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Denon AVC1A Transistor cross reference
Denon AVC1A Transistor cross reference
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Old 18th February 2009, 07:30 PM   #1
ben12345 is offline ben12345  United Kingdom
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Default Denon AVC1A Transistor cross reference

I'm trying to repair an old Denon AVR-A1 home theater amplifier.

So far, I've actually got the beast to power up, although 'protection' is shown.

The amplifier output transistors were s/c, which also blew the drivers too. Problem is that they are all obsolete as far as I can find... Neither RS or Farnell stock the main outputs or the others I need, and I even tried mouser and digikey.

Can any of these be replaced with more modern parts?

The main outputs are 2SD1975 / 2SB1317 Pair

Driver section
2CD2004 / 2SB1328 Pair
2SC3423
2SA1360

Misc
2SC1841
2SA970
2SB1328

Cheers,
Ben
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Old 18th February 2009, 11:18 PM   #2
ben12345 is offline ben12345  United Kingdom
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Hmm, Looking through some datasheets, it looks like C5200/A1943 might do the job for the output stage.

Any thoughts?
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Old 19th February 2009, 12:12 AM   #3
burbeck is offline burbeck  United Kingdom
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hi ben
try http://www.dalbani.co.uk
or http://www.cricklewoodelectronics.com
great companies
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bob
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Old 19th February 2009, 09:15 AM   #4
ben12345 is offline ben12345  United Kingdom
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Thanks Bob,

Nikko had the lot! They'll definately be going in my bookmarks.

Cheers,
Ben
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Old 22nd February 2009, 03:04 AM   #5
burbeck is offline burbeck  United Kingdom
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glad you got sorted, i been using them for years specialise in japanese semis
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