| Author |
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Tech808
| | Posted on Saturday, January 17, 2004 - 7:09 pm: | 
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NOTE!
I have re-posted this post here for Johnhenre
Saturday, January 17, 2004 - 06:41 pm
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I WOULD LIKE TO KNOW WHAT EACH TRANSISTOR TR1,TRI,TR3,AND TR4 WHAT PART THEY PLAY IN THIS AMP. |
Tech808
| | Posted on Saturday, January 17, 2004 - 7:36 pm: |
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Johnhenre,
For the answer's to your question I would suggest writing direct to RM Italy at:
rm@rmitaly.com
Attn: Davide
Hope this help's
Lon
Tech808 |
Johnhenre
| | Posted on Sunday, January 18, 2004 - 10:01 am: |
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TECH 808 THANK'S FOR REPOST I CAUGHT THIS BUT DIDN'T REALLY KNOW HOW TO REPOST IT. BOB
NOTE!
You are welcome.
Lon
Tech808
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Johnhenre
| | Posted on Saturday, January 24, 2004 - 9:05 am: |
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TECH 808 I DON'T GET IT I HAVE ASK RMITALY TWICE ABOUT THE TRANSISTOR'S ALL I GET IS A (GO TO THERE SITE AND DOWNLOAD THE AMP IN QUESTION)WHAT THE PROBLEM WITH (RM) IF THEY SELL A PRODUCT IT WOULD THERE DUTY (IF IT WERE AMERICAN MADE)TO HELP A PERSON IN ANY WAY TO HELP KEEP THERE PRODUCT ON TOP! IT SEEM LIKE I'VE MADE A MISTAKE AFTER PURCHASEING (8) OF THEM? ANYWAY ARE THEIR A TECH OR PERSON IN COPPER'S FORUM THAT CAN ANSWER THE (ABOVE) QUESTION? |
Tech8541
| | Posted on Monday, January 26, 2004 - 11:59 pm: |
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if you will make it easy for me, i will help. in other words, find the link to the schem for that radio and post it here.
but give me a little time. i have been working about 70hrs a week for the last 2 weeks, so my time has been limited.
if i don't answer in a few days, email me as i may forget with so many posts on this forum. |
Johnhenre
| | Posted on Tuesday, January 27, 2004 - 11:14 am: |
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TECH 8541 THANK'S TAKE ALL THE TIME YOU NEED IT'S JUST THAT I LIKE THIS AMPS AND A LITTLE MODIFICATIONS THIS AMP'S SWING AN ADVERAGE OF 375watts EASY AND CLEAN! (LINK) HTTP://WWW.RMITALY.COM MOD.KL 300/P AMP. (VERSION 3.10) THERE ARE DIFFERENT VER. BUT THIS IS THE RIGHT ONE BOB |
Tech8541
| | Posted on Tuesday, January 27, 2004 - 4:04 pm: |
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we have had an ice storm here in the carolina's. i got to the shop and back fine yesterday. today was another story. i got about a 1/4 of the way there and had a coke tractor trailer slide off the road in front of me. i tried to dodge it and my truck lost grip and got sideways. i then had to gas it into a field to keep from sliding into the coke truck. he took out about 3 other cars..i drove my truck out of the field and came back home. now my wife knows why i call it the 'monster truck'.
my point is that because of this, i was able to get to this faster than i thought...i have nothing better to do at home(besides the cleaning my wife was fussing about).
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so here it is....
TR4 is the pre-amp transistor
TR2 is the relay driver for RL2, also called the keying transistor. it basically closes RL2 when the radio is keyed so that TR5 & TR6 (finals/pills) can amplify the incoming rf from the radio.
TR1 & TR3 work together as the driver and switching circuit for relay RL1. this allows the rf carrier from a radio to bypass the pre-amp. when the amp is on and radio is not keyed into the amp, TR3 is on causing RL1 to stay closed so that rx rf from the antenna can pass through the pre-amp circuit. when the radio is keyed, Tr1 turns on which turns TR3 off, which causes relay RL1 to open so that the rf carrier from the radio bypasses the pre-amp.
by looking at the schem there is no on/off switch for the pre-amp. it would be easy to add one by pulling one leg of R3 up and bridging this with a switch. |
Highlander
| | Posted on Tuesday, January 27, 2004 - 7:42 pm: |
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Dang, glad to hear you came through that ok, Richard! Sounds like we almost lost one of the best radio techs in the country! |
Tech8541
| | Posted on Tuesday, January 27, 2004 - 8:27 pm: |
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it really wasn't all that bad david. max speed at the time of the incident was about 10mph. the cars that were hit had already slid off the road. no one was hurt. conditions have cleared up a lot. infact, i am at work now taking care of some things that i missed earlier today.
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johnhenre, if any of what i posted above was confusing let me know. |
Johnhenre
| | Posted on Wednesday, January 28, 2004 - 7:53 am: |
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thank's tech8541 it was explained the way it should have been,even I a halfway tech could grasp the way you said it because three of the amp came doa new and i've managed to fix two of them by switching tr's just don't have the time for the turn around time it takes for rm's return catch 22 thing they have,sorry about your truck. BOB |
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