I was just visiting Sony APM-4 page at thevintageknob.org and at the end of the sidebar it said:
"However...
TVK should soon be able to offer replacement surrounds with impregnated cloth for the APM-4, APM-77, APM-8 and APM-33 !
Lasting forever, lighter than the laborious chamois method and almost plug-n-play !"
Anyone out there know more about this?
http://www.thevintageknob.org/sony-APM-4.html
"However...
TVK should soon be able to offer replacement surrounds with impregnated cloth for the APM-4, APM-77, APM-8 and APM-33 !
Lasting forever, lighter than the laborious chamois method and almost plug-n-play !"
Anyone out there know more about this?
http://www.thevintageknob.org/sony-APM-4.html