SWR LA-15 Power transformer

[52 Bill]

Sorry, but I don't see any 4700 ohm resistors anywhere in the power supplies, or 4700 uF caps either.

You have unfortunately gone about this repair in the wrong way, and you should stop and reorganize your plan of attack before moving forward.

The amp originally had a bad part in it that was causing the power transformer to heat up. By some chance of luck, you have successfully replaced that bad part and now you need to put it back together and make the amp work again.

Some of the posters here just need a direction to follow, others need to be walked down a path. You seem to be one who needs more of a path to follow.

Please explain to us what the "4700" whatever parts you were talking about in the earlier post.

[J M Fahey]

Hi Bill52.
*I* suggested Strebor to solder a couple 4700 ohm resistors (obviously not present in the original schematic) across "the big caps" to safely discharge them in a reasonable time.
He called them "capacitors". Oh well. I also started as a beginner .
I also agree that *maybe* he repaired it by sheer chance, such as re-seating properly some connector, tightening some nut or any other "mechanical" problem.

[strebor71]

Hi Bill52.
I also agree that *maybe* he repaired it by sheer chance, such as re-seating properly some connector, tightening some nut or any other "mechanical" problem.

Your kidding right. "Tightening some nut"? Your just butt hurt because someone with obviously more knowledge than you said your suggestion about soldering 4700 ohm resistors across the caps was a bad idea. Just to let you know, I never did make that modification because after recieving info from others here and my testing determined there was no problems with that part of the circuit. I didnt just swap out random parts in hopes the one i picked fixed the problem. I followed peoples advice and learned how to test for shorted components, and replaced the ones i found defective.

The amp originally had a bad part in it that was causing the power transformer to heat up. By some chance of luck, you have successfully replaced that bad part and now you need to put it back together and make the amp work again.

What do you think i was doing this whole time? It is clear that there was a badpart in the circuit causing the overheating, which i correctly and successfully found and replaced thanks to the help of some of the folks here. Which is the only reason why the AMP is back together and restored to its fully functioning state and has been for several weeks now.

thanks to all that had advice to help me get this amp working again. CASE CLOSED!!

now any one gat any advice on how to correctly adjust the bias??

[J M Fahey]

"Warm up a frozen snake, out of pity, and it WILL bite you"
Oh well.
You sure know how to motivate people to help you.

[Enzo]

Welcome to the forum, strebor.

But really...

Your just butt hurt because someone with obviously more knowledge than you said your suggestion about soldering 4700 ohm resistors across the caps was a bad idea.

You clearly have no idea who you were talking to. Mr.Fahey has been in this business MANY years, he has been building and selling a line of amplifiers under his own name for decades. Whatever you might know, I'd be willing to bet it is not "obviously more knowledge" than his. He has been advising people on the repair of many diverse circuits for many years as well.

With only 8 posts on this board, it is difficult to assume anyone has direct knowledge of what you do and do not know. Therefore it is premature to think you are being insulted.

[J M Fahey]

Thanks a lot Enzo, you'll make me blush.
.