Hello from North Carolina with a Technics SA-300

BILL IN NC · 6th October 2011, 09:40 PM

Hello everyone. I'm Bill in Charlotte, NC.

I have a question but not sure which forum topic I should post it in....

My Technics SA-300 receiver is great to play my old LP's on. I have read that replacing capacitors can improve sound quality. I am interested in replacing some of the caps and would like some recommendations on which ones to replace. The list of caps from my original instruction manual is huge. I'm counting 42 electrolytic caps plus an additional 87 random ceramic, polyester, and polystyrene caps. Any help will greatly be appreciated. Thanks!

c2cthomas · 6th October 2011, 10:19 PM

Howdy Bill - and Welcome to diyAudio!!!

I downloaded the service manual for the 300 from here Download the Technics SA-300 service manual for free - Hifi Manuals

There are not all that many caps in the audio amplifier signal path or the power supply - which are the areas that will offer the best bang for the buck in terms of replacement.

How are your electronic and soldering skills???

BILL IN NC · 7th October 2011, 04:28 PM

Thanks for the warm welcome!

My soldering skills are pretty lousy. I happen to work with some electrical engineers (mechanical engineer here) that offered to solder the caps & use contact cleaner on the pots & contacts. How can I determine which caps pertain to the amplifier signal path & power supply? I would like to order the caps before handing over my receiver to them. Thanks a bunch for the assistance!

6th October 2011, 09:40 PM	#1
BILL IN NC diyAudio Member Join Date: Oct 2011 Location: Charlotte, NC	Hello from North Carolina with a Technics SA-300 Hello everyone. I'm Bill in Charlotte, NC. I have a question but not sure which forum topic I should post it in.... My Technics SA-300 receiver is great to play my old LP's on. I have read that replacing capacitors can improve sound quality. I am interested in replacing some of the caps and would like some recommendations on which ones to replace. The list of caps from my original instruction manual is huge. I'm counting 42 electrolytic caps plus an additional 87 random ceramic, polyester, and polystyrene caps. Any help will greatly be appreciated. Thanks!

6th October 2011, 10:19 PM	#2
c2cthomas 49 - for the 16th time diyAudio Member Join Date: Oct 2006 Location: Near "Music City" (Nashville Tennessee)	Howdy Bill - and Welcome to diyAudio!!! I downloaded the service manual for the 300 from here Download the Technics SA-300 service manual for free - Hifi Manuals There are not all that many caps in the audio amplifier signal path or the power supply - which are the areas that will offer the best bang for the buck in terms of replacement. How are your electronic and soldering skills??? __________________ "You can't always get what you want" K. Richards/M. Jagger *** "Next time I will know some things better" Zen Mod

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7th October 2011, 04:28 PM	#3
BILL IN NC diyAudio Member Join Date: Oct 2011 Location: Charlotte, NC	Thanks for the warm welcome! My soldering skills are pretty lousy. I happen to work with some electrical engineers (mechanical engineer here) that offered to solder the caps & use contact cleaner on the pots & contacts. How can I determine which caps pertain to the amplifier signal path & power supply? I would like to order the caps before handing over my receiver to them. Thanks a bunch for the assistance!

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