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

Thread Closed

Philco 90 RF Grid Reception?
#3

Hello Codefox. Checked for opens and touched up the lugs with a pencil type soldering iron. Now I have continuity all the way through! However, I tuned to a very weak station with the antenna wire now in the right place, and hardly heard the station. Without touching the volume control, I moved the antenna wire through the circuitry working my way to the RF grid itself. As I did the weak station got louder, and when I got to the RF grid itself, the reception was almost 5X what I got at the proper point in the circuit for the antenna wire. I know it's not the right place to be, but the radio seems to pull in many more weak stations on or near the RF grid, and the volume control still works smoothly and evenly with no big "jumps" or distortion. The purist in me says put the antenna wire in the right place, but the actual reception aspect tells me put it on or nearer to the RF grid. Any further thoughts? Have you come across this yourself?

THANKS!!! Joe


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
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
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM

[-]
Who's Online
There are currently 1694 online users. [Complete List]
» 1 Member(s) | 1693 Guest(s)
Avatar

>