YTO swap (5086-7903 -> 5086-7781)

[Dobby]

My HP 8594E spectrum analyzer died - its the YIG Oscillator.
I want to swap its (dead) YTO 5086-7903 out for a different (alive) YTO I have 5086-7781.
Does anyone know of any notable differences between these devices that would be problematic , eg range, output power ?

[DaJMasta]

I don't know the parts specifically, but are they otherwise unmarked?  A lot of yigs in analyzers are made by another company and have basic info and a more searchable part number in them.

In any case, I sort of doubt it, as there seem to be a lot of variations and different frequency plans even within similar instrument vintages or families - possible, sure, but unlikely.  That said, what's wrong with it?  Big power circuitry can fail and the amplifier on the output can fail and both can be fixed without replacing the yig.

[Dobby]

It worked, and i don't see any (major) issues.

[coppercone2]

just wait until you run into a high frequency overload on the coil and end up in a mirror universe

I heard the dave jones with a goatee charges a registration fee