Philco 90 vs 650B

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 90 vs 650B

Ron Ramirez
Silent Key

Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana

10-23-2008, 06:06 PM

Also consider the fact that the Model 90 has Philco's "double tuned input curcuit"; i.e. two tuned circuits ahead of the RF amplifier tube, which is designed to provide sharper selectivity.

--
Ron Ramirez
Ferdinand IN

Find

« Next Oldest | Next Newest »

Thread Closed

Messages In This Thread

Philco 90 vs 650B - by etech - 10-23-2008, 12:45 PM

Re: Philco 90 vs 650B - by Chuck Schwark - 10-23-2008, 01:05 PM

Re: Philco 90 vs 650B - by etech - 10-23-2008, 03:59 PM

Re: Philco 90 vs 650B - by Chuck Schwark - 10-23-2008, 04:36 PM

Re: Philco 90 vs 650B - by Ron Ramirez - 10-23-2008, 06:06 PM

Re: Philco 90 vs 650B - by etech - 10-23-2008, 06:16 PM

Re: Philco 90 vs 650B - by BDM - 10-24-2008, 11:20 AM

Re: Philco 90 vs 650B - by Chuck Schwark - 10-24-2008, 12:13 PM

Re: Philco 90 vs 650B - by BDM - 10-24-2008, 12:49 PM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
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
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting. IF alignment went great, almost all was already spot-on. Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project. O...glyphmon — 11:07 PM

Who's Online

There are currently 3429 online users. [Complete List]
» 5 Member(s) | 3424 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me