[Joeztech]

Today I finally finished most of the work on the receiver. I installed the new Tung-Sol tubes one by one and adjusted bias as each was installed. There was some interaction between the group of bias controls but I used multi-turn resistors and was able to set tube current to within +/- .001mA and chose to start out at 30mA per tube. That has them running somewhat cool. After some listening time has been put on the unit I plan to increase the current up to 34 to 38mA per tube as indications are from engineers familiar with these tubes say the lowest distortion can be obtained in that range. I have a few residual issues to clear up to be completely finished. The unit has good sound that is full bodied and pleasing to listen to. It has very good selectivity for an older tube type unit. I can pick up a weak station next to a strong local station on an alternate channel frequency and this unit delivers good sound with no bleed-thru from the strong local station.

I bought a new walnut cabinet to put it in after I finish all the minor wrap-up issues. The photobucket site has all the latest pictures there along with the circuit schematic of all modifications.

Joe