Buffered Mult, is this correct?

[rempesm]

If you add 100nF bypass caps between V+ and GND as well as V- and GND on the LM6172, that looks right to me.

Here’s one I posted in another thread:

Cadet/Castle components sources and substitutions

I haven’t used that chip before but the slew rates on the datasheets for both chips look significantly different (6V/µs vs. 3000V/µs on the LM6172). You could pretty easily compare them if you just breadboard a buffer circuit like this (remember 100nf bypass caps on V+/V-) and feed it signals with hard edges like a keyed shape or hi frequency square wave oscillators. It should be readily apparent on the output if the NJM2068D isn’t slewing quick enough. The 1k resistors on the op amps are sug…