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

Threaded Mode
Philco 87 question
Micro9
Junior Member
**
Posts: 36
Threads: 15
Joined: Aug 2007
City: Glendale,AZ
#1

05-13-2010, 12:01 AM
Philco 87 chassis has been rebuilt...new caps resistors tubes...I algined it according to the procedure on Philco Radio.com and neturalize the set as well....Radio plays with plenty of voulmm from about 700 up to 1600 but low volumm on stations 700 and below.....any ideas???Thanks... Icon_idea
Find
exray
Phorum Expert
*****
Posts: 893
Threads: 9
Joined: Mar 2008
City: Vieques, PR USA State, Province, Country: PR
#2

05-13-2010, 07:15 AM
Something I'd look for would be a short between plates in one (or more) of the tuning gangs as the tuning cap is meshed closed.
Website Find
Radioroslyn
Phorum Expert
*****
Posts: 7,302
Threads: 269
Joined: Dec 2009
City: Roslyn Pa
#3

05-14-2010, 03:25 PM
Something else to try is tune to a station down at the low end. Then try touching the stators one by one on the tuning cap. If volume increases you've got a tracking issue with the rf amps.
Terry
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
Find
Micro9
Junior Member
**
Posts: 36
Threads: 15
Joined: Aug 2007
City: Glendale,AZ
#4

05-15-2010, 08:41 PM
Thanks for the input...Looks like I have an open RG coil to the 1st RF tube...
took it aprt and it is broken in 4 diffent places....Does anyone have a spare RF coil for a Philco 87?? Philco part number is
3075-A
Find
Micro9
Junior Member
**
Posts: 36
Threads: 15
Joined: Aug 2007
City: Glendale,AZ
#5

05-17-2010, 12:52 AM
UPDATE...
Got brave and soldered the wire back together and rewound the coil...Put it
back together and realign and Neuturalized it and now the lower station come in loud and clear...
Thanks for everone's help on this...
Find
Ron Ramirez
Silent Key
*****
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana
#6

05-17-2010, 10:23 AM
That is good news. Congratulations! Icon_biggrin
--
Ron Ramirez
Ferdinand IN
Find
« Next Oldest | Next Newest »
Thread Closed




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
My collection presentation
Vlad; I thought your brown RCA portable looked familiar, I have one that is very similar, the RCA-Victor model BX-55....Arran — 02:31 AM
Value of capacitor
OP is "original poster"klondike98 — 11:05 PM
Value of capacitor
What is an OP?  Looks like the “OP” mistakenly typed electrolytic.  Lets forgive him.Joe Rossi — 06:31 PM
Another amp build - here I go again!
How many amps a man can have? I say, as many as the space can hold.morzh — 10:01 AM
Value of capacitor
>>>It currently has an .005 1000 volt electrolytic that is at least 40 years old. That needs to go. There i...morzh — 10:00 AM
One irritating little amp - VM 557
The VM amps were kinda weird, but as you say, they did work well until they didn't. I just got a bag full of new tube so...TV MAN — 08:56 AM
Another amp build - here I go again!
I have a pair of Mk3 Dynas and they always sounded great with plenty of punch. 6550 is the same as a KT88 except usually...TV MAN — 08:45 AM
philco predicta
As Mr. Fix says, this is a live chassis so without an isolation transformer, it can be dangerous to work on. There's goo...TV MAN — 08:33 AM
Value of capacitor
If this helps you sort it out just remember 10,000 mmfd or pf = .01 mfd. So 5,000mmfd = .005 mfd.Radioroslyn — 04:23 PM
Value of capacitor
OP here- the parts list calls for an .005 1000 volt mica. It currently has an .005 1000 volt electrolytic that is at lea...bridkarl — 02:09 PM

[-]
Who's Online
There are currently 1884 online users. [Complete List]
» 1 Member(s) | 1883 Guest(s)
Avatar

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