Newbie's First Questions RCA TS 721 Restoration

[Chris K]

Originally Posted by Yamamaya42

this set is very close to my FADA 895, which is a RCA630TS clone.

the 6AT6 is the 1st audio level amp, it also serves as a bias clamper ( diode ) as this set is pre-AGC and has a " picture control" like my FADA,

like someone mentioned above to test the audio out section, you can simply clip on to the center wiper of the volume control, and feed in any sine wave in the audible range, to test it. this will also insure that you are on the isolated side of the grid via the .01 cap , no risk of loading loading thing down hooking up to that point.

OK...more idiot me on display...my Knight's lowest output frequency is about 160 kilocycles...out of audible range. Is there something else I can do???