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DQ-LP1 Raytheon 4558 op amps

 

Greeting,

I'm currently repairing a LP1. And while flipping thru my notes noticed, that back in the day the designer's decided that only the Raytheon 4558 was sonically worthy. Unfortunately it seems I don't have any Raytheon's but do have a bag of Motorola MC4558CP's. Which I'll have to research possibility employing.

So my questions are do any group members happen to have any Raytheon's stashed? And providing they are unobtainable, any ideas on what would be the closest current production replacement would be greatly appreciated??

Many thanks in advance,
DD
 

DD,

I rebulit a LP1 that had a bad OpAmp. I found some Raytheon OpAmps on Ebay, but I Insatlled a chinese OpAmp and it sounded the same as the Raytheon old new stock I got off Ebay.

Rich

On Friday, September 2, 2022 at 06:53:36 PM CDT, Samuel Crider <dieseldude1@...> wrote:


Greeting,

I'm currently repairing a LP1. And while flipping thru my notes noticed, that back in the day the designer's decided that only the Raytheon 4558 was sonically worthy. Unfortunately it seems I don't have any Raytheon's but do have a bag of Motorola MC4558CP's. Which I'll have to research possibility employing.

So my questions are do any group members happen to have any Raytheon's stashed? And providing they are unobtainable, any ideas on what would be the closest current production replacement would be greatly appreciated??

Many thanks in advance,
DD

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