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

Adding AVC to Early Model 70 - Need Opinion
#18

An early Model 70 without AVC will be super-sensitive...because, with no AVC to reduce the gain of the receiver on strong broadcast signals, the receiver is operating at "full throttle" all of the time. On a later Model 70 with AVC, the gain will vary depending on the strength of the received signal due to the AVC action.

I used to have Ed Locker's modified 70 schematic around here somewhere, but with my newer computer currently being dead, I'm not sure if it is stored on it or not.

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Re: Adding AVC to Early Model 70 - Need Opinion - by Ron Ramirez - 03-18-2009, 04:29 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Bakelite crack repair - what is best epoxy?
Thanks everyone. I appreciate you sharing your experience and looks like I'll work with the 24 hr two part clear epoxy....de371 — 10:25 PM
Jackson 665 j2 schematic request
Without a schematic its going to be hard tracing the wire wound spool resistors.daveone23 — 05:21 PM
Jackson 665 j2 schematic request
Looking for a schematic for the 665 j2 multimeter.daveone23 — 04:42 PM
Looking for place to donate unique Philco Philco J-1930 Prototype
>>I'll write to the Henry Ford. I heard, his secretary answers his mail, not he himself.morzh — 12:15 PM
Philco 48-200 alignment questions
Just checked the power cord and I did in fact wire it so the hot side (small prong) goes to the switch.transitony — 11:52 AM
Looking for place to donate unique Philco Philco J-1930 Prototype
Thanks for the suggestions.  I'll write to the Henry Ford.   That would certainly make sense since by the time this prod...jeibner — 11:49 AM
Looking for place to donate unique Philco Philco J-1930 Prototype
For what it's worth, the Henry Ford Museum and Greenfield Village in Dearborn, Michigan may be an option. The obvious ...GarySP — 11:39 AM
Help with Readrite 410 tube tester
Mike and I just had a short discussion yesterday about this very subject. So often it's the connections. Ya gotta have t...RodB — 10:08 AM
Looking for place to donate unique Philco Philco J-1930 Prototype
We have a regional museum here in the Twin Cities called The Pavek Museum. They have an extensive collection of communic...RodB — 09:30 AM
Philco 89B code 123 newbie
I did some nosing around and found that the original caps were 4 3/4" long x 1 5/16" in dia. Guess what 1"...Radioroslyn — 09:28 AM

[-]
Who's Online
There are currently 4354 online users. [Complete List]
» 3 Member(s) | 4351 Guest(s)
AvatarAvatarAvatar

>