Source four socket assemblies

[KrazyKatt]

Are Source four and source four par, ceramic socket assemblies interchangable? have some in stock without a lable whether they are for the pars or source fours. Wonder if it matters.

 

[derekleffew]

Not interchangeable. Yes, matters.
https://proadv.com/etc-source-four-ul-socket-assembly/
http://www.productionadvantageonline.com/Products/M706.aspx