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From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: sci.electronics.design
Subject: Re: Curve Tracer
Date: Fri, 7 Feb 2025 23:27:04 +1100
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On 6/02/2025 11:01 pm, Chris Jones wrote:
> On 6/02/2025 1:10 pm, john larkin wrote:
> 
>> There were some real monolithic duals, complex interdigitated
>> patterns, not galvanically isolated, very expensive.
>>
>>
> 
> The CA3046 / LM3046 were cheap until they stopped selling them. 
> Fortunately I have several tubes of them left.

Renesas Still seems to make the much faster HFA3096

https://www.renesas.com/en/document/dst/hfa3046-hfa3096-hfa3127-hfa3128-datasheet

https://au.element14.com/renesas/hfa3096bz/ic-transistor-array-ultra-h-freq/dp/1562039

Mouser seems to have some of them too.

Phil Hobbs doesn't like them - the base resistance seems to be a bit 
high for his kind of work.

-- 
Bill Sloman, Sydney