The Emerson is singing now
Posts: 15,502
Threads: 543
Joined: Oct 2011
City: Jackson, NJ
Actually I like Waltons' styling (excwept for that one that slims down to the bottom and sopo looks a bit like an accordeon with the top streched and the bottom compressed).
It just could be that the creators of the series also liked the styling and that 9S232 (or whichever the actual one is that was there in the series) were chosen not by chance but for a reason.
I just thought...you know what Walton's face reminds me of? The "Death mask face" from "Scream" or "Scary movie".
Posts: 15,502
Threads: 543
Joined: Oct 2011
City: Jackson, NJ
OK,
SO.
I have the chassis in my care now.
This is a stinker!
It is a hot chassis set! No power tranny.
A 7-tuber.
And has Short Wave up to 7 MHz.
So, ID it if you can. It s not K-121 or the other two the colleague of mine found.
I kinda start having my suspicion why the cord is stripped to the bare metal - I think it burned. Easy enough in a hot chassis set.
Isolation transformer, there we go again!
Posts: 4,370
Threads: 410
Joined: Jun 2011
City: Boston
State, Province, Country: Massachusetts
I liked that one with that Keith Park did up, he does nice work. Emerson is middle of the road, some better than others. Some suprising.
Good luck.
Paul
Tubetalk1
Posts: 15,502
Threads: 543
Joined: Oct 2011
City: Jackson, NJ
OK, here's what I have found so far.
From the Radio Attic archive the radio that looks exactly the same with the same exact dial, with SW bandwidth up to 7MHz is AH-162 model.
However the sch for AH-162 shows a 5-tube radio and what I have is a 6 tube chassis (what I thought was the 7th tube is actually the speaker socket - the other guy unplugged it so I thought it was a missing tube until now).
The AH-166 radio sch looks close (AH-185 chassis). Have to try to find the actual radio (cannot right now).
(This post was last modified: 07-26-2013, 08:38 PM by morzh.)
Posts: 15,502
Threads: 543
Joined: Oct 2011
City: Jackson, NJ
OK, I am puzzled.
Here's AH-162.
http://www.radioatticarchives.com/radio.htm?radio=10452
This is my chassis. But it is a 6-tuber and the sch
http://www.nostalgiaair.org/PagesByModel...004773.pdf
shows 5 tubes.
What gives?
Posts: 15,502
Threads: 543
Joined: Oct 2011
City: Jackson, NJ
OK, got it.
The 6th tube is L49BG, a ballast tube, so they do not show it as a tube - bunch of resistor it is.
So, I officially have AH162 Emerson.
Posts: 15,502
Threads: 543
Joined: Oct 2011
City: Jackson, NJ
I also found a broken 78 tube in place of 6D6. They seem to be the same - anyone? The S is the same and the filament current at 6.3V also, which is important in Hot Chassis due to serializing the filaments. 78 has a bit more oomph - 10mA vs 8mA in 6D6.
Another thing: the ballast tube is shot. Only one out of three resistive sections conducts, the rest is open.
Of course knowing that it drops 49V at 300mA helps, but this is almost 15W dissipation. Do I really want to start dropping that on a resistor.....? Plus I need to know the exact "hot" resistances of the sections as two of them parallel the pilot lamps.
(This post was last modified: 07-26-2013, 09:27 PM by morzh.)
Posts: 1,114
Threads: 14
Joined: Feb 2013
City: Irvington, NY
6D6 and 78 are very similar. Interelectrode capacitances are slightly different because 78 has an internal shield surrounding the plate while 6D6 does not which makes it require an external shield.
6D6 was an RCA design based on the 2.5V 58 tube, while the 78 was a competing Sylvania design.
They can easily be interchanged, but you may have to realign the tuned circuits because of the different capacitances.
Posts: 2,118
Threads: 112
Joined: Jun 2010
City: Medford OR (OR what?)
A lot of people like the 78 better than the 6D6.
Emerson is one of the few old radio companies still in business.
"I just might turn into smoke, but I feel fine"
http://www.russoldradios.com/
Posts: 15,502
Threads: 543
Joined: Oct 2011
City: Jackson, NJ
Maybe I should ask them for NOS ballasts
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
http://www.esrcvacuumtubes.com/vacuumtub...lasts.html
They have the L49B, which is the same thing but with a tap for only one pilot lamp. I haven't found anyone yet that has the L49BG for two lamps.
Note: the K49B is a similar single lamp ballast, but requires use of a #47 lamp rather than the #46.
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
Did some more investigation. Your ballast crosses to an L49D. This is also available at the link above.
Posts: 15,502
Threads: 543
Joined: Oct 2011
City: Jackson, NJ
L49B is by definition for one lamp, the original tube in the Emerson is 3CR-241; the L49B is the nex closest thing but will only work with onle lamp.
Posts: 1,106
Threads: 88
Joined: Jun 2011
City: Tacoma
State, Province, Country: Washington
Did you see my next posting? The L49D is a two lamp ballast, directly subbing for the original part number.
Posts: 15,502
Threads: 543
Joined: Oct 2011
City: Jackson, NJ
Thanks Brenda, yes it seems to be the cross.
The problem as I sad before is, they repaired it some time in the past, put L49B in it and probably removed one lamp as I only have one socket there. So no matter which one I use, I will only be able to use one pilot light.
Users browsing this thread: 1 Guest(s)
|
Recent Posts
|
Bakelite crack repair - what is best epoxy?
|
Starting on a Philco 48-1401 Boomerang radio/phonograph. It has one crack on the left side running from the speaker ope...de371 — 07:17 PM |
Philco 89B code 123 newbie
|
Progress continues, finished blocks 9 and 26. I wonder for caps 23 and 24—can I get away with 100pf instead of 110pf?
...Kurt P — 03:43 PM |
Looking for place to donate unique Philco Philco J-1930 Prototype
|
Welcome to the Phorum, jeibner. Several of our members have connections with radio-related museums. I'm sure others wi...GarySP — 03:41 PM |
Looking for place to donate unique Philco Philco J-1930 Prototype
|
I'm looking for a museum or other permanent home where I can donate a unique Philco prototype of a very top of the line ...jeibner — 03:15 PM |
Test bench almost done...
|
Sweet! Yes, that's a lot of planning and work but will pay off! I built mine about 10 years ago using a radio book from ...TV MAN — 11:39 AM |
1950 Emerson TV resurrection attempt
|
Been awhile since I've even been in the radio room. Work work work, kids graduating, going into college, and the list go...TV MAN — 10:35 AM |
Philco 269 - 444 FIVE VALVE VERSION?
|
> So, given that this is a major refurb I don't have the time to spend on this, so happy to pass it on to someone who...Radioroslyn — 09:08 AM |
Philco 269 - 444 FIVE VALVE VERSION?
|
Thanks for this
Hi Chas,
Fix it, don't bin it! Don't sell your skills short. One step at a time and like the Home D...ChasL0001 — 01:48 AM |
Philco 84 antenna connection
|
Have a Philco 80 my long wire is app 30 feet, for a ground in my work shop have a ground rod that is used only for radio...David — 07:47 PM |
Philco 46-480 Cabinet Restoration
|
Thank you, Gary! I appreciate it.jrblasde — 07:24 PM |
Who's Online
|
There are currently 2712 online users. [Complete List] » 2 Member(s) | 2710 Guest(s)
|
|
|
|