i'm on a roll... the kgsshv

[iwik]

Thanks Birgir

[llamallama]

Thanks johnwmclean, you're right, this is a single primary transformer. Will have to reorder one /w dual primaries.

[johnwmclean]

Thanks johnwmclean, you're right, this is a single primary transformer. Will have to reorder one /w dual primaries.

 

 

No worries.

Should check your line voltage, mine here fluctuates around 240V - 250V here in Sydney.

The 230v spec could be a problem?

[spritzer]

The transformers are over spec so line fluctuation should never be a problem. 

[luvdunhill]

The transformers are over spec so line fluctuation should never be a problem.

It still can be tricky, making sure the power supply heat sinks can cope, for example, even if there is extra current capacity in the PSU. I like to plan for 10% line fluctuation.

Edited March 7, 2015 by luvdunhill

[mwl168]

So I received two packages today and one of them is the 2SC4686A I bought on eBay from UTSOURCE.

 

In the photo below are two 2SC4686A, one I bought from BDENT (on the right) and one from UTSOURCE (on the left). Can anyone spot any difference or discrepancies other than the batch code?

 

All I have is a Fluke 112 multimeter. Is there some way I can test the two to see if the eBay ones are legit?

 

Thanks!  

[mypasswordis]

Buying a dy294 will save you a lot of trouble, especially if you have other parts in need of measuring

[DefQon]

Looks legit. I have some old stock I got from a diy'er on diyaudio, bdent and a UK seller on ebay and there are some in the odd 50 bag of them that look like either of those 4686's.

[spritzer]

Yup, get a DY294 but those do look real or very good fakes. 

[UFN]

It's probably the same that a few of us got from another ebay-seller a while ago; genuine but very old (pre-RoHS). They look the same at least.

 

 

//UFN

Edited March 10, 2015 by UFN

[mwl168]

Thanks all for your response. I do plan on getting a DY294 in the near future.

[johnwmclean]

Thanks all for your response. I do plan on getting a DY294 in the near future.

 

Seeing yours look the real deal I just bought a bunch from the same vendor.

At $0.50 a piece and cheap shipping.... not bad.

[mwl168]

Seeing yours look the real deal I just bought a bunch from the same vendor.

At $0.50 a piece and cheap shipping.... not bad.

 

fingers crossed 

[wink]

 

Seeing yours look the real deal I just bought a bunch from the same vendor.

At $0.50 a piece and cheap shipping.... not bad.

 

What are you building me?

[GeorgeP]

Utsource sells both real and fake parts, so it can be a bit hit and miss.

[eggil]

I bought a few too. we'll see how they turn out.

Edited March 12, 2015 by eggil

[iwik]

The lsk389 is supposed to be better than the PMBFJ620. is this difference really significant.

As I will have to buy the 389 from Trendsetter and with Postage to NZ will cost me $35 per

Transistor. Is it really worth paying that?.

Thanks

Les

[nopants]

you can also just use matched k170s

[iwik]

Thanks Nopants

Les

[johnwmclean]

http://www.diyhifisupply.com/opcart/index.php?route=product/product&path=179_198&product_id=385

 

$30 for a pair, $9 shipping

Edited March 14, 2015 by johnwmclean

[nopants]

That's ridiculous, can you order directly from Linear?

[johnwmclean]

Well if ordered from Trendsetter delivered here is Australia would be $127.

 

... now that’s ridiculous.

[nopants]

Oh I was referring to ordering from Linear, you can shoot the company an email and they are perfectly willing to sell pieces in any quantity. I think it's either 6 or 8 usd a pop

[iwik]

Direct ordering is an option I noted from their site. Being US based I bet shipping will be a killer but worth a try.

[Pars]

You can order the LSK170s from diyaudio at ~$18 for a set of 8. Not sure how these typically match up; I know Spritzer said the LSJ74s were all over the place for Idss.