Vintage Synth Repair

Sent: Friday, April 27, 2007 11:46 AM
Subject: Re: [vintagesynthrepair] Solina string ensemble


> Hi Valerio,
>
> You're right, it seems you can use a 8 pins instead of the 14p.
> Take care to insert the 8p at the right place and maybe you can have a 
> look at
> the p.c. board to see if other pins are or not connected to somewhere...
>
>
> Selon Valerio Scrivano <vscrivan@...>:
>
>> Hi,
>> thanks for your reply.
>> If you read the Datasheet of  lm709 at
>> http://www.national.com/ds/LM/LM709.pdf
>> you will see that the lm 709 cn/14 and lm 709 cn/8 have same 
>> specifications
>> and data and that, if you mount the 8 pin version starting from the 3rd 
>> line
>> of the of the 14 pin socket (pin 1/8 --> pin 3/14, 2/8 -->4/14, ....pin
>> 8/8 --> pin 12/14) there is a correspondence pin to pin.
>> Can you confirm it ?
>> thanks
>>
>> ----- Original Message -----
>> From: "jm leman" <leman@...>
>> To: <vintagesynthrepair@yahoogroups.com>; "jm leman" <leman@...>
>> Cc: <vintagesynthrepair@yahoogroups.com>; "vscrivan" <vscrivan@...>
>> Sent: Thursday, April 26, 2007 4:46 PM
>> Subject: Re: [vintagesynthrepair] Solina string ensemble
>>
>>
>> > Have a look at this link :
>> >
>> > http://www.selectronic.fr/upload/produit/pagecatalogue/3-33.pdf
>> >
>> > in the left column, the fifth item in "standard op".
>> > these op amps are still findable in 14pins package.
>> >
>> >
>> >
>> > Selon jm leman <leman@...>:
>> >
>> >> As long as I know, 8pins and 14 pins op amp aren't pin to pin 
>> >> compliant!
>> >> Have a look at any electronic comp. sellor's catalog, you'll find 14 
>> >> pins
>> >> op
>> >> amp
>> >> that can replace the 709 (even being more performant for noise and 
>> >> speed.
>> >> Where are you living? I'm in France and I think I amy still have a 
>> >> little
>> >> stock
>> >> of old 14p op amp I'll not use anylonger...
>> >>
>> >> jean-marie
>> >>
>> >> Selon vscrivan <vscrivan@...>:
>> >>
>> >> > Dear friends, I own a Solina String Ensemble and I have to replace 2
>> >> > op amp LM709C. Since it's difficult to find the original part that 
>> >> > has
>> >> > 14 pin, do you know if it's possible substitute it with the 8 pin
>> >> > version on LM709C op amp ? Are they equivalent ?
>> >> >
>> >> > thanks.
>> >> >
>> >> >
>> >>
>> >>
>> >>
>> >
>> >
>> >
>>
>>
>
>
>

From: Valerio Scrivano

To: jm leman ; vintagesynthrepair@yahoogroups.com

Cc: jm leman ; vintagesynthrepair@yahoogroups.com

Sent: Friday, April 27, 2007 1:53 PM

Subject: Re: [vintagesynthrepair] Solina string ensemble

Ok,
other pins are not connected. I'll try it and let you know.

----- Original Message -----
From: "jm leman" <leman@...>
To: <vintagesynthrepair@yahoogroups.com>; "Valerio Scrivano"
<vscrivan@alice.it>
Cc: "jm leman" <leman@...>; <vintagesynthrepair@yahoogroups.com>
Sent: Friday, April 27, 2007 11:46 AM
Subject: Re: [vintagesynthrepair] Solina string ensemble

> Hi Valerio,
>
> You're right, it seems you can use a 8 pins instead of the 14p.
> Take care to insert the 8p at the right place and maybe you can have a
> look at
> the p.c. board to see if other pins are or not connected to somewhere...
>
>
> Selon Valerio Scrivano <vscrivan@alice.it>:
>
>> Hi,
>> thanks for your reply.
>> If you read the Datasheet of lm709 at
>> http://www.national.com/ds/LM/LM709.pdf
>> you will see that the lm 709 cn/14 and lm 709 cn/8 have same
>> specifications
>> and data and that, if you mount the 8 pin version starting from the 3rd
>> line
>> of the of the 14 pin socket (pin 1/8 --> pin 3/14, 2/8 -->4/14, ....pin
>> 8/8 --> pin 12/14) there is a correspondence pin to pin.
>> Can you confirm it ?
>> thanks
>>
>> ----- Original Message -----
>> From: "jm leman" <leman@...>
>> To: <vintagesynthrepair@yahoogroups.com>; "jm leman" <leman@free.fr>
>> Cc: <vintagesynthrepair@yahoogroups.com>; "vscrivan" <vscrivan@alice.it>
>> Sent: Thursday, April 26, 2007 4:46 PM
>> Subject: Re: [vintagesynthrepair] Solina string ensemble
>;>
>>
>> > Have a look at this link :
>>; >
>> > http://www.selectronic.fr/upload/produit/pagecatalogue/3-33.pdf
>> >
>> > in the left column, the fifth item in "standard op".
>> > these op amps are still findable in 14pins package.
>> >
>> >
>> >
>> > Selon jm leman <leman@...>:
>> >;
>> >> As long as I know, 8pins and 14 pins op amp aren't pin to pin
>> >> compliant!
>> >> Have a look at any electronic comp. sellor's catalog, you'll find 14
>>; >> pins
>> >> op
>> >> amp
>> >> that can replace the 709 (even being more performant for noise and
>> >> speed.
>> >> Where are you living? I'm in France and I think I amy still have a
>> >> little
>> >> stock
>> >> of old 14p op amp I'll not use anylonger...
>> >>
>> >> jean-marie
>> >>
>> >> Selon vscrivan <;vscrivan@alice.it>:
>> >>
>> >> > Dear friends, I own a Solina String Ensemble and I have to replace 2
>> >> > op amp LM709C. Since it's difficult to find the original part that
>;> >> > has
>> >> > 14 pin, do you know if it's possible substitute it with the 8 pin
>> >> > version on LM709C op amp ? Are they equivalent ?
>> >> >
>> >> > thanks.
>> >> >
>> >> >
>> >>
>> >>
>> >;>
>> >
>> >
>> >
>>
>>
>
>
>