#14
|
|||
|
|||
Quote:
Quote:
Yes and more and lots of solid state ( SS experience ) note my education futher down Noting you must let ALL the tube heats cool B4 next power up lest you fry a tube or are stupid and lucky but the rest of it is 4 + decades OLD NEWS but the AA5 radio back then had bad LYITCS as I suspected the reason > AC hum much Much LOUDER than this RaDiO ! This hum is forward of of the DUAL TRIODE FIRST AUDIO /AVC 12AT7 PARALLEL WIRED DIODE PLATES or maybe 1st audio cntrl.grid if you happen to know what all that is FWIW I was reading tube DATA and building projects (transformer powred ofc) out of RCA tube manual ref. designs we all used 4 decades before you were conceived & later getting proper EDUCATION I dont mean a vocational certificate diploma mill or High school but >>>>>> Electronics and Solid State Engineering study but not tube radios there LOL .......maybe NIXI tubes on some counters or just to make something red hot explode or melt for a prank or some lessons but not many TBH I was humoring you . 4 NOS tubes and circt. parts arriving soon may fix all this while your sig trce Detector diode idea is very good and detailed I am too to lazy ti gin up a proper circuit trace jimmy rig in an Altoids Tin ,with a diode DETECTOR probe capacitor uF like you say that can discern an AC hum ,an OP amp, a battery and buffer caps & whatever for a Ti PDIP- 8 op amp . I have it covered note my edu. and now that I spent some-refresh- tine with the schematics ...I can read these old crude AA4-AA6 circt. diag.and figure them out ...........SRSLY they basically haven't changed outside of the the tube sockets since 1936 BTW h and thank you for your rely full stop , Last edited by tubetwister; 08-15-2017 at 10:26 PM. Reason: tidy and update |
|
|