Quote:
Originally Posted by JohnCT
I forgot about the sound! I dismounted the speaker/transformer from the cabinet and plugged it in. There's only a bit of sound in a *very* small area of the fine tuning. Strangely, the FM works pretty good considering the only antenna is the one inch of twin lead on the balun transformer that's feeding the DVD player into the tuner input. It picks up half a dozen stations with no real antenna, although it's a bit distorted but listenable.
I haven't touched the sound section, but I suspect it will come around when I shotgun the rest of the caps and filters.
Man, I've had a blast so far. I've not spent any more than a half hour on any one session to make the fun last, and quite honestly I'm sure I'll be disappointed when it's all done and stuffed together. I've got a late 50s RCA metal portable that I'll have to do next.
It's not a sickness, is it??
John
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You may need to walk the IF.... Basically tune the IF for max volume, shift fine tuning closer to best picture tune the IF for volume again till best sound and pix are in the same place.
The distortion could be ratio detector adjustment.
Definitely recap (and maybe check resistances) before playing with audio alignment.
Early post WWII TV stations used stronger sound carriers so TV and sets were not designed to have the same sound IF gain as 50s sets....It may end up like my Stromberg Carlson Dumont RA-103 clone where TV sound is adaquate with volume at max and FM radio is far beyond adaquate at a lower setting.
You got the affliction bad.... Just be glad it's TVs and not that other affliction going around.