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Motorola TLB1413C low band help

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Rfsolutions

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Mar 21, 2012
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I have a Motorola TLB1413C power amp (36-42 mHz) that I'm planing on using for RF SAR work. Can anyone help me with the following questions?
Using a CW signal source, how much power is required to get full power out?
What voltage is the power supply (12 or 24) ?
Are any other bias voltages required to operate the amplifier?

Thanks
 

kb4mdz

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Joined
Apr 28, 2003
Messages
242
Location
Cary, NC
A quick google tells me this is the amp module from a Micor base/repeater. So it should be 12V (OK, 13.8 VDC;) but lots and lots of amperes Like up to 25A. B+ to the red & black leads, but also power control - sense from the amp, and variable DC to control the output power. Right now I can't help you any more; it will require a low-band Micor manual. Which are rather like hen's teeth....

Oh, and the VHF-high amp I believe takes about 200mW of drive; I can't see the Low-band being much different.
 

Rfsolutions

Newbie
Joined
Mar 21, 2012
Messages
4
Thanks for the help. The power terminals are marked as well as input & output. I have a power supply that will work. However the unknown terminals are marked 1,2,3,4 and must be the power control and sense for the amp? If anyone knows which terminals are used for power control and how to apply bias I would appreciate it. If a manual exists for sale (hens teeth) I would be happy to purchase it.
 
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