thing to try is to replace the CT, usually an 807.

What type of malfunction is there? Marginal performance? Dead? Ashes?

Coordinates?



Gunnar Englund

http://www.gke.org

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Half full - Half empty? I don't mind. It's what in it that counts.

 

[Skogsgurra]

CT: read VT.

Gunnar Englund

http://www.gke.org

--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.

 

[constantlylearning]

I don't think this is a vacuum tube unit. The instruction manual shows a lot of schematics with BJT's and diodes. I don't see any tubes.

We think the oscillator circuit (maybe the crystal) has failed. It does not appear to be a catastrophic failure. We just don't have the expertise to diagnose the problem.

By coordinates, I assume you mean, "Where are we located?" We are in the United States.

 

[Skogsgurra]

If you have the manual and diagrams, I think that someone in the neighbourhood could have a look at it. Wait for someone to see this. Or contact the nearest Amateur Radio Club. They have experienced members that can help you. I'm in Sweden myself - probably not worth the trip.

Gunnar Englund

http://www.gke.org

--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.

 

[constantlylearning]

Yeah. That might be quite a trip. Thank you for your suggestions!