Bought old sony TA-N7B and now?

Harolda · 17th January 2011, 08:04 PM

I bought an old Sony TA-N7B,

and before powering it up and connecting it to the speakers, i would like to know who has experience with these amps, and what i should check before doing so.

Please share your experience with these amps.

kind regards,

Tekko · 17th January 2011, 08:31 PM

Have it been stored for a very long time ?

Start it up with a 60 watt light bulb in series with the mains to limit current.

Then if it powers up and the lamp is dim, then measure the dc offset on the speaker outputs.

If everything is fine, the amp is ready to use. Just plug it in and enjoy some music.

johnm · 17th January 2011, 09:12 PM

That is a SUPERB amplifier - I am extremely envious!

You might want to have a look over at Audio Karma there are quite a few vintage Sony owners there, and people who know about servicing them.

Vintage Solid State - AudioKarma.org Home Audio Stereo Discussion Forums

This amplifier is WELL worth servicing

- John

17th January 2011, 08:04 PM	#1
Harolda diyAudio Member Join Date: Jul 2005 Location: Hoensbroek	Bought old sony TA-N7B and now? I bought an old Sony TA-N7B, and before powering it up and connecting it to the speakers, i would like to know who has experience with these amps, and what i should check before doing so. Please share your experience with these amps. kind regards,

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17th January 2011, 08:31 PM	#2
Tekko diyAudio Member Join Date: Jan 2005	Have it been stored for a very long time ? Start it up with a 60 watt light bulb in series with the mains to limit current. Then if it powers up and the lamp is dim, then measure the dc offset on the speaker outputs. If everything is fine, the amp is ready to use. Just plug it in and enjoy some music.

17th January 2011, 09:12 PM	#3
johnm diyAudio Member Join Date: Sep 2003 Location: Hampshire	That is a SUPERB amplifier - I am extremely envious! You might want to have a look over at Audio Karma there are quite a few vintage Sony owners there, and people who know about servicing them. Vintage Solid State - AudioKarma.org Home Audio Stereo Discussion Forums This amplifier is WELL worth servicing - John

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