[sdiy] returning to the chronic disappointment of the 1496...

Paul Perry pfperry at melbpc.org.au
Thu Jan 14 13:12:29 CET 2010


I wasn't aware the AD633 had gone, - I always found it much better
than anything I could do with an OTA (either LM13700 or CA3080).

Possibly something could be made using matched transistor pairs.

paul perry Melbourne Australia

----- Original Message ----- 

> Has anyone found any workarounds for the signal bleed-through problems
> with 1496s used as 4Q-Multipliers?
> I've read and re-read mailing list archives, message boards, and tried
> almost all the schematics I could find...I cannot seem to get the two
> signals to actually *balance* with real precision.
> 
> With the 633s and 1495s off the market, there has to be a cheap,
> effective solution to ring modulation, right? Have OTA approaches
> yielded worthwhile results?
> -AP




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