help please with yamaha a100 amplifier

bottomfeeder · 17th April 2009, 09:46 AM

I am trying to find a 10k gain potentiometer for a yamaha a100 amplifier .
Yamaha stopped stocking parts for that amp 10 years ago !
Its a 4 pin surface mounted pot that also has 2 solder on pins to hold it on the circuit board , plus a 1/4 knob shaft sticking out .
It is mounted on a circuit board with the shaft sticking staight out protruding through the amps face (under the meters) .
I appreciate any help , these are great amps !!

gain-wire · 19th April 2009, 05:56 PM

Hi there, could you post a picture of the pot in the amplifier?Unless you can remove it and take a picture of it alone, that would be better.

OW.

bottomfeeder · 19th April 2009, 11:56 PM

my camera wont take a good picture that small , but I have one I drew on powerpoint .
basically its 1/2"x9/16" 1/4 tall (from the board) it has 2 legs that solder it on the board and a 1/4" knob shaft that extends out .
it has 4 wire solder on points .

ke4mcl · 29th April 2009, 03:56 AM

i found a part like this recently in either mouser or digikey. i had to fix a friends roland drum machine that had a similar part. i searched for pc mount pot and found a few different choices.

bottomfeeder · 29th April 2009, 04:08 AM

Quote:

Originally posted by ke4mcl
i found a part like this recently in either mouser or digikey. i had to fix a friends roland drum machine that had a similar part. i searched for pc mount pot and found a few different choices.

I saw the digikey ones , they were 3 or 5 pin (on the electrical)
I dont know if the 5 pin will work mines 4), but cosmetically looks good .
I need to look at the mouser ones !
Thanks for looking !!!!!

slam · 30th April 2009, 01:39 AM

Did you try partstore.com? I got some hard to find discontinued sony parts from them.

bottomfeeder · 30th April 2009, 03:06 AM

just did they had nothing for the a100 ,
but did have some other yamaha stuff .
Thanks I bookmarked it .

bottomfeeder · 30th April 2009, 05:06 AM

Quote:

Originally posted by bottomfeeder

I saw the digikey ones , they were 3 or 5 pin (on the electrical)
I dont know if the 5 pin will work mines 4), but cosmetically looks good .
I need to look at the mouser ones !
Thanks for looking !!!!!

Mouser may have it !!

17th April 2009, 09:46 AM	#1
bottomfeeder diyAudio Member Join Date: Mar 2007	help please I am trying to find a 10k gain potentiometer for a yamaha a100 amplifier . Yamaha stopped stocking parts for that amp 10 years ago ! Its a 4 pin surface mounted pot that also has 2 solder on pins to hold it on the circuit board , plus a 1/4 knob shaft sticking out . It is mounted on a circuit board with the shaft sticking staight out protruding through the amps face (under the meters) . I appreciate any help , these are great amps !!

19th April 2009, 05:56 PM	#2
gain-wire diyAudio Member Join Date: Nov 2004 Location: NCR	Hi there, could you post a picture of the pot in the amplifier?Unless you can remove it and take a picture of it alone, that would be better. OW. __________________ Trans-directional-servo-logamp non-zerocrossing autogain compressing thingamajig

19th April 2009, 11:56 PM	#3
bottomfeeder diyAudio Member Join Date: Mar 2007	yamaha pot my camera wont take a good picture that small , but I have one I drew on powerpoint . basically its 1/2"x9/16" 1/4 tall (from the board) it has 2 legs that solder it on the board and a 1/4" knob shaft that extends out . it has 4 wire solder on points .

29th April 2009, 03:56 AM	#4
ke4mcl diyAudio Member Join Date: Apr 2009 Location: miami, fl	i found a part like this recently in either mouser or digikey. i had to fix a friends roland drum machine that had a similar part. i searched for pc mount pot and found a few different choices. __________________ certified packrat

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30th April 2009, 01:39 AM	#6
slam diyAudio Member Join Date: Jan 2005 Location: CA	Did you try partstore.com? I got some hard to find discontinued sony parts from them.

30th April 2009, 03:06 AM	#7
bottomfeeder diyAudio Member Join Date: Mar 2007	just did they had nothing for the a100 , but did have some other yamaha stuff . Thanks I bookmarked it .

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