1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
40-200 Push Buttons
Arran
Phorum Expert
*****
Posts: 4,705
Threads: 51
Joined: Sep 2008
City: Sandwick, BC, CA
#8

11-01-2018, 04:14 AM
I don't know how the pushbuttons are designed in the 40-200, but in some sets it's quite normal for there to be a range for each pushbutton,
so the lower ones won't tune in anything above a certain frequency, whilst the upper ones won't tune bellow a certain frequency. These are the banks that have an oscillator coil for each button, with a slug, and a trimmer, and they are electrically switched in and out of the front end. Some Philcos don't use this setup, they switch in a trimmer, and or a padder for each button rather then a coil, in which case each button should work across the dial.
Regards
Arran
Find
« Next Oldest | Next Newest »


Messages In This Thread
40-200 Push Buttons - by drrenaud - 10-29-2018, 03:16 PM
RE: 40-200 Push Buttons - by Radioroslyn - 10-29-2018, 05:07 PM
RE: 40-200 Push Buttons - by drrenaud - 10-30-2018, 07:53 AM
RE: 40-200 Push Buttons - by Radioroslyn - 10-30-2018, 09:37 AM
RE: 40-200 Push Buttons - by drrenaud - 10-30-2018, 03:57 PM
RE: 40-200 Push Buttons - by jcassity - 10-31-2018, 09:25 AM
RE: 40-200 Push Buttons - by Radioroslyn - 10-31-2018, 10:25 AM
RE: 40-200 Push Buttons - by Arran - 11-01-2018, 04:14 AM



Users browsing this thread: 3 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 6501 online users. [Complete List]
» 5 Member(s) | 6496 Guest(s)
AvatarAvatarAvatarAvatar
Avatar

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