[Premium-Rx] Collins HF2050 99MHz Xtal Filter

[Mark Donaldson]

My Collins HF2050 receiver has never passed the self test that is initiated when the "Test" button is pressed, the fault is indicated to be in the A6 RF Translator Assembly. I finally got around to looking into this more carefully and found the gain through the translator was about 20dB low which explains the translator fault. Trouble shooting the translator, the faulty component was found to be the 99MHz Xtal filter.
Does anyone on the list have a spare 99MHz Xtal filter they can sell to me or better yet a whole A6 translator assembly. I know quite a few of these were demiled back about 20 years ago so perhaps some spares are available still. Everything else about the receiver is functioning correctly and I would really like to put it in operation in my station once I get it working properly.
Thanks,
Mark WA1QHQ