1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)

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

Linear Mode
general question
morzh
Odobenus rosmarus
******
Posts: 16,269
Threads: 566
Joined: Oct 2011
City: Jackson State, Province, Country: NJ
#3

03-16-2013, 07:59 PM
The dead short is only seen due to the 1st cap of 10uF, not the second of 60uF. The choke limits the current through the complex impedance, part of which is 2kOhms of active one.

But 60uF will not burn the output xfmr, and the only things that potentially could are: bad output tube 247 or the shorted speaker or a short in prime/second windings of the xfmrs itself.
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
general question - by DKinYORKpa - 03-16-2013, 05:33 PM
RE: general question - by 7estatdef - 03-16-2013, 06:07 PM
RE: general question - by morzh - 03-16-2013, 07:59 PM
RE: general question - by DKinYORKpa - 03-16-2013, 08:32 PM
RE: general question - by Arran - 03-16-2013, 09:31 PM
RE: general question - by morzh - 03-16-2013, 11:33 PM
RE: general question - by DKinYORKpa - 03-17-2013, 07:49 AM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
Philco 91 Restore Code ??
:clap: :clap: :clap: :clap: Really nice workmanship!!! Top of the chassis looks great. Sorry about the long winded e...MrFixr55 — 08:09 PM
Philco 40-120C Restoration
Thank you for your reply. I will check voltages on the other tubes, look at resistor 23 and cap 25, etc. If all else fai...bluecap — 07:58 PM
RCA T62 is playing.....
Nice looking set great save. DavidDavid — 07:48 PM
Philco 89 indicator light.
Hello Jim, I have done several 89s. The trick is to move the drum in or out on it's shaft. You will need to loosen a set...dconant — 07:36 PM
An attempt to remove the Field Coil from a G speaker
MrFixr Yes, it is my plan to go with 45rpm spider if I go that far. No, the pole was not left-handed as I unscrewed ...morzh — 07:14 PM
Philco 40-120C Restoration
Change the tube. Check the tube's bias network. Are any other tubes experience the drop or just this?` Is resistor 23 OK...morzh — 07:09 PM
Philco 89 indicator light.
I forgot how the pointer is formed: could you show the way it is formed and how you tried to change it?morzh — 07:01 PM
An attempt to remove the Field Coil from a G speaker
Was that pole piece left handed ? Since the metal "spider" is toast, wonder if you can either get the "4...MrFixr55 — 06:54 PM
Philco 91 Restore Code ??
Thank you Rod.  Hello MrFixr55. Thank you for the long reply. My radio is the 121 version (1 speaker) and I am aware ...dconant — 06:36 PM
Philco 91 Restore Code ??
Your 8 watt transformer is good, the 42s produce 6 watts and you won't be sending maximum volume to the speaker anyway. ...RodB — 05:54 PM

[-]
Who's Online
There are currently 2687 online users. [Complete List]
» 2 Member(s) | 2685 Guest(s)
AvatarAvatar

>
  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)