Vintage Synth Repair

Does anyone have any idea where to find a ua79mg for a arp/siel quartet?  The manual says its a (-) power regulator.  Any chance of a substitute?  The only place I can find these- they are 25.00 apiece with a minimum order of 10.  
Thanks,
Ed



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Ed,
Try a NTE1927. Here's what NTE says about it:

The NTE1927 is a negative 4-terminal voltage regulator in a TO3 type 
package designed to deliver continuous load currents up to 1A with a 
maximum input voltage of -40V. 

I'm not sure of the price for them, though. ~JIM



--- In vintagesynthrepair@yahoogroups.com, Ed Hallborg 
<ehallborg@y...> wrote:
> 
> Does anyone have any idea where to find a ua79mg for a arp/siel 
quartet?  The manual says its a (-) power regulator.  Any chance of a 
substitute?  The only place I can find these- they are 25.00 apiece 
with a minimum order of 10.  
> Thanks,
> Ed