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

Thread Closed

Rebuilt 46 Philco dead after one hour!
#5

I don't think so, I think something caused that fuse to blow. At 1.75 amps, that fuse is a bit overkill for your set. Here's why:

At 115 volts, it was rated to consume 100 watts (1946 specifications from service manual).

I = P / E , where I = amps, P = power in watts, E = volts.

I = 100/115 = 0.87 amp.

Add a little more since today's line voltage is on the order of 125 volts in most areas, and your set probably draws close to 1 amp of current.

A 1-1/2 amp fuse should be plenty under normal conditions.

Make that repairman replace any paper and electrolytic caps that have not been replaced yet! Running an old radio with 65 year old capacitors is just asking for trouble. They WILL fail, sooner rather than later.

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Re: Rebuilt 46 Philco dead after one hour! - by Ron Ramirez - 02-08-2011, 08:44 AM



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 3138 online users. [Complete List]
» 1 Member(s) | 3137 Guest(s)
Avatar

>