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

Threaded Mode
PT-41 short on the AM cycle
Chris Drumma
Member
***
Posts: 103
Threads: 48
Joined: Nov 2005
City: Freehold, NY
#1

01-15-2009, 09:07 AM
Recently bought one of these. Why did philco cut the AM band off at around 1600kc? Was there a good reason to do this?

Thanks
Chris
Find
Chuck Schwark
Phorum Expert
*****
Posts: 1,703
Threads: 55
Joined: Sep 2005
City: Evanston, IL
#2

01-15-2009, 11:27 AM
Originally the AM band only went to 1600 kHz. The expanded AM band we have had for a while now is a new allocation, once the old ham band was moved off that area to open for more commercial ventures. I'm sure some one else can give more specific dates.

Chuck
Chuck Schwark,
The Philco Repair Bench
[Image: http://www.philcorepairbench.com/images/philog3tiny.gif]
http://www.philcorepairbench.com
Website Find
BDM
Senior Member
****
Posts: 393
Threads: 40
Joined: Sep 2007
City: St Clair Shores, MI, USA
#3

01-16-2009, 08:03 PM
I don't believe the 160m HAM band has ever been lower than 1800/kc. From 1650 up to 1790/kc was the old police band and also used for LORAN around 1750/kc.
-Brian
If you collect or are interested in antique telephones, please visit Classic Rotary Phones
http://www.classicrotaryphones.com/forum/index.php
Find
« Next Oldest | Next Newest »




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
American Bosch Model 802 auto radio
Hi Arran ,  Thanks for your help with this radio.And especial thanks for letting me know to look it up under United Ame...Antipodal — 04:32 AM
Philco 60 Squealing
Usually a wave trap is for keeping IF signals from entering the antenna and from leaving the antenna. You feed an IF sig...RodB — 09:30 PM
Philco 60 Squealing
I just peaked it for the best signal at 600. NULL it for IF frequency, originally it would have been null for 500kh...Chas — 08:05 PM
Philco 60 Squealing
Wavetrap no longer matters.morzh — 05:19 PM
Philco 60 Squealing
Rod, I had checked out your suggestions but did not help. I did solder the ground rivets to the chassis as Chas suggeste...dconant — 04:52 PM
37-690 Bass Choke Replacement
Yeah, I know, Mouser and Digikey don't have "big iron" components. For some reason Philco was messing with the...Radiodial — 04:25 PM
37-690 Bass Choke Replacement
Yes, I just had to deal with that while repairing the 37-604 Philco. Exactly that value choke was gone. And the current ...morzh — 03:52 PM
37-690 Bass Choke Replacement
Ah, now where to find one. I've into this before on smaller sets, I now recall. Hammond makes one that is only rated...Radiodial — 03:27 PM
Philco 38-7 Speaker
Ask the admins to put them together. As for the renaming, while inside the thread, you simply press "New reply&quo...morzh — 02:23 PM
37-690 Bass Choke Replacement
This is the parts catalog. 32-7528 choke is 65H, 10mA, 2,250 Ohm inductance. Find a suitable one.morzh — 02:18 PM

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

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Home Radios