Viewers choice

[Red Raster]

Thanks everyone for participating, This is a lot of fun. For now it looks like it may be too close to call.
I just ordered the capacitors for all three will work on voters choice 1,2and 3 when the parts order arrives.
Mike.

[moltogordo]

1 - 3 - 2

[Electronic M]

3-1-2

[Adam]

I'd start with the porthole.

[jmdocs]

What's funny about this thread is, hearing it's too hot to go outside. When these sets were new, it would have been too hot to stay inside. You would have gone to the movies where at least they had air conditioning. Or here in Chicago, among other places, gone out to sleep in the parks.

[Username1]

zenith and the dumont..... bury the other in the yard. I'll watch over it.

[Red Raster]

Closer than Bush and Gore in 2000 the Dumont edged out the Zenith and if i were to tally the unofficial votes the Admiral would be on the bench.
Thanks for your votes it made waiting for part a whole lot easier.


caps for all three.


Now for the work at hand, It looks like i will be in the dog house.


Mid left view shows that a two section resistor was replaced, After a close inspection i was satisfied with this earlier repair job and it will remain unchanged.


Five chasis mount eletrolytics that will need to be removed restuffed and replaced, Atleast the two big ones with cardboard sleaves will be easy.


This pair will also be easy.


I will also restuff the wax caps.

To be continued with after pictures.

[Phil Nelson]

You made the right choice! Good luck and have fun.

Phil Nelson

[old_tv_nut]

I vote for the DuMont - that cabinet seriously needs straightening <grin>

[Red Raster]

On the last post i just received a box of capacitors and started to restuff the eletrolytics and all the wax paper caps that were restuffable.


The 80uf / 450 VDC were the easiest to restuff.


One of the 80 uf capacitors reinstalled.


Done! all recapped, Some of the capacitors were not suitable canidates for restuffing,
A look of old and new.


At this stage of the restoration was the moment of truth, what
reward will i get when i power up the set? The good news is no smoke
and i have inteligent sound but no raster. Having proper B+ voltages
for the deflection circuits and a text book perfect saw tooth waveform
on the grid of the horizontal output, Hmm the horiz out tube is
suspiciously cold and is definitely not conducting. An open 100 ohm
5 watt current limiting resistor in the cathode circuit will certainly
cause this condition. (blue ceramic resistor that is open)
Now i have sound, a good raster, but no picture and no smoke!.

Well it turns out that the video if stage was starving no B+, The 6AG5s
may be small but they need to be fed. Quick trouble shooting led me
to two open resistors, a 2.5k and 6.8 k part of R 213 a three section
resistor combination. Added are two modern 10 ceramic resistors.

Here is where things really come together, a stable image that was
very easy to setup with the adjustment controls on the rear of the chasis.
As mentioned by some VK members this set is a solid performer when restored and to add that, my expirence with this set is it warms up
quickly and needs no further adjustment. Now for the scary part the Tektronics 2246 is 22 years old and at least has found re employment.


Overal this set has turned out pretty good. I would like to replace
the two multi section resistors with originals and on the cosmetic side
of things one of the wooden knobs is in rough shape and the clear
plastic tuning dial disc is split. A big round of thanks to all the VK members for
your support and input given on this fun and yet to be continued thread.

[Phil Nelson]

Nice work. You're right about the set-and-forget nature of this TV. My RA-103 is the most stable vintage set in the house. DuMonts are fun to work on, too. Very well built.

Phil Nelson

[DaveWM]

Nice, love the string tied wires, Nice work on the stuffing of the caps. Overall a very handsome looking set.

[vts1134]

Fantastic Work! The set looks great. This set is one my potential next projects. I hope mine goes as well as yours.

[Zenith26kc20]

Dumont! What a fiesty critter they can be. But the green tuning tube is so(!) cool!

[old_coot88]

Nice job! Gotta luv the 'mil spec' laced wiring too.