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In Reply to: RE: Lundahl am core Now that the hype has subsided worth it? posted by amnesiac on June 10, 2016 at 08:49:33
What tubes are you loading? Why do you feel the need to gap yourself? Why lundahl?
There are some great custom winders at present... Lundahl am seems mediocre yet expensive to me. Why?
91derlust.
"Confusion of goals and perfection of means seems to characterise our age." Albert Einstein
Follow Ups:
there actually cheap compared to most that i have been shopping around online. That is a winder that prints their prices for any given model on their website. For me lundahl are a known quantity at least the iron cores. I have used a few over the years. I haven't tried the am cores. It is hard to justify the almost double the cost for a trans that takes the same time to wind. I believe they make their own cores which makes me a little suspicious of that because compared to say hitachi finemet. How can they be up to the standard of a company with a r&d budget of millions.
The lundalhs are so flexible if I gap them myself I can use them for so many different tubes se and pp. I like to build a lot of amps. I use my trans over and over. And I use many different speakers. So a winder that says they can only make a trans for a single speaker impedance limits the appeal for me. I want to build a big push pull amp but I would most likely pull it down after a while and rework it for se.
There must be people on this forum that has had silicon and then upgraded hopefully anyway.
I am a little reluctant to order custom trans. 3 times It has gone wrong for me. One pair took nearly 12 months another time I never got them at all. And one time they showed up with the taps marked incorrectly. I should add that only one of those guys where american and that was handmade transformer guy and doesn't really count I guess.
where you are coming from now. I am different in that I prefer dedicated tool ideally suited to the job I require, hence custom winds... but I clearly do not build as often as you!
I was a little harsh calling the Lundahls "mediocre" and "expensive"; they are a consistent, solid product that is not cheap, but provides considerable flexibility. Still, I think there are better quality items available for similar money, but I appreciate your desire not to take a risk of getting burned again... and there is their flexibility that is important to you.
I can't help any more than that, sorry. All the best in your journey.
Cheers,
91.
"Confusion of goals and perfection of means seems to characterise our age." Albert Einstein
I think why i should not try pull the ludahl apart. I have a single 1620 i think the windings would fall in on themselves. They have no bobin. opps sorry stupid idea!
Edits: 06/11/16
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