A 416 dilemma. What to do?

[airboss]

#1 The field trips to the various job sites weren't much fun.

#2 Frankly though, I don't see how either is relevant to what I've posted.

GM
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The font size must mean I got your attention. Good.

As to point #1. I'm not surprised, the arctic is a cruel and demanding environment. I spent a third of my career there. In the end I wrote procedures. Some people hate the detail and the demands of methodology. I was born for it. I'm sure you've written your share.

Procedure review, or SOC as we called them at Alyeska, is a tough place to make things up as you go along. Somebody gonna getcha. I would estimate that 90% of the struggle is learning to get along.

As to point #2, Unless I'm very badly mistaken it is your assertion about draining alnico before recharge that got most of the hot air going. It is relevant in so far as a slot car motor, paramount, is not a complex acoustic driver motor. If I understood your posts, you did disassemble the motors completely before recharge. The construction of the Altec motor is not designed that way. You're an engineer; you know better.

And finally, I have no interest in kicking the shit out of anyone, but my post for a slow down in the rhetoric said NOTHING about sweeping things under the rug. It said simply, let's slow down and think about this. Let's find out what the procedure is. Let's not make it up as we go along. That's how people get hurt.

You and I would not make best friends GM, but we can be civil neighbors.

Sincerely
Dan

[DaveCan]

You and I would not make best friends GM, but we can be civil neighbors.

Sincerely
Dan

Now don't be so sure about that!!! I'd bet you two old geezers would get along famously over a glass of Geritol or two.. Maybe swap ideas on the best way to keep the Depends secure, you know trade secrets and all And how about all those studly stories you both could talk about after you've popped that little blue pill, bet you could go on for hours and hours lol



PS, although it wasn't totally on topic, I thought my magnet zapping video was pretty cool, never saw how that was done before... You'd almost think he should of worn some type of safety glove or something?

[Altec Best]

Well anyway what was this thread about ?? Sheez, Hi Pano,Please bring back some nice photos of the fest or the OB you are working on.Would love to see them.

I think it has more to do with this particular pair of drivers than anything else.Were talking about 1 pair of drivers out of thousands and thousands of drivers.To me this seems very rare to come across this situation were the Alnico V fails to recharge.

Unless there are others that have had this same problem.

I think the cause has more to do with material than GPA I have dealt with them (Bill and Steve) on several occasions each and have never had a problem.Oh yeah I had one problem there was 2 lock washers missing from 1 of the Large Format Driver Studs & Gaskets (Hardware Package) I had ordered.And Bill offered to send an entire new package for 2 missing Lock washers,told him not necessary.

We are talking about a pair of LTV drivers aren't we.

But Pano your original question was what to do. 90 some posts later question still stands.I wish I had an answer to help you my friend.But at this point I would NOT put anymore money into these drivers,there has to be an issue with the Aluminum-Nickel-Cobalt material.It is quite intriguing because they had to be OK when they were new,so what happened to these magnets. This question probably will never be answered unless you know where and how these drivers were used their entire life.

[mah]

Just a little something on magnets and magnetising:

www.oersted.com/magnetizing.PDF

I would be tempted to try re-charging one speaker(the weaker one) as the paper indicates that the magnets should take re-charge.

Cheers, Marshall.

[theophile]

Convert them to field coils.