[R-390] 17mc Crystals

[Flowertime01 at wmconnect.com]

Fellows,

Some more things we need to write up and get into the Pearls.

There are two 17Mc Crystals in the R390's.

One for the second mixer in the can with the calibration crystal.
A second in the crystal oscillator deck.

Both are the same form factor in size.

They will interchange.

They have a difference in temperature ratings and thus a different part 
number.
That has all run through the mail before and we need to get it all over to 
Wei-Li's   
Pearls.

If you are not operating your receiver in a "harsh" environment the 
temperature range is not an issue as you have the heaters off and the "oven" containers 
are running over room temperature because every thing in a box with glowing 
tubes is over room temperature.

The crystals are different and have different part numbers. Some folks will 
want the correct parts in the correct spots and need to know these little 
details. Some folks just want the receiver dial to agree with the frequency being 
received.

Such luck to find one so close in frequency.

Roger AI4NI