[R-390] Orange Drop vs ceramic disc

[Barry]

> A local parts store has ceramic disc capacitors and I could get just
> aboutany voltage and capacitance I wanted.  I don't know the age so I guess
> Iwould call them NOS, if they don't age or fail with age it would be
> easierfor me to get them here.  They also have NOS resistors but I've heard
> theydo change value with age.

That depends on the typd of resistor.  The resistance of carbon composition resistors do have a tendency to increase over time.  Other types may not.  I have a radio that's nearly 50 years old and many of the resistors in it are riduculously close to their stated values.  I don't know but I think they're carbon film types.

Regards,
Barry - N4BUQ