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 38-33
#1

This is my first time so please be patient. A friend of mine bought ( E-Bay ) what he thought was a Philco 38-33 from the US but alas it wasn't.
A 38-33 is supposed to be a battery radio but the one that was sent to him was a 110v AC model. There is no model number on the chassis but the dial does have the Philco label on it. The tube line up is 50L6-35Z5-12Q7-12A8-12K7. My problem is this, the radio had been "got at" by someone who didn't know what they were doing resulting in missing components as well as incorrect wiring. I spent many hours trying to find to identify the chassis on Nostalgia Air's site without success. My other option is to draw out the circuit as presented to me. It was by chance that I came across this Phorum and am hoping that someone may be able to help.

Kind Regards

Rudy

Brisbane Australia
#2

Rudy,
I don't know what kind of changes were made, but I don't see a Philco with those tubes either.
A schematic for one ot these radios might be usefuel:
http://grillecloth.com/sylvania/tubelist...ubmit&db=4

Carl
Northern Panhandle, WV
#3

Could be that someone tried to convert the radio to run on 120 volts AC/DC by using those tubes in place of the originals, and doing some creative rewiring. I've seen a few battery and DC sets that have had this done by someone in the past.

This will make the restoration much more challenging.

I don't believe Philco ever used 12A8, 12K7 and 12Q7 tubes in any of their sets. This, along with your statement that the radio has missing components and incorrect wiring, makes me more convinced that your set was converted to AC/DC by someone.

--
Ron Ramirez
Ferdinand IN
#4

Thanks Ron and Carl,
I will check further. Is it possible to send pictures of the radio ?

Regards

Rudy




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
B&K 1077B no video
Hello Tim, I would if it's a leaky Capacitor So are all 3 of those B- voltages low then ? Sincerely Richardradiorich — 01:55 AM
B&K 1077B no video
I found a schematic and think I have the problem traced down to the minus power supply. I have very low voltages that go...TV MAN — 12:41 AM
RCA 15X
I'd try replacing the bulb first and if that doesn't do it, then change the 35Z5 and see if the problem goes away.NostalgiaRadioTime — 12:28 AM
B&K 1077B no video
Hello Tim, I have that exact unit in my shop too plus a Sencore unit there are times I like one or other !!. Sincerely...radiorich — 11:07 PM
RCA 15X
Everthing goes at once, maybe it's the cold weather, I have had 2 dial strings break and no my little RCA is having dial...Paul Philco322 — 10:26 PM
Philco 91 Schematic
Hi Dan, I can't explain this specific resistor but I have seen the use of a switch to apply B+ voltage to screen gri...RodB — 09:36 PM
6TPZ and 5TPO Radio Help
I suspect it's been repaired before. And I suspect whoever repaired it, wanted to re-use old transistors' pin stubs in o...morzh — 09:24 PM
B&K 1077B no video
Thanks Rich! I'll take a look and see what he has. I know there's more modern equipment to be had, but this one I know a...TV MAN — 09:11 PM
B&K 1077B no video
Hello Tim, Here is a link to restoration of one on Phil's old radios site ! Sincerely Richard bk1077bradiorich — 09:01 PM
6TPZ and 5TPO Radio Help
I'm a little befuddled on this one. Should X5 and X4 be tied together like this?  It looks like someone added this at so...R3Sons — 07:33 PM

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

>