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

Threaded Mode
41-255 Speaker replacement
Eric
Senior Member
****
Posts: 450
Threads: 84
Joined: Nov 2011
City: Cumming, GA
#1

03-15-2020, 01:18 PM
    Hello it's been a while!
I have a Philco 41-255 schematic here.
http://www.nostalgiaair.org/pagesbymodel...013408.pdf

The speaker FC coil is open so I'm faced with putting in a PM speaker. The coil is rated for 1100 Ohms and I have a 1000 ohm 20 watt ceramic resistor. I believe I have figured it out but not sure. I'm posting a hook up picture. Don't want to power it up till someone takes a look at it. I have not totally recapped it yet just the filter caps and increased their value. Checked the tubes and there good. Any opinions?
Thanks Eric
Find
Eric
Senior Member
****
Posts: 450
Threads: 84
Joined: Nov 2011
City: Cumming, GA
#2

03-16-2020, 09:02 AM
Ok my MESS up. 
Had it hooked up wrong Field Coil should have been A & D and voice coil should B & C.
Now for the rest of the recap. Also good news the wiring is in good shape and if I'm careful and not disturb to much this should by an ok restoration.

Amazing what an overnight brain rest will do!

Eric
Find
Eric
Senior Member
****
Posts: 450
Threads: 84
Joined: Nov 2011
City: Cumming, GA
#3

03-16-2020, 01:30 PM
I've recapped the radio and it plays well and even though I increased the value of the Filter caps from 12uf & 16uf to both @ 22uf I'm still getting Hum from the PM speaker. Increase the values to 33uf? Any Thoughts?
Eric
Find
radiodale
Member
***
Posts: 93
Threads: 20
Joined: Aug 2014
City: Greenville, TX
#4

04-12-2020, 09:38 PM
You can make the output cap as large as you want but increasing the input cap too much puts a bigger load on the rectifier.
Dale


http://www.dalesantiqueradio.com/
Website Find
« Next Oldest | Next Newest »




Users browsing this thread:
[-]
Recent Posts
Philco 39-116 radio and remote
Hi Brad, Thanks so much for the info!  Do you happen to have the specs for the PT-86 transformer?  I did not find a lis...RichG — 04:32 PM
Philco 269 - 444 FIVE VALVE VERSION?
Thanks Arran; If your set has five tubes/valves then it could be an A537, V537, or a U527, then again it looks like s...ChasL0001 — 11:07 AM
Philco 29 or 45
29 chassis has a shadow meter while 45 chassis does not. Shadow meter is part no. 27 in the 29 schematic. compare it t...klondike98 — 10:32 AM
Philco 269 - 444 FIVE VALVE VERSION?
Sorry, Chas. Re the burns, I broke my first TV at the age of 3.  Between my electrical experiments :yikes: (My mom wa...MrFixr55 — 09:07 AM
Philco 41-221 Restored
Thanks for the compliment Richard. The tenite grille is original. A few of the horizontal slats were slightly warped so ...RodB — 08:44 AM
Philco 29 or 45
Hello, I have just received a Philco lowboy where the tube layout label in the cabinet says 29 or 45. There is no label ...dconant — 08:29 AM
Philco 41-221 Restored
Mr fixr, That is great news I would love to see repo grille !! I too have a very similar Philco but my cabinet has fab...radiorich — 08:22 AM
Philco 41-221 Restored
Hi Rod, I always tell people that my scars give me character.  :wink:   Great job on the radio.  Is the grille origi...MrFixr55 — 08:00 AM
Philco 269 - 444 FIVE VALVE VERSION?
It looks like the PENDD61 valve/tube must have failed, so someone replaced it with the EBC33, which is a double diode-tr...Arran — 04:29 AM
Philco 269 - 444 FIVE VALVE VERSION?
Hello Chas. Radiomuseum has information on both sets.  Thanks Gary, lots of good info there. Perhaps we'll ha...ChasL0001 — 02:23 AM

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

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