1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
Philco speaker with bad coil.
morzh
Odobenus rosmarus
*****
Posts: 15,817
Threads: 554
Joined: Oct 2011
City: Jackson, NJ
#2

01-28-2020, 06:38 PM
If you replace it with a resistor (which will be a high wattage one) it should be a close match in ohms to the coil (1100 - 1200 ohm) to keep the DC voltages the same.
Keep the value of the first electrolytic cap (the one across the rectifier tube) the same.
You could safely double the value of the cap after the resistor to compensate for the lack of inductance in the filter. Or even triple.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Find
« Next Oldest | Next Newest »


Messages In This Thread
Philco speaker with bad coil. - by harley92 - 01-28-2020, 04:06 PM
RE: Philco speaker with bad coil. - by morzh - 01-28-2020, 06:38 PM
RE: Philco speaker with bad coil. - by harley92 - 01-29-2020, 12:24 AM
RE: Philco speaker with bad coil. - by morzh - 01-29-2020, 09:26 AM
RE: Philco speaker with bad coil. - by harley92 - 01-29-2020, 08:53 PM
RE: Philco speaker with bad coil. - by morzh - 01-29-2020, 09:06 PM
RE: Philco speaker with bad coil. - by harley92 - 01-30-2020, 02:11 AM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco 42-1008 conversion kit
I read about a kit to convert the variable speed changer in the Philco 42-1008 into a single speed unit.  That would rem...alangard — 09:30 PM
HiFi (Chifi) tube amp build - but my own design.
Tim Well...a chassis is metal. Magnetic or not, it does not matter. A transformer has some hum to it. It is natural....morzh — 08:40 PM
Shadow Meter Bulb
Ross I am not sure what current limiting effect the incandescent provides. They are two different parts of the sch...morzh — 08:31 PM
12' Philco
Bob Thanks for that photo. I have been looking for it, and I cannot find anythinmg on the web. I forgot it was here...morzh — 08:29 PM
Shadow Meter Bulb
I think after all has been said, I will use the same bulb that is specified for the dial pilot light which is a #55. I ...georgetownjohn — 07:31 PM
12' Philco
There was also this Philco! klondike98 — 07:25 PM
HiFi (Chifi) tube amp build - but my own design.
I expected a challenge and this is just part of it. But, it's also supposed to be fun, entertaining, informative and enj...TV MAN — 07:12 PM
Shadow Meter Bulb
Butting in here with a question. Since the shadow meter is connected directly to the 1st and 2nd I.F.'s wouldn't the met...RossH — 06:43 PM
HiFi (Chifi) tube amp build - but my own design.
Mike, Tim; you are about to enter the twilight zone. Doo doo doo doo, doo doo doo doo This is something alright. I'm go...RodB — 06:26 PM
HiFi (Chifi) tube amp build - but my own design.
:lol: We need to start a singing radio group! I play the guitar, so maybe get a few vocals? Anyways, Mike, I did try mou...TV MAN — 05:56 PM

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

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