TDA 1521 +Epitaxial Darlington Transistors

Puffin · 19th July 2006, 10:59 AM

Has any one built any kits using these chips and if so is it worth it, i.e what do they sound like ?

ash_dac · 22nd July 2006, 05:00 PM

Quote:

Originally posted by Puffin
Has any one built any kits using these chips and if so is it worth it, i.e what do they sound like ?

No idea. There's a td1521 kit on maplin. I never understand Maplin's pricing policy. Prices go up and down, and in this case are not these two items the same but with different pricing ?

http://www.maplin.co.uk/Module.aspx?...ifier&doy=22m7

http://www.maplin.co.uk/Module.aspx?...ifier&doy=22m7

Why use darlingtons ?

Puffin · 23rd July 2006, 07:29 AM

You tell me ?

stickinsect · 9th April 2007, 04:12 PM

Bought one of these maplin kits ,doesnt sound bad at all ,put some better caps on it Sover 4700 mf I had lying around and connected it up to a Skynet8080SMPS.Well worth investing £14.99 in .

Puffin · 9th April 2007, 07:07 PM

stickinsect. My kit has been gathering dust since I tried to connect a transformer (not Maplin or Velleman) and I kept blowing the fuse. How did you connect an SMPS to it ?

stickinsect · 9th April 2007, 09:00 PM

Just connected the SMPS up +12,-12 and ground to the three inputs,(just use one of the ground connections on the board)the kit can be powered either with AC or DC in standard configuration.

AmpFromChina · 19th April 2007, 05:19 PM

it sound pretty nearly perfect ! in small volume ¡£

19th July 2006, 10:59 AM	#1
Puffin diyAudio Member Join Date: Feb 2006 Location: U.K	TDA 1521 +Epitaxial Darlington Transistors Has any one built any kits using these chips and if so is it worth it, i.e what do they sound like ?

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23rd July 2006, 07:29 AM	#3
Puffin diyAudio Member Join Date: Feb 2006 Location: U.K	You tell me ?

9th April 2007, 04:12 PM	#4
stickinsect diyAudio Member Join Date: Aug 2005	Bought one of these maplin kits ,doesnt sound bad at all ,put some better caps on it Sover 4700 mf I had lying around and connected it up to a Skynet8080SMPS.Well worth investing £14.99 in .

9th April 2007, 07:07 PM	#5
Puffin diyAudio Member Join Date: Feb 2006 Location: U.K	stickinsect. My kit has been gathering dust since I tried to connect a transformer (not Maplin or Velleman) and I kept blowing the fuse. How did you connect an SMPS to it ?

9th April 2007, 09:00 PM	#6
stickinsect diyAudio Member Join Date: Aug 2005	Just connected the SMPS up +12,-12 and ground to the three inputs,(just use one of the ground connections on the board)the kit can be powered either with AC or DC in standard configuration.

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