Scott Dorsey wrote:
Barry wrote:
Does anyone know where these might be available for a "reasonable" price?
The cheapest I've found them for is $45 for a used "pull". I have a nearly
new 2-01C in my ME26D/U but that won't fit in the probe in my HP410B. As I
understand it, some 410B probes came with 2-01C diodes and some came with an
EA53 probe and the two are not always interchangeable.

Have you considered a silicon diode and a filament resistor? I know it
isn't original, but it will work just fine.

Actually, no it won't.

The tube in the AC probe is very special. It extends the frequency response
from 20Hz to 750MHz, and up to 300VAC from 20Hz to 100MHz. You won't be able
to do that with any single solid state component.

-Chuck Harris