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
650 alignment
etech
Member
***
Posts: 237
Threads: 24
Joined: Dec 2007
City: Gladwin, MI
#3

08-01-2008, 02:38 PM
I just finished a 650B and found that the rf tracking can be improved on the broadcast band by cheating the dial scale alignment somewhat. With the tuning gang plates fully meshed, try setting the dial scale to the first line to the right of the end of scale line. Now re-align and check your rf tracking. If it is better, but not perfect, move the dial scale a little more in the same direction and try again. I found this procedure helps somewhat.

Ed
Find
« Next Oldest | Next Newest »
Thread Closed


Messages In This Thread
650 alignment - by DCASAZZA - 07-30-2008, 10:59 AM
[No subject] - by BDM - 07-30-2008, 06:19 PM
[No subject] - by etech - 08-01-2008, 02:38 PM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
An attempt to remove the Field Coil from a G speaker
Q8. What's the meaning of life? I have read that someone made a spider out of the clear plastic from bubble packagin...RodB — 11:07 AM
An attempt to remove the Field Coil from a G speaker
So, Q1. Does anyone know where to get the spider. Q2. If there is no such place, what material is best? I doubt tin is...morzh — 09:43 PM
An attempt to remove the Field Coil from a G speaker
Arran The oxidation seems to go deep, a few layers. The break starts right there, but then it will occur on every la...morzh — 07:35 PM
An attempt to remove the Field Coil from a G speaker
Mike, This is just a thought, the are on the coil where the verdigris (green oxidation is) I wonder if that is where ...Arran — 06:32 PM
An attempt to remove the Field Coil from a G speaker
Mike; I've made a one or two spiders by using some card stock, and a razor blade, it took more then one try but they ...Arran — 05:48 PM
Philco 91 Restore Code ??
I wondered about that. Wish there was some place local to get this stuff.dconant — 04:20 PM
Philco 89 indicator light.
Bending the lamp bracket (moving the lamp, that is) can possibly change the shape of the pointer a bit, but not its loca...morzh — 04:01 PM
Philco 91 Restore Code ??
Because the usable power rating of it then is (3,200/20,000)*25W= 4W. Maybe a tad more due to the mass, but not much. Yo...morzh — 03:59 PM
Philco 89 indicator light.
Thank you Dan, that was the trick. I kept trying to rebend the lamp bracket but that wasn't doing anything to help.Jim Dutridge — 02:18 PM
Philco 91 Restore Code ??
20K 25 watt. I thought it was a 20 watt at first.dconant — 01:37 PM

[-]
Who's Online
There are currently 5738 online users. [Complete List]
» 1 Member(s) | 5737 Guest(s)
Avatar

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