1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration

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

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

Linear Mode
71b, please help with checking coils
Philco281989
Member
***
Posts: 92
Threads: 14
Joined: Mar 2012
City: Lexington, KY
#1

05-03-2013, 10:09 PM
Hey guys, now that I have some questions answered, I wanted to ask about the coils that are in the radio. This is a 1932 cathedral Philco 71B (single speaker)

There is a R.F. coil
Det. coil
R.F choke
OSC. coil
First I.F. coil

Could any of you guys please tell me the range of Ohms' each of these coils and choke should be at in the circuit when I check them. I need to test each and have a feeling that one of them is bad.

I also need to do a full recap, someone put in a more recent electrolytic, and on a controlled initial power up I didn't pick up a single station with an antenna connected. The audio section is good, I did a in depth check on it.

Thanks for you're help

Jon
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
71b, please help with checking coils - by Philco281989 - 05-03-2013, 10:09 PM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
Philco 46-480 Electronic Restoration
Make sure th eperson who answered is not a scammer (lots of these there now) and the Trus A S, whoever they are and wher...morzh — 12:38 PM
Philco 40-120C Filament Wiring
I would disregard everything that is there now. I do not know who and when changed it. 1. Make sure that what you thi...morzh — 12:36 PM
Model 27-84 BUZZ?Humm?
Depends on the type of hum. SOme is made by outside devices. Try installing an X-cap (0.2-0.5uF) across the AC line, ...morzh — 12:23 PM
Philco 40-120C Filament Wiring
Thank you for your replies. That is the correct schematic and pin out diagram for the rectifier. The resistance acro...bluecap — 11:01 AM
Philco 46-480 Electronic Restoration
Late last night a guy reached out in response to my posting on the Antique Radio Forum and suggested I contact Trust Aut...jrblasde — 11:01 AM
Philco 630csx power cord
Have you opened up that plug? It may be that the third wire is connected to that brass stud on the side of the plug and ...Arran — 02:57 AM
Model 27-84 BUZZ?Humm?
I would have to look at the schematic but it's not uncommon in 1930s AC radios to have the negative of one filter cap co...Arran — 02:46 AM
Model 27-84 BUZZ?Humm?
Hello Bruce, First all do mean a 37-84b ? Did you take any before and after pictures ? is it a buzz like when you touch...radiorich — 01:59 AM
B&K 1077B no video - problem solved
Hello Tim, Yes, I even check all of my replacement parts when I install them and I too had a capacitor go bad not long a...radiorich — 01:54 AM
B&K 1077B no video
I got back into it tonight. Problem found and resolved! Sometimes it helps to take a break and think things over. It was...TV MAN — 12:40 AM

[-]
Who's Online
There are currently 3459 online users. [Complete List]
» 2 Member(s) | 3457 Guest(s)
AvatarAvatar

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration