View Full Version : New project Hallicrafters 818


Red Raster
06-24-2011, 11:25 PM
It was me, I bought the hallicrafters 818 in Seattle.
http://www.pbase.com/redraster/image/135847480.jpg
You may have seen the ebay photo showing the tv intact, I know you would
like a closer look. No need to make another aquarium as a good crt sits on top waiting to be put back.
The owner said that she watched programs on this set up untill she was 5 years old.

http://www.pbase.com/redraster/image/135847482.jpg
Chasis is a little dusty and rusty. Missing the 5U4 was a bonus, Preventing
the owner doing damage by trying the set out before selling it.

http://www.pbase.com/redraster/image/135847485.jpg
Beyond the dust a ring test revealed a good flyback and of course
not having half of the wax tire sitting at the bottom of the hv cage is also a good thing.

http://www.pbase.com/redraster/image/135847520.jpg
Over all the bottom view looks promising.

http://www.pbase.com/redraster/image/135847521.jpg
I was impessed by methode of construction used for the rf tuner not only is it realy solid it's by far one of the easiest to work on.
With a good 16GP4, flyback and power transformer this set is on the way.
Well after postal strike is over and i get my capacitors from just radios. :yes:

http://www.pbase.com/redraster/image/135804570.jpg
Yes the blue tube tested good, Half a dozen good 6SN7s didn,t hurt either. :thmbsp:

Phil Nelson
06-24-2011, 11:48 PM
Handsome set, and that's an interesting turret tuner with the little printed-circuit traces.

Phil Nelson
http://antiqueradio.org/index.html

Eric H
06-24-2011, 11:59 PM
Nice set!
In the shot of the underside, it looks like a small pink power resistor (towards the top) might be burned in two?

bandersen
06-25-2011, 12:56 AM
Congrats! That's a really cool set - I love the tuner.
I have a few of those Arturus tubes too. They were only a few bucks each on ebay back in 2005/6. I suspect they are worth a bit more now.

P.S. You take really nice photos :yes:

jeyurkon
06-25-2011, 11:37 AM
Just looking at that tuner gives you good feelings!:thmbsp:

Red Raster
06-26-2011, 11:09 PM
Of all the tuners i have worked on, I think this one takes the prize for beauty
and good engineering. While waiting for capacitors i decided to clean and lube
bushings and contacts.

http://www.pbase.com/redraster/image/135918580.jpg

http://www.pbase.com/redraster/image/135918617.jpg
The round contacts on the channel strips were easily pollished using a pencil eraser. Notice the copper plate used for adjusting the oscillator,This simple solid design sure beats tuning slugs in card board tubing.

http://www.pbase.com/redraster/image/135918654.jpg
Could there be a nicer tuner work on?

http://www.pbase.com/redraster/image/135918585.jpg
Drum assy, The shaft sleaved with brass bushings.

Also polished the stationary contacts and applied tuner lube.

Round 2 may be a little tougher

http://www.pbase.com/redraster/image/135918668.jpg
Supprisingly the broken wire wound resistor is still hanging by a thread and has continuity (R181 220 ohm 3 watt) couples the cathode of the horizontal output tube to ground. Careful scrutiny of the output circuit will done as both resistor and tube have been running a little hot.
TO BE CONTINUED. :yes:

moltogordo
07-06-2011, 02:29 PM
Well documented and photographed.