Hello Steve,
today I got a PM from Steve [AZUR Electronics];
he shows a "HP 11660A Tracking Generator Shunt (home made version)" on his website
and by courtesy he unveiled the secret around the component values of the 11660A.
He figures out that the 11660A contains a single shunt resistor of 54.5 Ohms.
Albeit this will constitute a gross mismatch for the 600 ohms output resistance of the TG,
it will transform the effective source resistance into exactly 50 ohms.
痴辞颈濒à!
Regards
Martin
