The Af-67 saga continues...........
Satan might be in this Tx!!!
I was gettting really ugly audio and ugly waveforms on the scope, really severe distortion. I removed one of the mod toobs and lo and behold the audio was clean and there was 100% pos peaks. Looks like I bought a bum mod transformer. The guy that sold it to me operates a repair shop, and I don't think he'll take my word that he probably sold me a bad transformer. I'm gonna run it like it is with just one mod toob. If I get some extra money I might have Dahl rewind the dam thing.
Any other thoughts out there??
Thanks..............Fred.............MOP radio
FLASHOh yes my friends, who have these little monsters. I did an ER mod that eliminates the driver transformer and I now have a freq response of 80hz to 5khz on the 'scope. R390A receiver....'scope hooked up to the I.F. OUT. This setup has been used with many different transmitters, broadcast included, and seems pretty reliable.
The driver transfrmr in my AF-67 was replaced and who knows what quality was in that unit. It severly limited freq response of the modulator.
More de-bugging before this Tx hits the air.
G'day