Prune wrote:
Prune wrote in
4.76:
I've tried cermet potentiometers for volume control, and in a blind
test (non-double, used dual switch with my friend) I can't tell the
difference between it and a stepped attenuator; however, in 7/10
trials me and 8/10 trials him heard difference between plastic pot and
the cermet, both preferring the cermet.
John Larkin wrote in
:
It is interesting; I'll try it soon. I have a nice selection of most
everything - carbon film, metal films, cermets - but not much in the
way of carbon comps.
Er, by plastic pot I meant the conductive plastic ones such as Alps.
I can't say I was aware that Alps made any conductive plastic types.
A better test would be Vishay-Sfernice's P11(cermet) vs PA11( conductive
plastic)
http://www.vishay.com/doc?51031
Note that the conductive plastic part is recommended for audio.
Graham