[R-390] another CV 157 question

[Glenn Scott]

Anyone happen to know how many CV157s were built? My serial numbers ranges are between high 70's and low 130's.


I have NOT got one of the 157's up working yet and with my present back log of 390 and 390A work, it will be at least another week before I have a free bench.  However, from my limited understanding of the 157 so far.. I am not too impressed. 
It has a vernier tuning control but no additional filters nor tunable BFO or notch filter.. Again, I am new to these beast and maybe I'll be more impressed soon; sure hope so!! 


On the first unit, I am going to rebuilt the PS before going forward. These are just too rare to take chances with.. Trust me, I will make as sure as humanly possible to have stable power before pulling the mains.trigger. We need NOT to get into a big discussion on this!


On the other hand, I have several Hammarlund HC10's and have been very pleased with them. The vernier tuning is very nice for CW or touching up any signal that may have drifted. The HC 10 also has it's own filtering which is post R390 and (A) filtering as well as a tunable BFO and notch filter that work well. The audio from the HC10 is decent and better than a stock R390A.. The only issue with the HC10's is they are also rare and now fetching $800 or more on epay..


73,
Glenn WA4AOS
DSM Labs (dot com)