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CCA 10,000GX FM transmitter

R

river radio ranch

Please share information/thoughts/experiences/insights you've had with one of these...
It's early to mid 90's vintage.
power consumption?
I'd love to get a hold of a spec sheet on this model if there's one out there...

thanks for the help
 
GX...what does the X signify? 10000G1 (new in June 1992) I know well...After the factory admitted that they skimped on the number of diodes on each rectifier & sent bigger ones, it ran for 14 years until the station was sold/moved & I lost track of it. Can't say I know anything about the power consumption but CCA's are not known to be power hogs. I selected the 10000G1 for that station and never regretted it.
 
I have one at a station here in South Georgia. Runs fairly efficiently (75%?) with fair tube life on the PA (YU148). Can usually get 2 years, our TPO is around 6800 watts. IPA tube life isn't as good as I'd like (3CX800A7)...usually no more than a year. Pretty simple box that probably won't give you too much trouble if you take care of it. Regular maintenance includes keeping the tuning control threaded rods greased, checking the fingerstock in the the tube sockets and on the tuning sliders, and making sure the wire mesh below the PA tube doesn't get clogged up. Don't trust the meters, verify the filament with a voltmeter. Parts still available from V and J electronics.
 
I've worked with 2 of these - 1 3-phase, 1 single-phase. Both ran close to full TPO and PA tube life was never what I thought it should be. Best I ever got with optional filament voltage regulator was 14 months. Had 2 catastrophic failures (ceramic shattered) of the YU-148. I had much better luck with the 12000GX series that used a 3CX15000A in the final. Just my experience - I still like the CCA boxes for the most part but the 10000GX was not my favorite.

RFB
 
I agree that the YU148 is not the best tube. In our case, the combination of a lower TPO and keeping a very cool/clean room seems to have helped its life. I tried a new one, didn't really last that much longer than the rebuilds, so couldn't justify the cost. If I had to run this box at 10kw, I'd be replacing the tube every year for sure.
 
Best thing you can do with it, if it doesn't have a solid state IPA is to put one in.

Any solid state AMP out there with enough to drive the final can work. CCA used to have a "lunchbox" IPA upgrade for some of their transmitters. Your cost will go down and with a broadband IPA, much better AM noise figures and sometimes stereo separation.

I've had smaller CCA's ate IPA tubes like they were a snack. A lot more reliable after modifying for the solid state IPA. Pays for itself in time and tubes.
 
WNTIRadio said:
I've had smaller CCA's ate IPA tubes like they were a snack. A lot more reliable after modifying for the solid state IPA. Pays for itself in time and tubes.
Click to expand...
I have a 4000G that eats drivers every 14 months...they still look new when they come out and it has a 20 watt exciter so I know it's not being over-driven. Yet the same tube in a 10000G1 lasted twice as long back in the 90's...go figure.
 
level42 said:
I have one at a station here in South Georgia. Runs fairly efficiently (75%?) with fair tube life on the PA (YU148). Can usually get 2 years, our TPO is around 6800 watts. IPA tube life isn't as good as I'd like (3CX800A7)...usually no more than a year. Pretty simple box that probably won't give you too much trouble if you take care of it. Regular maintenance includes keeping the tuning control threaded rods greased, checking the fingerstock in the the tube sockets and on the tuning sliders, and making sure the wire mesh below the PA tube doesn't get clogged up. Don't trust the meters, verify the filament with a voltmeter. Parts still available from V and J electronics.
Click to expand...

I have a 10000GX in Liberty Kentucky I take care of with the same TPO. I've had the same experience you've had, level. Although I've been able to get about 14 months out of a driver. 2 years is all a PA tube is good for.
 
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