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Author Topic: LM383T replacement  (Read 942 times)
KE7WAV
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Posts: 126




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« on: February 12, 2013, 08:38:36 PM »

I need to replace a lm383t in my Ten Tec 525a. The part is no longer made and Ten Tec did not suggest a substitution part for me. Does anyone here have a suggestion on a part I could use to bring my old Ten Tec rig back to life? I did find a few places that claim to have a few old LM 383t's but I am not sure that they are reputable sellers so at this point I would like to look for substitute parts.
Thanks for any help.
KE7WAV
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W9GB
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Posts: 2582




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« Reply #1 on: February 12, 2013, 08:49:35 PM »

Readily available from Jameco. $5.95 USD
http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_24088_-1
Jameco Part no. 24088
Manufacturer   NATIONAL SEMICONDUCTOR
Manufacturer no.   LM383T
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WB6BYU
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Posts: 12980




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« Reply #2 on: February 12, 2013, 08:57:59 PM »

TDA2002 is an equivalent European part number for the LM383 (U4 on the AF/IF board).

They both cross to NTE 1232.
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WB6BYU
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« Reply #3 on: February 13, 2013, 11:47:15 AM »

Jameco (listed previously) carries both the LM383 and the TDA2002.

BG Micro ( http://www.bgmicro.com/ ) carries the TDA2002 at a much lower price.
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KE7WAV
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Posts: 126




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« Reply #4 on: February 13, 2013, 02:58:51 PM »

George and Dale.  Thank you both very much! I am ordering tonight and hopefully back on the air with my "big rig" soon.
73
KE7WAV
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KE7WAV
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Posts: 126




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« Reply #5 on: February 19, 2013, 10:02:05 PM »

Dale thanks for the advice on the TDA 2002. I bought one for $.75  and got my TT back on the air. I even had a QSO with an op in KS with an S8 noise for at 10:30 at night on 40M using only 6 watts out, and got a 559!
For some reason 80 M doesn't seem to be receiving but I will dig into that problem next week. For right now I am just celebrating the fact I can use the rig on all the other bands.
TNX ES 73
KE7WAV
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