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:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
Philco 41-295 XXL tube voltage readings
RodB
Phorum Expert
*****
Posts: 1,088
Threads: 44
Joined: Feb 2015
City: Roseville, MN
#4

10-18-2022, 11:22 AM
Hi Glenn,

I've been looking at the fine refinement voltage chart. It appears some of the tube bias voltages are wrong. If you look at the grid of XXL tube one it connects to the bias network in the power supply. You show 47 volts and it should probably be -5. My first question is when you replaced the power supply filter cap 83, did you connect the negative lead to ground? If not then we should measure the voltage between ground and each junction of the voltage divider resistors 82, 82A and 82B. You should get 3 negative voltages.
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
Philco 41-295 XXL tube voltage readings - by GRG - 10-16-2022, 02:17 PM
RE: Philco 41-295 XXL tube voltage readings - by RodB - 10-18-2022, 11:22 AM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
Atwater-Kent 84, restoration.
Well, powering it up would be too good to be true, and I had that feeling. Before I did, I decided to check the coils...morzh — 06:02 PM
An attempt to remove the Field Coil from a G speaker
Thanks Chas, sure will give it a look!morzh — 03:39 PM
An attempt to remove the Field Coil from a G speaker
Mike, Lookup  murrayatuptown on ARF. Seems he has a dilemma with surplus field coils. Could get lucky and have what y...Chas — 01:26 PM
Atwater-Kent 84, restoration.
Hello Mike, I have not checked to see if my console has a fuse or not and far as sets go I have early 30s General Motor...radiorich — 11:25 AM
Atwater-Kent 84, restoration.
Ron I forgot, but when you said "phone number", I remembered, caus I usually remember how I act when I need...morzh — 11:12 AM
Atwater-Kent 84, restoration.
You have an extensive collection of Philcos, Mike! I’m always excited to see each new one. Agreed on the power supply fu...jrblasde — 10:50 AM
462ron
Hi Mike, that 84 sure looks great. You don’t often see these antique radios with a fuse like yours has. I usually instal...462ron — 10:22 AM
Atwater-Kent 84, restoration.
Hello Mike, Wow ! far as my AK it does work and the cabinet is in nice shape so is my chassis anyway here is a photo of...radiorich — 02:59 AM
Atwater-Kent 84, restoration.
Nice radio, Mike! Here's hoping it was well rebuilt. Take care and BE HEALTHY! GaryGarySP — 12:12 AM
Atwater-Kent 84, restoration.
Rich yes, this is the way I got it. I have just put it on the table and took it apart. I suspect it even might work,...morzh — 11:31 PM

[-]
Who's Online
There are currently 3221 online users. [Complete List]
» 4 Member(s) | 3217 Guest(s)
AvatarAvatarAvatarAvatar

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