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

Thread Closed

smoke escaping from resistors
#7

(03-12-2012, 10:33 AM)Chuck Schwark Wrote:  I will add one more thing. Could not having the speaker output plugged into the chassis be causing my issues by overloading the rest of the circuitry? I could try plugging it in and powering up later, just thought I would throw it out there.

A radio with an EM speaker should always stay connected to chassis when out of the cabinet, as the field coil ( in your Model 18 ) does double-duty as the second power supply filter choke, as well as the "magnet" for the speaker.

If disconnected, the power supply rectifier and the filter caps can see excessive over voltages, or any resistors and other components, depending on the circuit design.

Chuck

I knew there had to be a piece of this story that was missing. Never turn your set on without the speaker plugged in. As Chuck sez you can really screw up your power supply and other stuff too!!!
Terry


Messages In This Thread
smoke escaping from resistors - by raydog - 03-10-2012, 05:13 PM
RE: smoke escaping from resistors - by rghines1 - 03-10-2012, 07:56 PM
RE: smoke escaping from resistors - by Arran - 03-10-2012, 08:21 PM
RE: smoke escaping from resistors - by raydog - 03-11-2012, 03:33 PM
RE: smoke escaping from resistors - by raydog - 03-12-2012, 08:32 AM
RE: smoke escaping from resistors - by 7estatdef - 03-12-2012, 04:42 PM
RE: smoke escaping from resistors - by rghines1 - 03-12-2012, 05:24 PM
RE: smoke escaping from resistors - by Arran - 03-13-2012, 06:54 PM
RE: smoke escaping from resistors - by codefox1 - 03-12-2012, 04:50 PM
RE: smoke escaping from resistors - by raydog - 03-12-2012, 07:13 PM
RE: smoke escaping from resistors - by raydog - 03-14-2012, 07:39 PM
RE: smoke escaping from resistors - by morzh - 03-17-2012, 06:41 PM
RE: smoke escaping from resistors - by Arran - 03-17-2012, 10:36 PM
RE: smoke escaping from resistors - by raydog - 03-18-2012, 10:20 AM
RE: smoke escaping from resistors - by morzh - 03-18-2012, 11:20 AM
RE: smoke escaping from resistors - by Arran - 03-19-2012, 12:29 AM
RE: smoke escaping from resistors - by morzh - 03-19-2012, 01:51 PM
RE: smoke escaping from resistors - by raydog - 03-18-2012, 02:55 PM
RE: smoke escaping from resistors - by raydog - 03-20-2012, 01:06 PM
RE: smoke escaping from resistors - by morzh - 03-20-2012, 09:28 PM



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.

>