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

Philco 90 RF Grid Reception?
#4

Please see the schematic and by serial number or landmarks see which chassis you have. There seem to be some differences in the antenna to RF arrangements. I assume you have done an alignment, because the symptoms you have could be caused by mistuning of the first stage, or a bunch of crap caught in the compensating capacitors. There also seems to be some information on resistances, etc.

Why not treat yourself to some better quality schematics on co moderator Chuck' Schwark's site:

http://www.philcorepairbench.com/schematics.htm

Meanwhile I'm sure others will have some thoughts.


Messages In This Thread
Philco 90 RF Grid Reception? - by Joe - 02-02-2012, 11:48 PM
Re: Philco 90 RF Grid Reception? - by codefox1 - 02-03-2012, 12:42 PM
Re: Philco 90 RF Grid Reception? - by Joe - 02-03-2012, 03:15 PM
Re: Philco 90 RF Grid Reception? - by codefox1 - 02-04-2012, 01:03 AM
Re: Philco 90 RF Grid Reception? - by Ron Ramirez - 02-05-2012, 03:35 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 60 Squealing
I have recapped and replaced out of tolerance resistors and so on. Radio plays nicely on fairly strong stations. The pro...dconant — 10:55 AM
Philco 46-420 Code 121 Reception issues
Welcome Eric, I agree with Bob and far as the two main electrolytic filter capacitors did you change them yourself or w...radiorich — 11:43 PM
Philco 46-420 Code 121 Reception issues
You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM
Philco 42-1008 conversion kit
Interesting. I haven't seen that before.klondike98 — 07:02 PM
12' Philco
Yes I had looked for it on the web as well some time back and could not find it. I was glad to see it turned up in Ron'...klondike98 — 06:59 PM
Shadow Meter Bulb
Now if you had a set with a tuning light then the bulb type is important to the circuit, some sets used those prior to t...Arran — 04:58 PM
Shadow Meter Bulb
Ok. Thanks for the correction.RossH — 03:09 PM
Model 28L
For 28 you will probably need to buy a Hammond 125CSE. Or any of the series of the power you need, with SE suffix. Then ...morzh — 02:09 PM
37-60 revision 6
I am restoring a Philco 37-60 and it shows run 6 they removed the ground from G3 of the 6K7G and put the G3 to -2.5v for...bobbyd1200 — 01:01 PM
Shadow Meter Bulb
Mike is correct on the bulb connection, two separate circuits. I found that by rotating the bulb and sliding it forward ...RodB — 12:19 PM

[-]
Who's Online
There are currently 2899 online users. [Complete List]
» 1 Member(s) | 2898 Guest(s)
Avatar

>