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 604 Bias Cell
Radioroslyn
Phorum Expert
*****
Posts: 7,294
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
#17

03-29-2018, 10:14 PM
< the series resistor in the filament circuit gets really hot, like unpleasant to put my finger on the back side of the chassis.  Is this normal?
Yes it's dissipating about 17wts of energy (55v @.3A). That is about the same as two 50L6's.

<  Is it possible I have the wrong lamp?
To be honest I don't remember (I have a 604 but it's been a while since I've had a look at it.) Chuck had a list of the Philco p# vs standard bulb but his site lately has been just a mere shadow of what it was.There are 3.3v @ 150ma bulbs mostly used in post war RCA sets.


GL
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
(This post was last modified: 03-29-2018, 10:17 PM by Radioroslyn.)
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
Philco 604 Bias Cell - by mboessen - 03-28-2018, 03:37 PM
RE: Philco 604 Bias Cell - by morzh - 03-28-2018, 05:02 PM
RE: Philco 604 Bias Cell - by mboessen - 03-28-2018, 08:28 PM
RE: Philco 604 Bias Cell - by PhilcoPhan1936 - 03-29-2018, 04:16 AM
RE: Philco 604 Bias Cell - by Arran - 03-29-2018, 05:12 AM
RE: Philco 604 Bias Cell - by David - 03-29-2018, 08:24 AM
RE: Philco 604 Bias Cell - by Radioroslyn - 03-29-2018, 08:44 AM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 09:24 AM
RE: Philco 604 Bias Cell - by 462ron - 03-29-2018, 10:12 AM
RE: Philco 604 Bias Cell - by morzh - 03-29-2018, 10:47 AM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 10:57 AM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 11:00 AM
RE: Philco 604 Bias Cell - by 462ron - 03-29-2018, 01:34 PM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 03:06 PM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 09:31 PM
RE: Philco 604 Bias Cell - by mboessen - 03-29-2018, 09:39 PM
RE: Philco 604 Bias Cell - by Radioroslyn - 03-29-2018, 10:14 PM
RE: Philco 604 Bias Cell - by 462ron - 03-29-2018, 10:30 PM
RE: Philco 604 Bias Cell - by Radioroslyn - 03-29-2018, 11:04 PM
RE: Philco 604 Bias Cell - by mboessen - 03-30-2018, 08:49 AM
RE: Philco 604 Bias Cell - by 462ron - 03-30-2018, 10:07 AM
RE: Philco 604 Bias Cell - by Radioroslyn - 03-30-2018, 12:22 PM
RE: Philco 604 Bias Cell - by mboessen - 03-30-2018, 07:41 PM
RE: Philco 604 Bias Cell - by Arran - 03-31-2018, 02:20 AM
RE: Philco 604 Bias Cell - by mboessen - 03-31-2018, 10:32 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
Atwater-Kent 84, restoration.
Hello mike, What nice looking radio I have one AK in my collection it's a console I have not started restoring it yet ....radiorich — 11:21 PM
91H Code 126 Restore
Just to make it more confusing here is another model 91 schematic that doesn't show parts with dotted lines in that spot...Arran — 10:37 PM
Atwater-Kent 84, restoration.
The wires were desoldered from the can, and the capacitors checked. All checked at 0.102 uF, which is correct. So the c...morzh — 09:41 PM
An attempt to remove the Field Coil from a G speaker
Arran Yours probably then the H speaker, same as mine.morzh — 08:39 PM
An attempt to remove the Field Coil from a G speaker
Mike; I would like to have a look at the speaker in my model 96, but the set is packed into a corner in the basement. ...Arran — 08:04 PM
91H Code 126 Restore
Thanks Arran, I'm convinced the power cord is good but have a nice repro plug for it. Would it be prudent to add a fus...RealRider — 07:28 PM
91H Code 126 Restore
As I was studying this schematic I was wondering what does this dotted line means?  I haven't traced it out yet. An o...RealRider — 07:22 PM
91H Code 126 Restore
When it comes to the cloth covered power cords, if they are not frayed, and are flexible, and if I can bend one without ...Arran — 06:21 PM

[-]
Who's Online
There are currently 2716 online users. [Complete List]
» 1 Member(s) | 2715 Guest(s)
Avatar

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