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Yes I noticed the quote was from nomad. I appreciate the photos. From what I've been reading over the past few years nomad is definitely someone who understands amplifiers. I get the feeling and he could correct me if I'm wrong but he either just was fortunate some might say unfortunate enough to work on enough palomars amp to know them inside and out. He's also helped me with my DNA Phantom. It's unfortunate but the chances are the 300a will be retired and replaced with the 350 Z. I would really prefer two have the 300 a repaired but I don't know if it's financially feasible. It has been rebuilt and when I say rebuilt upgraded capacitors and whatever one could do to that amp to improve the original design of it was performed about a year-and-a-half ago. I don't think it's a major problem. I do know that he is absolutely right and it is the preamp on the 300 a causing the drop-down on my sonars receive. My knowledge and dexterity are about equal. Both being basically non-existent so the chances of me being able to repair it on my own is not likely. I'll change that to a not going to happen. Do you want to repair it for me? After I take the photos and Nomad gives advice on how to if it's possible to repair if u would you be willing to take it on as a job? I have a tech who is very good but is also fairly backed up. I will be sending my tech some other equipment but I wouldn't mind spreading it around. It's always good to know more than one qualified person and considering you've worked on three of them I don't think this should be something too difficult. But then again I don't know that myself. I will take the photos and then wait for Nomads reply. if you're interested after he lets me know what needs to be done I'll pack it up and send it to you. Until then I'm basically using it the way it is. As I mentioned the preamp miraculously works in the on position after 20 something years of not working. As a matter of fact if it's not in the preamp position it affects the receive adversely. The last time I used it I used it with the preamp in the on and it brought everyone signal and the noise of course about 3s units but did not drop out like it did when it was in the off position. Very strange. I doubt it will last long in the problem needs to be addressed. If I get it fixed I will put the 350 Z back in the closet. I enjoy the 300 a very much and so does my FS 2340. Thanks for your interest and replies. 73

<blockquote data-quote="Sonar" data-source="post: 594776" data-attributes="member: 47153">YYes I noticed the quote was from nomad. I appreciate the photos. From what I&#039;ve been reading over the past few years nomad is definitely someone who understands amplifiers. I get the feeling and he could correct me if I&#039;m wrong but he either just was fortunate some might say unfortunate enough to work on enough palomars amp to know them inside and out. He&#039;s also helped me with my DNA Phantom. It&#039;s unfortunate but the chances are the 300a will be retired and replaced with the 350 Z. I would really prefer two have the 300 a repaired but I don&#039;t know if it&#039;s financially feasible. It has been rebuilt and when I say rebuilt upgraded capacitors and whatever one could do to that amp to improve the original design of it was performed about a year-and-a-half ago. I don&#039;t think it&#039;s a major problem. I do know that he is absolutely right and it is the preamp on the 300 a causing the drop-down on my sonars receive. My knowledge and dexterity are about equal. Both being basically non-existent so the chances of me being able to repair it on my own is not likely. I&#039;ll change that to a not going to happen. Do you want to repair it for me? After I take the photos and Nomad gives advice on how to if it&#039;s possible to repair if u would you be willing to take it on as a job? I have a tech who is very good but is also fairly backed up. I will be sending my tech some other equipment but I wouldn&#039;t mind spreading it around. It&#039;s always good to know more than one qualified person and considering you&#039;ve worked on three of them I don&#039;t think this should be something too difficult. But then again I don&#039;t know that myself. I will take the photos and then wait for Nomads reply. if you&#039;re interested after he lets me know what needs to be done I&#039;ll pack it up and send it to you. Until then I&#039;m basically using it the way it is. As I mentioned the preamp miraculously works in the on position after 20 something years of not working. As a matter of fact if it&#039;s not in the preamp position it affects the receive adversely. The last time I used it I used it with the preamp in the on and it brought everyone signal and the noise of course about 3s units but did not drop out like it did when it was in the off position. Very strange. I doubt it will last long in the problem needs to be addressed. If I get it fixed I will put the 350 Z back in the closet. I enjoy the 300 a very much and so does my FS 2340. Thanks for your interest and replies. 73</blockquote>

[QUOTE="Sonar, post: 594776, member: 47153"] Y Yes I noticed the quote was from nomad. I appreciate the photos. From what I've been reading over the past few years nomad is definitely someone who understands amplifiers. I get the feeling and he could correct me if I'm wrong but he either just was fortunate some might say unfortunate enough to work on enough palomars amp to know them inside and out. He's also helped me with my DNA Phantom. It's unfortunate but the chances are the 300a will be retired and replaced with the 350 Z. I would really prefer two have the 300 a repaired but I don't know if it's financially feasible. It has been rebuilt and when I say rebuilt upgraded capacitors and whatever one could do to that amp to improve the original design of it was performed about a year-and-a-half ago. I don't think it's a major problem. I do know that he is absolutely right and it is the preamp on the 300 a causing the drop-down on my sonars receive. My knowledge and dexterity are about equal. Both being basically non-existent so the chances of me being able to repair it on my own is not likely. I'll change that to a not going to happen. Do you want to repair it for me? After I take the photos and Nomad gives advice on how to if it's possible to repair if u would you be willing to take it on as a job? I have a tech who is very good but is also fairly backed up. I will be sending my tech some other equipment but I wouldn't mind spreading it around. It's always good to know more than one qualified person and considering you've worked on three of them I don't think this should be something too difficult. But then again I don't know that myself. I will take the photos and then wait for Nomads reply. if you're interested after he lets me know what needs to be done I'll pack it up and send it to you. Until then I'm basically using it the way it is. As I mentioned the preamp miraculously works in the on position after 20 something years of not working. As a matter of fact if it's not in the preamp position it affects the receive adversely. The last time I used it I used it with the preamp in the on and it brought everyone signal and the noise of course about 3s units but did not drop out like it did when it was in the off position. Very strange. I doubt it will last long in the problem needs to be addressed. If I get it fixed I will put the 350 Z back in the closet. I enjoy the 300 a very much and so does my FS 2340. Thanks for your interest and replies. 73 [/QUOTE]

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