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

Philco 89 Lower Frequencies
#9

Sorry about all the messages I'm leaving. I'm just trying stuff and letting you know. I got my cheap scope out and put the probe on the stationary oscillator section of the tuning cap. I saw the frequency change from one end of the dial to the other. After removing the probe I find the radio plays from one end of the dial to the other. I don't get it. The scope is as basic as you can get so I have no idea what I was seeing. It just quit again. Put the probe back on and I see the waveform stops shortly before 1000kc but I pickup strong stations very weak until about 900kc. What I see on the scope between 900 and 1000 is the frequency does not change but after 900 the scope goes flat line. The probe is a low capacity probe scope on a Conar kit I built.


Messages In This Thread
Philco 89 Lower Frequencies - by dconant - 12-10-2023, 03:08 PM
RE: Philco 89 Lower Frequencies - by klondike98 - 12-10-2023, 05:33 PM
RE: Philco 89 Lower Frequencies - by MrFixr55 - 12-11-2023, 09:06 AM
RE: Philco 89 Lower Frequencies - by dconant - 12-11-2023, 09:27 AM
RE: Philco 89 Lower Frequencies - by Radioroslyn - 12-11-2023, 10:28 AM
RE: Philco 89 Lower Frequencies - by dconant - 12-11-2023, 12:07 PM
RE: Philco 89 Lower Frequencies - by dconant - 12-11-2023, 01:17 PM
RE: Philco 89 Lower Frequencies - by dconant - 12-11-2023, 04:42 PM
RE: Philco 89 Lower Frequencies - by dconant - 12-11-2023, 06:06 PM
RE: Philco 89 Lower Frequencies - by Radioroslyn - 12-11-2023, 08:45 PM
RE: Philco 89 Lower Frequencies - by dconant - 12-16-2023, 07:06 PM
RE: Philco 89 Lower Frequencies - by Radioroslyn - 12-16-2023, 10:10 PM
RE: Philco 89 Lower Frequencies - by RodB - 12-16-2023, 10:11 PM
RE: Philco 89 Lower Frequencies - by dconant - 12-17-2023, 09:55 AM
RE: Philco 89 Lower Frequencies - by RodB - 12-17-2023, 11:01 AM
RE: Philco 89 Lower Frequencies - by dconant - 12-17-2023, 11:12 AM
RE: Philco 89 Lower Frequencies - by Radioroslyn - 12-17-2023, 02:42 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM
12' Philco
And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM
IF can wire size and Rubber mounts?
Arran If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM
12' Philco
Rod, Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently. H...morzh — 12:54 PM
Hickok AC51 tube tester
Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM
IF can wire size and Rubber mounts?
Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM
Hickok AC51 tube tester
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full s...DaleHCook — 07:09 AM
IF can wire size and Rubber mounts?
A pair of wire strippers can give you an idea of what the existing gauge of the wire leads are in the IF can, I think it...Arran — 06:07 AM
My last cabinet for this year
Hello Dan, That is really beautiful what great looking radio you have ! I have friends who live in Calgary and the wea...radiorich — 01:51 AM

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

>