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

Thread Closed

emerson 557 ?
#23

Eric, it would be nice to know where your at now. You have static only which you can vary the noise level with the volume control?
What test equipment do you have? A signal generator or a scope or a signal tracer? It would help to check where your RF is being lost.
I suspect if you have static that varies in volume when you increase the volume pot, your audio section is just fine as is your power supply.
You could certainly have problems in the IF section with perhaps SMD or open coils. The only way to tell is to use a signal generator or signal tracer and find out exactly where you are loosing that nice sound. Once you locate where you loosing it, you can address the problem.
Resistance measurements of the coils in the RF, Oscillator and antenna sections would also help.
Jerry

A friend in need is a pest!  Bill Slee ca 1970.


Messages In This Thread
emerson 557 ? - by Eric - 12-10-2013, 01:06 PM
RE: emerson 557 ? - by BrendaAnnD - 12-10-2013, 05:08 PM
RE: emerson 557 ? - by Eric - 12-10-2013, 06:58 PM
RE: emerson 557 ? - by BrendaAnnD - 12-10-2013, 08:46 PM
RE: emerson 557 ? - by morzh - 12-10-2013, 10:12 PM
RE: emerson 557 ? - by Eric - 12-11-2013, 10:28 AM
RE: emerson 557 ? - by morzh - 12-11-2013, 12:36 PM
RE: emerson 557 ? - by Eric - 12-11-2013, 05:04 PM
RE: emerson 557 ? - by jerryhawthorne - 12-11-2013, 05:52 PM
RE: emerson 557 ? - by Eric - 01-08-2014, 03:52 PM
RE: emerson 557 ? - by morzh - 01-08-2014, 04:30 PM
RE: emerson 557 ? - by BrendaAnnD - 01-08-2014, 07:41 PM
RE: emerson 557 ? - by Eric - 01-08-2014, 07:59 PM
RE: emerson 557 ? - by morzh - 01-08-2014, 08:17 PM
RE: emerson 557 ? - by Eric - 01-08-2014, 08:44 PM
RE: emerson 557 ? - by BrendaAnnD - 01-08-2014, 09:29 PM
RE: emerson 557 ? - by Eric - 01-09-2014, 06:31 PM
RE: emerson 557 ? - by hsusmann - 01-09-2014, 07:00 PM
RE: emerson 557 ? - by morzh - 01-09-2014, 07:30 PM
RE: emerson 557 ? - by Eric - 01-09-2014, 08:25 PM
RE: emerson 557 ? - by morzh - 01-09-2014, 09:30 PM
RE: emerson 557 ? - by Eric - 01-10-2014, 03:55 PM
RE: emerson 557 ? - by jerryhawthorne - 01-10-2014, 05:40 PM
RE: emerson 557 ? - by Eric - 01-10-2014, 07:54 PM
RE: emerson 557 ? - by jerryhawthorne - 01-10-2014, 09:55 PM
RE: emerson 557 ? - by Eric - 01-11-2014, 10:21 AM
RE: emerson 557 ? - by jerryhawthorne - 01-11-2014, 02:38 PM
RE: emerson 557 ? - by Eric - 01-11-2014, 07:23 PM
RE: emerson 557 ? - by jerryhawthorne - 01-11-2014, 07:56 PM
RE: emerson 557 ? - by Eric - 01-12-2014, 11:03 AM
RE: emerson 557 ? - by Eric - 02-11-2014, 05:54 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
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

[-]
Who's Online
There are currently 1983 online users. [Complete List]
» 2 Member(s) | 1981 Guest(s)
AvatarAvatar

>