transformers

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ed
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#1 transformers

Post by ed »

heres a risky little thread and no mistake.......

I'm seeking opinions, no bullshit, no waffle, from those that have experience of running 2 or more of the following in their own amps....please, if possble:

Tribute
Hammond
AE
Sowter

application is SE, moderate current...don't mind comparing standard with amorphous but deffo no silver.
Kind of like a poll but I don't know how to set one up on this forum.

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simon
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#2

Post by simon »

You've got some bottle Ed, I'll give you that :wink:.

I have the previous Hammond 1627SE 2.5k and AE c cores, also 2.5k. AE better and cheaper. IMHO and IME.

Do you have directions to the Guildhall so I can join you?
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pre65
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#3

Post by pre65 »

Hi Ed-NOT an answer to your question !

Nor bull shite or waffle !! :wink:

When i select an output transformer i realise that sound quality is important but also "value for money" and "flexibility".

By flexibility i mean perhaps multi taps for 2.5K + 3.0K + 5K and 4/8 ohms.

The best value and most flexible i have purchased are the James 6123HS from Sandy on e-bay (HK or Taiwan if i remember) which i use on my 45 amp.

From previous topics on WD forum it seems these OPT are widely respected,i believe Andrew I has had some in the past.

Can i bring a wet sponge ? :)
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pre65
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#4

Post by pre65 »

Hi again-perhaps we could have a SE output transformer shoot out at the next Yorkshire event ?

For my ECL82 Dodd special i purchased a pair of 5K (4+8 ohm) Tomiko toroidal output transformers,and they are fitted in with solder tags so would be relatively easy to remove for you to try.
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Nick
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#5

Post by Nick »

Hi again-perhaps we could have a SE output transformer shoot out at the next Yorkshire event ?
Yes, but what would it show, other than which transformer worked best with that amp :-(

I think Ed is asking the question in a good way, I can't answer as I only have one of the list.
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pre65
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#6

Post by pre65 »

Nick wrote: Yes, but what would it show, other than which transformer worked best with that amp :-(

Yes,i agree ! But is that not what Ed is after ?

Seems from my experiences with sourcing OPT for the PT15 that primary inductance is very important for some valves (PT15 & 211 to name but two).
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#7

Post by Cressy Snr »

Hi Ed

In my experience Hammond 1627s sound great with 2A3s and EL34s and were great value until they upped the price. The Sowter SE transformers I had and which Steve now has are absolutely superb, but they are far more expensive. (£300 per pair) You pays yer money and takes yer choice.

Steve
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andrew Ivimey
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#8

Post by andrew Ivimey »

Yes well, and there is O-Netics and I've yet to think up a use for them!

There might well be a grudging and tenuous agreement that all things considered, AE C cores / amorphs are just ticket - might be :wink:

Who could possibly have encyclopaedic knowledge about such a tiny area of life; SE output transformers in practice, discuss!

And what would it take to be persuaded by any one advocate?
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pre65
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#9

Post by pre65 »

Perhaps if Ed was more specific about the valve and circuit he was thinking of there might be more "accurate" info available.
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ed
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#10 Re: transformers

Post by ed »

ed wrote:
I'm seeking opinions, no bullshit, no waffle, from those that have experience of running 2 or more of the following in their own amps....please, if possble:

Tribute
Hammond
AE
Sowter

application is SE, moderate current...don't mind comparing standard with amorphous but deffo no silver.

so far I have one AE over Hammond and one Sowter over Hammond...
keep it coming chaps......when I have the data I can turn it into information....logic is what we do here, or at least used to.
There's nowhere you can be that isn't where you're meant to be
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