AD 633/ AD 533 availability

[Magnus Danielson]

> Hi List,
> 
> recently I downloaded the schematics for the ringmodulator with the AD 633.
> Then I checked my parts catalogues from Farnell and Reichelt (German distributor),
> but didn't find the AD 633 nor the predecessor AD 533. So my question is, is
> one of these still available? And if so, where can I get one.

Well, Analog Devices seems to still have them around, check their page about 
it:
http://www.analog.com/adibin/locate?AD633

Sadly enougth I found no list of distributors for them around the world sitting
on a webpage...

Cheers,
Magnus