Hi LF
Thank you all for the reports
But the audio PA is a hell. The good point is that looking at the results with this I can expect a very decent signal when using 50w
and a clear output sinewave (certainly not the actual sitiation right now)
Thank you for the PA recommendations, Stefan and Andy. Will follow that paved path ! ;-)
For the output transformer I have got a TDK 63x38x25mm blue ring core with N87 material. It was cheaper than Amidon 240-77 and ready available
from Farnell. The AL value is 5000 which looks good
IRFZ48N in TO220 are also in stock here. So will give them a try. Using the already available 13.8V power supply for the MF PA is a good option too
So, we have: U3S with duble frequency to 74F74 feeding both channels of 7667 and the pair of IRFZ48N. Do I keep the RC at the mosfet drain ?
All the rest as in the W1YD schematic ? Less primary and secondary turns in the output transformer noted
