I now have my R4A back ,thanks to Lee"s Kc9cdt, fine work its doing a great job. Now the T4X, Rebuilt the supply AC-4 ,heath kit board, came out fine. Fired up the T4x today,set the bias current then followed the tune up procedure ,function switch to TUNE, advanced the gain to .15 amps , turned the plate control to dip the meter ..... nothing happens, meter stays same. There is a TINY dip when the plate is turned fully clockwise ,but VERY small dip. Have not had the case off the t4x yet,but of course the seller said it worked fine the last time he used it.
sure could use some guidance on this. only other facts, supply is 100% on all voltages, t4x going into a dummy load and testing is done with the t4x not connected to the r4a. thanks dale wt4t
_______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
