are RIAA boards built into turntables any good?

gain · 11th June 2008, 03:49 PM

found an old turntable, no needle, no cartridge, but a RIAA board inside. there was a bypass switch so the user could connect the turntable to either a phono or tape/aux input.

are these RIAA boards any good? like worth putting into a hifi receiver?

thanks.

GlidingDutchman · 11th June 2008, 04:00 PM

What turntable?

I found the only phono-amps worth while found inside t/ts are B&O units.

D

gain · 11th June 2008, 04:04 PM

Quote:

Originally posted by GlidingDutchman
What turntable?

Garrand. Old school. All discrete components (not that thats a bad thing). Does work though.

GlidingDutchman · 11th June 2008, 04:08 PM

Never seen a Garrard phono before...

Maybe a pic? It could be good for general use...

What power rating? Drive it with a battery!

D

gain · 11th June 2008, 04:13 PM

well, we were cleaning out a garadge so i just snipped the RIAA out of the dead turntable and junked the rest, so regretfully cannot provide a photo.

however i did take it home, put a 9V battery to it along with a turntable and connected the output to amplified headphones. got decent sound on both sides.

gain · 11th June 2008, 04:26 PM

also the RIAA board i want to replace has just 4 small sig transistors in it. what to you all think would be the chances if i changed all of those 4 transistors on my original RIAA that board would work again?

GlidingDutchman · 11th June 2008, 04:45 PM

Quote:

Originally posted by gain
also the RIAA board i want to replace has just 4 small sig transistors in it. what to you all think would be the chances if i changed all of those 4 transistors on my original RIAA that board would work again?

If you change the semiconductors carefully and with the same spec units it might just work beautifully!

Try it.

Do you have a pic of the RIAA board?

D

AndrewT · 11th June 2008, 04:53 PM

the best place for a low level signal amplifier is right next to the source.
Well, you can't mount it in the headshell, so the next best is directly below the leadouts from the arm.

gain · 11th June 2008, 05:30 PM

original RIAA.

upper board, lower one is tuner.

gain · 11th June 2008, 05:31 PM

RIAA i snipped out of old turntable. works. sorry for the bad focus, my battery died before i could take a better one.

11th June 2008, 03:49 PM	#1
gain diyAudio Member Join Date: Apr 2008	are RIAA boards built into turntables any good? found an old turntable, no needle, no cartridge, but a RIAA board inside. there was a bypass switch so the user could connect the turntable to either a phono or tape/aux input. are these RIAA boards any good? like worth putting into a hifi receiver? thanks.

11th June 2008, 04:53 PM	#8
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	the best place for a low level signal amplifier is right next to the source. Well, you can't mount it in the headshell, so the next best is directly below the leadouts from the arm. __________________ regards Andrew T.

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11th June 2008, 04:00 PM	#2
GlidingDutchman diyAudio Member Join Date: Nov 2007	What turntable? I found the only phono-amps worth while found inside t/ts are B&O units. D

11th June 2008, 04:08 PM	#4
GlidingDutchman diyAudio Member Join Date: Nov 2007	Never seen a Garrard phono before... Maybe a pic? It could be good for general use... What power rating? Drive it with a battery! D

11th June 2008, 04:13 PM	#5
gain diyAudio Member Join Date: Apr 2008	well, we were cleaning out a garadge so i just snipped the RIAA out of the dead turntable and junked the rest, so regretfully cannot provide a photo. however i did take it home, put a 9V battery to it along with a turntable and connected the output to amplified headphones. got decent sound on both sides.

11th June 2008, 04:26 PM	#6
gain diyAudio Member Join Date: Apr 2008	also the RIAA board i want to replace has just 4 small sig transistors in it. what to you all think would be the chances if i changed all of those 4 transistors on my original RIAA that board would work again?

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