Rare find! A Magnavox Brittany tv!

[Yamamaya42]

Status so far.

CRT = 16FP4 -DEAD, working to get a replacement 16LP4, slightly different, but close enough.
Chassis out, evidence of rodent activity, but minor, did not get under main chassis, did chew in audio sub, no wires chewed.

Cover of HV cage gone, dirty inside, will need lots of cleaning, FBT status unknown, wires very brittle, one snapped in half when removing HOT caps, at least one of the 500 pf caps has cracks in the surface, the one on the top of the 1B3GTs, may be from heat, good/ bad unknown, if bad, may replace with 2 1000pf (10kv) in series.

Main filter looks awful, but is not open, will try to coat it as suggested, if it fails, have a STANCOR C-2326 on the way.

All electrolytic capacitors were ordered, and have just arrived, already have a mess of film capacitors and resistors.

Will start on it Friday night, beginning with the audio sub section, since it comes out and is easy to access, then main power.

First goal point, to get the horizontal oscillator up and running.

will d/l your document when i get home.

[old_coot88]

Originally Posted by Yamamaya42

Any opinions on that crappy looking filter coil?

Have you ohmed it? Prolly be a few hundred ohms if good. If there's no leakage to the frame, it may be OK.

[Yamamaya42]

Originally Posted by old_coot88

Have you ohmed it? Prolly be a few hundred ohms if good. If there's no leakage to the frame, it may be OK.

53ohms, ish, I have not done a leakage test on it yet, I will when I remove it to try to coat the windings.

[old_coot88]

Maybe the collective wisdom on the group can say if the resistance sounds right. I don't recollect ever actually measuring a filter choke. They seemed to be among the least failure-prone components.

[bandersen]

53 ohms sounds perfectly reasonable and it looks OK. Moisture, critters or time probably caused the paper covering to fall off.

[Yamamaya42]

Originally Posted by Kevin Kuehn

I tried this several times but the original is so small and the print quality has reduced the definition of some of the component numbers. Possibly someone else has a better quality print in their Riders 6, but I suspect this happened when they reduced the original to fit the page space.

https://www.flickr.com/photos/152661...7720324061767/

much better, i can see the numbers now! Thanks!

[Yamamaya42]

Well, If I do need peaking coils, this prob is the key!
https://i.ebayimg.com/images/g/ltoAA...O/s-l1600.webp

[Yamamaya42]

more photos of the FBT area

http://suzaku.live-evil.org/0226251827a.jpg
http://suzaku.live-evil.org/0226251827.jpg
http://suzaku.live-evil.org/0226251827b.jpg

http://suzaku.live-evil.org/flyback.jpg

took some measurements, perhaps its good, but the resistors are bad!
R225 is not there at all!
I'm not sure what the FBT should test at, so I hope it's OK!

but the wires are no good. falling apart!

http://suzaku.live-evil.org/0226251831.jpg

the chewed audio section.

[bandersen]

Is that 6.5 Megaohms? If so, that's bad. Should be around 200-300 ohms

[Yamamaya42]

Originally Posted by bandersen

Is that 6.5 Megaohms? If so, that's bad. Should be around 200-300 ohms

i need a FBT then 320035-1

[Yamamaya42]

Thordarson FLY4

[Yamamaya42]

OK this is getting weirder

http://suzaku.live-evil.org/weird.jpg

I had a loose connection when I checked it

It tests at 24 ohms at 12uh. Good/ bad? not sure now

But HVO-5 is the right replacement

[Yamamaya42]

So, at this point I'm not sure if the original FBT is good / bad yet, but it's definitely ugly! ( insert 60s movie musical cue here)

The only reference spec I could find was for the replacement merit hvo-5, which may or may not be like the original part, bit confusing.

The fuse for it was NOT blown, that is at least a good sign.

[timmy]

Interesting but looks like you have your hands full. Got to post a picture of the screen when you get it up and running.

[Yamamaya42]

Replacement CRT ordered!