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Old 12th March 2009, 03:16 PM   #1
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Question How much to pay for torroid in UK?

Can anyone indicate how much I would be expecting to pay for a torroid transformer?
I have been quoted 75 + 10 P&P from Amethyst-designs (Cambridge based company).
This is for a custom wound item, which I expect to pay more for, however 85 is starting to push the boundaries of my 'cheap' chip amp.
Specs for the torroid are 150VA per channel , twin secondaries @ 20V.
Can anyone recommend a cheaper supplier? I had no response from Airlink - after several phone calls and emails to them enquiring - I have been waiting for a sales person to get back to me for 6 months but given up now, they cant be interested in small orders.
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Old 12th March 2009, 03:44 PM   #2
Nuuk is offline Nuuk  United Kingdom
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Farnell, RS Component, Rapid Electronics, Antrim Transformers?
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Old 13th March 2009, 03:05 PM   #3
AndrewT is offline AndrewT  Scotland
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Default Re: How much to pay for torroid in UK?

Quote:
Originally posted by andyburlow
.........This is for a custom wound item, .........................Specs for the torroid are 150VA per channel , twin secondaries @ 20V.
Hi,
twin 20Vac secondary 150VA is a standard and readily available transformer.
Why do you need a custom version?

Rapid, Farnell and RS have been selling off their non ROHS stock at reduced prices for the past year. Don't know what might still be left.
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Old 13th March 2009, 03:45 PM   #4
Dr_EM is offline Dr_EM  United Kingdom
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I'd be willing to be this would do:

http://export.farnell.com/block/rk16...questid=737411

very few things need such close tolerances that 2v would make any odds and the VA rating can be increased to anything higher than 150VA really; it'll just be a waste to get something massively oversized. This should be fine for the chipamp

You may even be able to get one cheaper than this, this is a quality make, yet it's still much cheaper than your custom one! I think this will be a free postage item, it is enough value to place a card order online anyhow.
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Old 14th March 2009, 12:00 AM   #5
rhysh is offline rhysh  United Kingdom
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I would contact Chris @ Avel Lindberg. I have just ordered 2 x 440VA 22VAC with sheidling and custom terminations for only 80 shipped!
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Old 14th March 2009, 04:23 PM   #6
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If you can "get by" wirh 18v secondaries, Rapid Electronics do a 160va toroidal for under 18.

http://www.rapidonline.com/Electroni...mers/35506/kw/
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Old 22nd March 2009, 06:11 PM   #7
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Thanks for the replies, following the first reply I think I acted too hastily and tried the suggested companies.
Couldnt find anything on Farnells site, RS was down and then settled with Antrim who are custom making one for 76.
AndrewT - I was looking for a custom item as I couldnt find one 'off the shelf' and knowing no better (this is my first chipamp/electonics project) I have ordered said item.
Oh well you live and learn - at least I should get a quality torroid at that price.
I have tried to stop looking at what I could buy in the world of ready made integrated amps, as this project is already reaching over 120 when I include the cost of the boards and case.
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