Philco 40-150 Frequency shift

Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Linear Mode

Philco 40-150 Frequency shift

planigan
Member

Posts: 119
Threads: 5
Joined: Mar 2006
City: Coram, N.Y. 11727

03-10-2008, 01:01 AM

Raliegh, it sounds like your on the right track. Since its a sudden shift, not a drift, I would think it's mechanical and may also be heat related since it resolves itself if radio of for a while. The only other thing I can think of is a tube shorting/opening when it heats up. Try substituting tubes in RF curcuit and replacing grommets. PL

Find

« Next Oldest | Next Newest »

Thread Closed

Messages In This Thread

Philco 40-150 Frequency shift - by Raleigh - 03-09-2008, 06:25 PM

[No subject] - by planigan - 03-10-2008, 01:01 AM

[No subject] - by Raleigh - 03-11-2008, 04:16 PM

[No subject] - by TonyJSenior - 03-11-2008, 05:23 PM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
That looks a lot like an aircraft connector of some kind, even if it's a U.S.N power supply. I have a book somewhere abo...Arran — 02:56 AM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
hello david, I have a similar generator in my collection that features a cast iron, single-cylinder Briggs & Stratt...radiorich — 01:00 AM
under chassis parts locator diagram for 1938 Zenith 9s262
Has anyone gone to the trouble of creating an under chassis parts locator image? Yes, I can identify components by foll...bobloney — 08:57 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Try looking at this site the book mark is for a old generator that I was given. David https://radionerds.com/index.ph...David — 08:36 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Hello Everyone, I am looking for voltage identification for all the pin positions on the socket of a CRV-20130 power su...Tonym4704 — 08:16 PM
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello, I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM

Who's Online
There are currently no members online.

Login
Username:
Password:	Lost Password?
	Remember me