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

Philco 48-482 low vol on AM
#7

Yes...The IF cans were tweaked using a signal gen...
Using Sams 4720-24 the voltages on pins 3 and 6 of the 7F8 are off.Pin3= 115 should be 138
Pin 6= 111 should be 130
ON pins 5& 6 of the 7B6 are both -.45
pin 5 should be -.50 and pin 6 should be -.23
The rest of the tube pin voltages are ok..


Messages In This Thread
Philco 48-482 low vol on AM - by Micro9 - 07-15-2017, 02:33 PM
RE: Philco 48-482 low vol on AM - by morzh - 07-15-2017, 02:47 PM
RE: Philco 48-482 low vol on AM - by klondike98 - 07-15-2017, 02:52 PM
RE: Philco 48-482 low vol on AM - by Micro9 - 07-15-2017, 03:46 PM
RE: Philco 48-482 low vol on AM - by Micro9 - 07-15-2017, 03:49 PM
RE: Philco 48-482 low vol on AM - by Radioroslyn - 07-16-2017, 02:48 AM
RE: Philco 48-482 low vol on AM - by Micro9 - 07-17-2017, 03:44 PM
RE: Philco 48-482 low vol on AM - by klondike98 - 07-17-2017, 06:27 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
New Philco Repair Bench
I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM
Made mistake & did not label connection
It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires. Why'n't you...morzh — 09:49 PM
Made mistake & did not label connection
I'm not sure why that wire wasn't covered in the video. I'm pretty sure the 6A8 won't work until that pin is grounded. Y...RodB — 09:47 PM
Made mistake & did not label connection
You'll have to forgive me, I am not sure what you mean.  Can you explain what you are really saying.  If anyone does not...georgetownjohn — 08:05 PM
Made mistake & did not label connection
Those are details better left to the ones who know. Maybe you disconnected the wrong end of the wire.RodB — 06:22 PM
Made mistake & did not label connection
Maybe this is starting to make some sense in my hard head.  Is this why the wire in question was not in the great Ron Ra...georgetownjohn — 04:34 PM
Made mistake & did not label connection
I was correct with the 6A8 pin connection's, 7 and 8 are connected to ground as well as the tube shield (the broken line...RodB — 02:41 PM
Made mistake & did not label connection
What does the dotted line representing that surrounds the tube in the schematic?georgetownjohn — 02:17 PM
Made mistake & did not label connection
Hello John, I have been there either label got lost or was not labeled ! Sincerely Richardradiorich — 02:15 PM
Made mistake & did not label connection
Sorry, it is a Philco 37-640.  Does that help?--Johngeorgetownjohn — 02:14 PM

[-]
Who's Online
There are currently no members online.

>