RCA "Deluxe" Portable KCS-111D

[JSMCMS]

Hi Guys, Thanks for the feedback. I was thinking C106 might be part a resonant circuit and by removing it reduces width but I'm still wet behind the ears on these things. Cap is very close at 127 pf. Boost is a little high at 640V and HV is right on spec at 14KV. Voltages don't change with or without cap. I don't think the flyback has been changed.

This set was all original when I got it with the exception a few non-original tubes and someone adding what appears to be some bypass caps from a few tubes B- points to the RF shield on the back side of the main board. I wasn't too impressed with the workmanship so when I recapped it, I put it back to original. That was the major fix.

Thanks for the help!

[Kevin Kuehn]

I'm no expert but I believe C106 is basically in parallel with the width coil(T4) so I would suspect it was included to increase the width by partially cancelling the effect of T4. So long as you're getting the desired width I wouldn't worry about removing it. If you're curious what it's doing you could even play with it's value. You may see some change horz linearity. Most everything in the horizontal circuit interacts to some extent. Oh, I've been an active fixed wing RC'er for about 45 years.

[old_coot88]

Do you guys ever hang out on RCGroups?

[Kevin Kuehn]

Originally Posted by old_coot88

Do you guys ever hang out on RCGroups?

I have over the years, along with Flying Giants. Not so much the last few years. This whole FAA fiasco has everybody so up in arms over all the hoops we're expected to jump through. I grew up hanging out with my dad who taught me to fly, I think it was about 1972. I consider it my mental therapy now, and lots of good memories.