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Need Help Identifing Transistors

alfa88

Dec 1, 2010
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I tore into a 20 year old pager radio and these transistors were in the power amp section. The boards they are on were mounted on massive heat sinks. I tried a Google search and a NTE cross ref and came up dry. A Motorola 587-3737-000-B and a RFP100-100RH (manufacturer unknown).
 

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davenn

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Sep 5, 2009
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The RFP100-100 is an atteuator resistor ( Not a transistor)
100W rating and 100Ohms resistance and rated DC - 2GHz
I see items from this company on a number of RF units I work on

Google is your friend :) the first hit was for that device ;)

You will probably find that that part # on that Motorola device is an inhouse number and you wont find any references to it
it will be a device made only for another RF company to their specifications. I suggest that because it doesnt mantch any of the standard Motorola numbering systems. Motorola will NOT release data for it




Dave
 
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chris309

Jun 15, 2012
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Jun 15, 2012
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m 987-3737

View attachment glenayreamp.bmpThe Motorola m 587-3737 is a custom rf transistor used in a known pager power amp. these devices are capable of 45 watts cw in the 900 to 960 mhz. B+ of 26 votes.
the bord you have has a part # of 263-0019-035. and the power amp palate can delver 90 watts.
the other 2 components are 100 ohm ballast resisters.
with 6 watts drive per transistor will produce full power.
good luck and have fun.
 
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Daugherty

Jun 24, 2022
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Jun 24, 2022
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After 25 years in the paging industry I found a Glenayre Amp that needs that transistor. I should have bought Hen's teeth when they were available. Hindsight 2020! So now I am happy to buy junk PAs.
 

megahan9

Jul 14, 2022
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Jul 14, 2022
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After 25 years in the paging industry I found a Glenayre Amp that needs that transistor. I should have bought Hen's teeth when they were available. Hindsight 2020! So now I am happy to buy junk PAs.
I have lots of Glenayre equipment and many of these Motorola transistors would you willing to purchase
 

megahan9

Jul 14, 2022
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Jul 14, 2022
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What do you have and what are you asking?
I have a lot of old telecommunications equipment I’m trying to sell it before I scrap things for gold I was seeing if people might value it more not scrapped and as is if you would like to email me at [mod edit: private E-Mail removed for privacy reasons. Please use PM (conversation) for contact] I have a lot of inventory I can send photos to you
 
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roughshawd

Jul 13, 2020
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Jul 13, 2020
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try alldatasheets.com
boo hoo!
you just rained on a parade in 2000...
good luck.
 
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