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Jyd
Posted on Friday, February 01, 2002 - 10:03 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

307,there is amod for the 2517 that says replaceq-37 2sa43 to a ecg153 to improve clarity and volume of the modulation and run cooler. is there a mod like that for the vr-9000? thanks
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307
Posted on Friday, February 01, 2002 - 11:08 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I don't know , however it is a fact "ECG" is a definate downgrade. ECG is a substitute , a very generic substitute. Actually the 2SA is better...

307
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Jyd
Posted on Saturday, February 02, 2002 - 8:52 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

do you know what size i can use for tr-51 in the vr-9000? a upgrade,so that everything runs cooler.
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Jyd
Posted on Monday, February 04, 2002 - 9:06 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

anyone?
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Bigbob
Posted on Monday, February 04, 2002 - 6:44 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

check out www.nte.com they have several upgrades;their version is 10 amps whereas stock is 7 amps.I believe you can go as high as a 15 amp unit in that case style.
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Sonoma
Posted on Wednesday, February 06, 2002 - 4:13 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

JYD use a nte37 for tr51 it is a 100 watt unit for the modulation.made my signal on ssb a lot cleaner
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Jyd
Posted on Wednesday, February 06, 2002 - 10:37 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

where would i get a nte37? what is it 100watt 10 amp?and i still cant find c-134 wish i could get a picture of where its at.thanks read the post at the top of the page,have you ever heard of that?i think it is the one closer to the front of the vr-9000 i read somthing about changing that.
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Highlander1588
Posted on Sunday, February 10, 2002 - 9:24 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

JYD, you can change tr51 from a 2sb754 to a 2SB817, this is a 100 watt modulator and will stabilize the power on the board as the 754 has a tendancy to be unstable sometimes. I take it you have been on Firebreathers homepage and looked at his ept3600 series mods? Pretty interesting little site.
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Jyd
Posted on Sunday, February 10, 2002 - 12:49 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

no,i got some mods for a 2980 and it says to do this. i figured it would work on the vr-9000 as well,there is also another one you can change to for better clarity and make it louder.
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Sonoma
Posted on Tuesday, February 12, 2002 - 5:01 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

ok jyd share the other item with us dont keep me in suspence.I am always modding something.did a cobra 29 last week and doing a 148gtl this week.I still mess with my 9000 when I can find a mod.Sonoma
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Jyd
Posted on Tuesday, February 12, 2002 - 6:06 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

change tr41 to a 2sa1012 for clarity and volume of the modulation and will run cooler and change tr51 to a 2sb817.improves faster swing rise time to.where can we get these parts?
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Bigbob
Posted on Tuesday, February 12, 2002 - 10:58 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

For those jap. trans. go to radio shack and ask for their RSU parts catalog,you should find them in there,that's where I got my spare 2sb754.
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Sonoma
Posted on Thursday, February 14, 2002 - 3:46 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

thanks jyd I will try it I have already changed t51 to a nte37 which is the same as the 2sb817 just the nte brand.made may radio a lot cleaner on ssb
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Jyd
Posted on Friday, February 15, 2002 - 10:10 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

did it do any better on am?

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