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 90 WW resistor question
#1

I am working on a Philco 90 (1-47 tube) and the large 3-section WW resistor is bad.  I have found the values needed (180 ohm, 60 ohm, 3500 ohm), but am not sure of what wattage resistors I should replace them with.  I found on another thread that they should be replaced with wirewound resistors again for reliability reasons.  It also cautioned against using too high of wattage ratings?

How do I determine the rating?  The tube manual lists the 80 rectifier as having a max plate current of 125ma.  The spec for this radio lists the 80 plate current at 32ma.  Can I use the 32ma to calculate the wattage of these resistors, or are there other factors to consider?  I have yet to find a parts list that shows the wattage rating.

Thanks for any help.
John


Messages In This Thread
Philco 90 WW resistor question - by JohnSchw - 05-22-2022, 11:00 AM
RE: Philco 90 WW resistor question - by JohnSchw - 05-25-2022, 12:48 PM



Users browsing this thread:
[-]
Recent Posts
1949 Motorola 5A9M
This would be the second portable in the "other radios" forum where I have a similar one in my collection. I h...Arran — 12:41 AM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Hi PittsburgTost. The record changer looks like a Garrard or BSR (Likely Garrard). The spindles just pull out and pu...MrFixr55 — 11:57 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Hello PittsburghToast , Welcome aboard and it looks like gary may have something for you ! now if I dig through my se...radiorich — 11:35 PM
Model 80 Antenna Issue?
You are kind of on the right path. You can touch the grid cap of the Detector/Oscillator 36 tube. I'm expecting a respon...RodB — 08:48 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Welcome to the Phorum, PittsburghToast!  I found an old thread that my interest you regarding the quality and worth of P...GarySP — 08:48 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Welcome to the Phorum! :wave: We do not have anything on that unit in our digital library. There is a Sam's Photof...klondike98 — 08:47 PM
Model 80 Antenna Issue?
I’ve replaced all the caps and resistors and the radio is working but minimal volume unless I put my hand near the re...Hamilton — 08:24 PM
Looking for any info: 1977 Ford-Philco Console Hi-Fi Turntable and Radio
Hi there! this is my first time posting. I recently picked up this Ford-Philco Console record player and radio at a yard...PittsburghToast — 07:28 PM
philco predicta
I found that where I have the 140v B+ there is 50v and the tuner receives 235v through the orange cablecgl18 — 04:14 PM
Philco 91 code 221
Chassis grounds thru rivets is another good place to look. Oh and the stator screws on the tuning cap where the leads at...Radioroslyn — 08:11 AM

[-]
Who's Online
There are currently 321 online users. [Complete List]
» 1 Member(s) | 320 Guest(s)
Avatar

>