Yes what mppd said + they also used versions of the ALQ-101 and others of that era like the ALQ-87 - in fact there is an early ECM pod pack somewhere for download - which includes different versions of each pod also.
The electronic war in Vietnam developed fairly quickly - ECM pods would be used - then the NVA SAM operators found a way to beat the jamming - so newer pods were used, then the NV would beat it again using other techniques such as "Home On Jamming" - and the next pods would beat that etc etc.
I noticed in SF2V TK has renamed the QRC-160-1 which was the original naming convention for the ALQ-71 (I think) and has put in the ALQ-101 by default - and has even put default ECM loadouts on most of the jets now - although on the F-4 this is always the inboard wing pilots. Where as a single pod in a forward sparrow bay was more common later in the war on the real jets from what i can see.
Still saved me a bit of work - had to change the whole lot in WOV