05-14-2020, 05:31 PM
The alignment of the 51-1733 has been competed. The tuning slugs are no longer bottomed and all IF transformers have been peaked.
I replaced R17,18,24 and 27 and did the procedure from the beginning with the antenna connected. When I did the alignment earlier this week I had the antenna connected only after completing the IF portion. I verified 455khz with a digital radio and a portable frequency counter. As a further check of 455khz I moved the radio dial and signal did not disappear. Thank you Terry and others who replied with help on this radio. I can now receive WPTF in Raleigh NC which is about 130 air miles away at 3 in the afternoon loud and clear so radio is working good. I did a little peaking of the RF portion of the
FM alignment and that is working stronger also.
I replaced R17,18,24 and 27 and did the procedure from the beginning with the antenna connected. When I did the alignment earlier this week I had the antenna connected only after completing the IF portion. I verified 455khz with a digital radio and a portable frequency counter. As a further check of 455khz I moved the radio dial and signal did not disappear. Thank you Terry and others who replied with help on this radio. I can now receive WPTF in Raleigh NC which is about 130 air miles away at 3 in the afternoon loud and clear so radio is working good. I did a little peaking of the RF portion of the
FM alignment and that is working stronger also.
