vintage sansui transistors

honsten · 1st August 2004, 12:16 AM

hi, i was given a rather tired looking sansui solidstate 2000amp/reciever and its really really old. now,when it was in one piece,it had a really violent sound (in a good way) but it is now devided into two pieces. the only bits which i have kept are the pre and power stages,rather,the most improtant parts of each stage. now,the power section has four huge transistors mounted onto a heatsink,the tranies have " sooken " or "sonken" written on them and then under this is written 2sd202 then 98. what does all this mean,they look really bulky and are capable of pushing some big current.

karma · 1st August 2004, 01:37 AM

if you can rebuild it i would. sanken power transisters have a nice sound. i have a 200watt amp

i would show you a pic but my server is being serviced do to the last storm

pflodin · 1st August 2004, 07:00 PM

2SD202 = NPN 80V 6A 50W you should be able to replace it with BD245C, 2N5633, 2SC2681 or 2SD718 according to my list..

/Peter

K-amps · 2nd August 2004, 03:44 PM

Quote:

Originally posted by pflodin
2SD202 = NPN 80V 6A 50W you should be able to replace it with BD245C, 2N5633, 2SC2681 or 2SD718 according to my list..

/Peter

Now that's a bulky trasistor!

tiefbassuebertr · 29th May 2010, 01:59 PM

check out also this threads:
Vintage Transistors
Overview of Brands and Models from first Solid State Audio Amplifier Components want.

1st August 2004, 12:16 AM	#1
honsten diyAudio Member Join Date: Feb 2004 Location: london	vintage sansui transistors hi, i was given a rather tired looking sansui solidstate 2000amp/reciever and its really really old. now,when it was in one piece,it had a really violent sound (in a good way) but it is now devided into two pieces. the only bits which i have kept are the pre and power stages,rather,the most improtant parts of each stage. now,the power section has four huge transistors mounted onto a heatsink,the tranies have " sooken " or "sonken" written on them and then under this is written 2sd202 then 98. what does all this mean,they look really bulky and are capable of pushing some big current.

1st August 2004, 01:37 AM	#2
karma diyAudio Member Join Date: Feb 2003 Location: hamilton,ontario	if you can rebuild it i would. sanken power transisters have a nice sound. i have a 200watt amp i would show you a pic but my server is being serviced do to the last storm __________________ http://www.karmaelectronics.info

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1st August 2004, 07:00 PM	#3
pflodin diyAudio Member Join Date: Jul 2004 Location: Alnö	2SD202 = NPN 80V 6A 50W you should be able to replace it with BD245C, 2N5633, 2SC2681 or 2SD718 according to my list.. /Peter

29th May 2010, 01:59 PM	#5
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	check out also this threads: Vintage Transistors Overview of Brands and Models from first Solid State Audio Amplifier Components want.