Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Philco 38-3XX tube - shielded???
#1

I have a bit of a dilemma. The RF amp tube (a 6U7G) in my Philco 38-3XX console sits in a rather odd-looking socket base. THe socket itself is nothing out of the ordinary, but there is a piece riveted to the chassis that looks like a sort of short cylinder with two sides flattened out, and a hole in the top for the tube to go into. I presume that a shield is supposed to go over this cylinder, but it is the only thing of this type in the radio, and a standard round Philco tube shield is too big, and a Philco square shield is the wrong shape. Is a shield supposed to fit over this? It's at the lower left of the tuning condenser in this photo:

[Image: http://i294.photobucket.com/albums/mm100...744076.jpg]

If a shield IS supposed to fit over this, would someone PLEASE post a photo so I can send it to Mark Oppat at Old Radio Parts and get the RIGHT one? BOTH of us are getting a bit bewildered by this thing...
#2

That looks like it needs the cylindrical aluminum shield used in Philcos with the 6U7G RF amp.

[Image: http://philcoradio.com/phorum/attachment.php?aid=1864]
#3

you could use a round one but on mine it has a square one [just like the others] that sits at an angle to all the rest because the cap wire will not connect if it was turned like the others if it did it would short out david
#4

Mondial is correct - that base was meant for the cylindrical aluminum shield as shown in his photo. I do not know why Philco used this odd shield in certain 1938 models instead of the typical square shields Philco used during that time period.

--
Ron Ramirez
Ferdinand IN
#5

Thanks, all - that's a BIG help! Icon_smile
#6

In some Philcos, the use of this tube shield base also prevents the use of GT style tubes that have a slightly larger base than the G tubes do.

"I just might turn into smoke, but I feel fine"
http://www.russoldradios.com/
#7

The photos were a HUGE help. I now have the correct tube shield. Thanks all!




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Model 70 Cabinet Trim
musar , Well if you have any more questions feel free to post away . Sincerely Richardradiorich — 08:56 PM
Model 70 Cabinet Trim
Although I have not made any cabinets or cabinet parts for a couple of years, I still have some parts left over, includi...Steve Davis — 06:26 PM
philcorepairbench.com - shadow-meter
Thanks Ron.fenbach — 02:43 PM
Model 70 Cabinet Trim
Thank you, Gary. Before making my original post, I had clicked on "Steve Davis Cabinets" only to find that it...musar — 02:25 PM
philco predicta
Welcome to the Phorum, cgl18! I am not your resource for television repair, but lots of friendly help is available here...GarySP — 02:12 PM
Model 70 Cabinet Trim
Welcome to the Phorum, musar! You can send Steve Davis a private message (PM). The site is at the top of the Home page...GarySP — 02:09 PM
Model 70 Cabinet Trim
How do I contact him? The only contact information for him I could find when searching online was a telephone number th...musar — 10:38 AM
philco predicta
Hello, good afternoon, I would like to ask what the possible problem could be if I don't have an image on the screen. I ...cgl18 — 10:19 AM
Philco model 38 code 121 not receiving signal.
So one last question before I finish this radio. Regarding the speaker and output transformer. I salvaged the original o...Stormlord5500 — 09:31 AM
462ron
It’s on the bottom of the homepage of our Philcoradio.com homepage! Ron462ron — 07:20 AM

[-]
Who's Online
There are currently no members online.

>