Packard-Bell Model 2091-TV

[Geoff Bourquin]

This just found its way to my shop. A quick search online and in the SAMS index didn't yield any information. Does anyone have any info?
So far I have done nothing but a quick visual inspection. A melted capacitor (.05/600) in the HV cage, and a cracked 5U4. The dag looks a little crumbly on the 12LP4. Aside from that, the set looks to be in pretty good shape for its age (whatever that is). No channel 1 on it so must be at least 1948, right? I'm thinking not much later than that though.

[radio63]

Nice set! About 1949-50. Should very similar chassis to PB Model 2297 TV Deluxe. That's in Sams. I have a 2297 but haven't touched it in years. It's stored away. Good luck on getting it going soon.

Gilbert

[Geoff Bourquin]

Thanks, you are right; that looks like the same set except for the cabinet.

Got the chassis out today, and found a date on the CRT. Nov 1949. Looks like the mice did their thing on top of the chassis, so I have some rust to clean up, but the underside of the chassis looks pretty nice. Lots of caps to change. I need to fix up a safe place to store the CRT so I can get going on the chassis.
The way things are going around here it'll be Christmas before I'll be ready to display a picture on it.

[TheShanMan]

Neat set!

[Geoff Bourquin]

I couldn't leave the set alone. Bottom line, IT LIVES!
The CRT is strong, bright and sharp.
I started out by getting the horizontal oscillator going. After recapping the horizontal circuits, I pulled the horizontal output, and fired up. No horizontal drive. I traced that to an open oscillator coil. Lucky for me, the open was about 2 turns in from the outside end of the coil, so I was able to unwind a few turns and reconnect the wire to the lug. I was rewarded with about 70-80 volts p-p of clean horizontal drive. The loss of the vertical oscillator was the cumulative effect of several bad capacitors and a 1 meg resistor that was a whole bunch more than a meg. Also, the size and linearity pots are real touchy.
Now lets see if the tube lights up.....It does! I even have static, and I have not even changed the caps in the audio video and IF circuits yet. I supplied a ch 3 signal, and saw a pale picture with no sync. By this time I'm feeling very hopeful. I threw some more caps at it and the contrast became great, and I have enough sync to lock the horizontal, and loosely lock the vertical. Sound is good except when computer graphics show on the screen, then it buzzes.
I still need to restuff the electrolytic cans. For now I have a few modern caps tacked to the bottom of the old caps.
I need to find my box of rectifier tubes. I'm using a pair of 1N4007s in place of the broken 5U4 and a 100 watt bulb in series with the B+ to simulate the drop in the tube.
I checked the Sams for the model 2297 and discovered it is not the same as my set, but most of the circuits are close enough to guide me. Again, thanks for that model number.
I still need to deal with the height/lin pots. The right spot seems especially touchy, so the picture is a little out of shape.

That's all for now.

[Boobtubeman]

Love those packard bell sets... got one i did a major overhaul on sitting in the folks living room (2116 deluxe) Different model of course, but a PB none the less..

SR

[Geoff Bourquin]

How much high voltage should I expect on a set like this? I have about 9kv at zero brightness, and that seems to work just fine.
Oh yeah, that's with an actual 5U4GB, not diodes and a light bulb.

[Boobtubeman]

Not sure of the exact KV, check the manual... Looks like youre in the zone by the looks of the pic

SR