Total posts : 45366
This series of LPB transmitters use crystals that are multiples of the base frequency and are available at reasonable prices from ICM, who I think has been the supplier from the glory days of LPB. They know exactly what’s needed.
I hope there is a manual… that’s the hard thing to get for some models.
I think the AM-30 manual is online somewhere.
There were circuit modifications over the years to all the versions, so manuals may not be exact matches.