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

Linear Mode
Why were resistors put in bakelite blocks?
Arran
Phorum Expert
*****
Posts: 4,804
Threads: 54
Joined: Sep 2008
City: Sandwick, BC, CA
#3

04-26-2016, 05:49 AM
 As Morzh stated I don't think that heat dissipation was a concern with any resistor potted inside a Bakelite block, they were likely used in a low current application like a grid bias resistor or a cathode bias resistor for a lower current tube like an If or an RF amplifier. As yet I haven't found one of these potted resistors, all of the Philcos I have worked on used the terminals on top of the blocks to mount resistors.
Regards
Arran
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
RE: Why were resistors put in bakelite blocks? - by Arran - 04-26-2016, 05:49 AM



Users browsing this thread: 4 Guest(s)
[-]
Recent Posts
Restoring Philco 96
Have just aligned it. Surprisingly, it was not that much off at all. Barely. Aligning TRF sets is pure pleasue, as ther...morzh — 07:52 PM
6TPZ and 5TPO Radio Help
1 - 0v - correct 2 - 0v - correct 3 - 0v - --------------------- both 3 and 4 should be the same. Check L2 for being ope...morzh — 05:15 PM
B&K 1077B no video
I'm going to get back into it tonight. but I disconnected the 2 main resistors off this supply going to different parts ...TV MAN — 04:04 PM
6TPZ and 5TPO Radio Help
Sorry. The test points are as follows: 1 - 0v 2 - 0v 3 - 0v 4 - 12v 5 - 0v 6 - 11.9v 7 - 12v 8 - 12v 9 - 12v...R3Sons — 02:09 PM
6TPZ and 5TPO Radio Help
OK, so 18 and 19 as they should be. What is "everything else?" Try to be more specific in your descriptions:...morzh — 12:44 PM
6TPZ and 5TPO Radio Help
Yeah, I'm still on 5TPO. Sorry, my bad, points 1 and 2 should be points 18 and 19 (easy mistake  :think: )  X7 is shown ...R3Sons — 11:42 AM
Philco 40-120C Filament Wiring
Hi folks, I'm in the process of restoring a Philco 40-120C and I'm finding the wiring to be a bit puzzling. According to...bluecap — 11:28 AM
462ron
Hi Levi, here’s just a thought. Most radios run the oscillator higher than the dial setting. Say you set your radio to 1...462ron — 10:10 AM
1930s Stewart-Warner Tombstone Radio need help identifying model number
Another Update: I found a couple of damaged coils inside this radio that might have something to do with why this radio ...captainclock1988 — 10:51 PM
6TPZ and 5TPO Radio Help
If you are still on 5TPO, you lost me there. What X7? What Points 1 and 2?morzh — 08:37 PM

[-]
Who's Online
There are currently 7531 online users. [Complete List]
» 2 Member(s) | 7529 Guest(s)
AvatarAvatar

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