I have understood that mica is not suitable for
plate blocking due to dielectric migration from the DC applied.
73,?? Roy??? K6XK
On 1/19/2020 7:36 AM, Tracey Gardner
via Groups.Io wrote:
toggle quoted message
Show quoted text
?
I have an 1100pf large block shaped Dubilier?mica
capacitor?dating from 1944.
It measures approx. 3.75w x 2.25d x 3.25h inches
It states on it that it was tested as follows
?
(a) 6 amps at 300kHz for 1 hour
(b) 28kV dc
?
It also states that the max working conditions should be
approx. 80% of those ratings.
?
Considering its age has anybody got any thoughts on if it
would be safe to use?
?
It still measures?1106pf
?
Thanks
?
Tracey G5VU
