Version 1.01 dated 08/24/1998
email address changed 07/05/2002

R-390A/URR Radio Receiver Frequency Crystals

There are 7 Adobe Acrobat files in the archive along with this
readme.txt file. The filename of each is the type or style of
frequency crystal that that particular sheet covers. There are
also amendment sheets for some of the crystal types. 

Here's a quick rundown of which crystal goes where.

The IF deck contains one frequency crystal. It's a 455 khz one
inside the shield of Z501 and is a CR-45/U series.

The Crystal Osc. module contains 15 of the CR-36/U series of crystals
in the following layout:


Y412 17000.000 khz
                       Y402 10500.000 khz
Y403 11000.000 khz
                       Y404 11500.000 khz
Y411 16000.000 khz
                       Y415 15500.000 khz
Y410 15000.000 khz
                       Y414 14500.000 khz
Y409 14000.000 khz
                       Y413  9500.000 khz
Y408  9000.000 khz
                       Y401 10000.000 khz
Y407 13000.000 khz
                       Y406 12500.000 khz
Y405 12000.000 khz


Yep, only two different ones left and they're both in the plugin
crystal oven HR202.

Y201 is a CR-27A/U series of 17.0 mhz

Y202 is a 200.0000 khz crystal of the CR-47/U

Comments, corrections, complaints, or beer can emailed to me at:
nlee@acadiacom.net

thanks,
nolan


