UTC A-10 & A-24 Set for La2a Build

[analogstudio7]

Hello all !

I've been a pretty quiet member here for several years. But decided now, finally after I have retired to build, at long last, a La2a clone.

So I've been searching for parts and was wondering about the UTC A-10 and the UTC A-24 transformers that this company is selling on eBay, link below. Can someone tell me, are these indeed the transformers originally used in the original La2a ?

https://www.ebay.com/itm/387401872739

Thanks much!
Greg

 

[ubxf]

Yes those 2 are the ones, the older models has a HA-100X for input instead of A-10

 

[analogstudio7]

Yes those 2 are the ones, the older models has a HA-100X for input instead of A-10

Great, thanks!
Do you think the price the seller is asking is about normal or too high for the set of 2 ?

 

[j.colt]

It will be hard to find them cheaper and sold as a pair "right now". A-24 are routinely $300 and the A-10 is often $400. If you need them "now", then i think the price can be justified.

 

[analogstudio7]

It will be hard to find them cheaper and sold as a pair "right now". A-24 are routinely $300 and the A-10 is often $400. If you need them "now", then i think the price can be justified.

Thanks! Great advice!

 

[saulpickett]

WOW. I make transformers that would kill these sonically. but they're not tube transformers. wow.

 

[CJ]

That's a great price for the condition there in,

 

[AusTex64]

I agree with CJ. They will only go up in price. Most UTC transformers have over doubled in price in the last 5 or 6 years.

 

[emrr]

Bonkers. I remember buying eight A-10’s on ebay for $200 once. Days long gone.

 

[CJ]

Actually I like the Jensen 10k to 10k for input as the gain on the LA2a is way up there.

 

[LoudSpeakerPro]

Theoretically, transformers should just couple the audio magnetically, and introduce little or no coloration. The fact that sometimes they do introduce coloration generally is a result of less than optimum loading. The manner in which a device is employed is often as important as the device itself. Having said that, I would volunteer that you can buy vastly superior transformers from the Reichenbach tradition: i.e. Cine-Mag, Jensen, Bauer, even Edcor ... whose characteristics are orders of magnitude better than the old classic ones, and you can get them for a third of the price of the old UTC's and Triads. The use of high nickel cores and intimate winding techniques have improved performance by orders of magnitude. The LA-2A was a killer product because of the circuit designs, not because of its transformers.