Crosley 124 amperage draw
Posts: 1,475
Threads: 69
Joined: Nov 2012
City: Kansas city, MO.
I just recapped and changed some out of tolerance resistors on this 124 Crosley. I always bring up on variac with amp scale in line.
Most of the radios I have done read about .5mA on 3amp scale.
This one is reading .85mA seems high to me.
Does anyone know if this would be a normal range for this radio?
I was at 120v on variac setting. It does play pretty well but I turned it off because of high amp reading. Thanks
Posts: 16,266
Threads: 566
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
Does not make sense, normal draw will be in over a hundred mA.
Are you measuring DC or AC amps? And is your ammeter Ok and the fuse inside it good?
Posts: 1,114
Threads: 14
Joined: Feb 2013
City: Irvington, NY
Mike probably means .5A and .85A which would make more sense on the 3A scale.
These readings would seem reasonable, depending on the tube count of the radios involved.
Posts: 1,475
Threads: 69
Joined: Nov 2012
City: Kansas city, MO.
I have a 3amp and 7 amp ac ampere meter guage that is in series with the variac outlet that I plug the radios into. It is wired to the 3amp scale. I might be stating the reading wrong.
When I said .85mA I mean that it is almost at the 1amp on the scale. Most of my other radios read right at .5 half way btwn. 0 and 1 amp.
Posts: 1,475
Threads: 69
Joined: Nov 2012
City: Kansas city, MO.
Mondial you are correct. I was going to take some tube voltage readings but did not want to do this if the current was too high. Back to the books on amperes and how to properly determine. Thanks
Posts: 1,114
Threads: 14
Joined: Feb 2013
City: Irvington, NY
I just looked at the schematic and the Crosley 124 uses a pair of 47's in push pull for the output. This radio will draw more AC current than a radio with a single output tube which you may be comparing it with.
Does the back of the set have a nameplate with the AC power consumption ( Watts rating) ?
Posts: 1,475
Threads: 69
Joined: Nov 2012
City: Kansas city, MO.
There is a plate that has the model number and next to it says 125 watts.
Posts: 1,114
Threads: 14
Joined: Feb 2013
City: Irvington, NY
If the radio is rated at 125 Watts, then the .85A current draw is not a problem. The amp current draw will be proportional to the Watts rating.
A radio rated at 60 Watts might show a .5A reading, but a 125 Watt radio will draw significantly more, close to 1 amp or more.
Posts: 1,475
Threads: 69
Joined: Nov 2012
City: Kansas city, MO.
Thanks Mondial. Going to check tube volts, do an alignment, and let it play awhile.
Posts: 16,266
Threads: 566
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
Let's try to call Amps Amps, Ohms Oms etc.
We are, after all, dealing with electricity and if someone wants to explain something and get help, it pays to be accurate in what one is saying about units.
Posts: 2,128
Threads: 18
Joined: Oct 2008
City: Merrick, Long Island, NY
Watts dat? Other than fusisters, little radios are ok with .5 or .75 amp, mediums 2 amp, and large 3 amps. If you know everything else is OK, you can move up a value if needed.
I've seen modern guitar amps with a 3 amp fuse in the holder on the back of the cabinet, and a 5 amp secondary inside. Sure enough user did the deed and kept upping the back one to keep playing. Fixed it did with a recap job etcetera, for about the same cost as a replacement amp. Wanted it back, he did, so I did as he asked. Mind you I only do favors and never made a nickel on repairs since I was a kid.
Posts: 16,266
Threads: 566
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
3 Amps...yikes. Nice space heater that radio would be....
Posts: 2,128
Threads: 18
Joined: Oct 2008
City: Merrick, Long Island, NY
Yup, humongous ones can do 3 big ones on turn on. Nice in a cold climate where you don't pay seperately for electric.
Posts: 16,266
Threads: 566
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
Turn-on current is the inrush, inductive type at that, won't do anything bad except blowing an improperly sized fast-blow fuse.
It's the steady one that will help you in North Dacota. 
Users browsing this thread: 1 Guest(s)
|
|
Recent Posts
|
|
Philco 91 Restore Code ??
|
| Yes, you can look at the schematic. When the output tube screen grid is connected directly to the plate then it's wired ...RodB — 01:51 PM |
|
Philco 91 Restore Code ??
|
| Can someone tell me if my 42 tubes are connected triode or pentode in fixed or cathode bias? How could I tell by looking...dconant — 10:47 AM |
|
Philco 40-120C Restoration
|
| Hello David,
that is great news about the tubes source being local !
Sounds like you got good start on the radio .
...radiorich — 09:41 AM |
|
An attempt to remove the Field Coil from a G speaker
|
| Mike;
I've only run into a speaker with an open filed coil twice, and they were on newer speakers from the 1940s. One ...Arran — 12:48 AM |
|
An attempt to remove the Field Coil from a G speaker
|
| Arran
Yes, this is my plan for now and what do I got to lose, this is not even the speaker from this radio, but one o...morzh — 10:44 PM |
|
An attempt to remove the Field Coil from a G speaker
|
| Mike;
I would unwrap the field coil, and see if maybe there a break near one of the ends, like where the coil wire att...Arran — 10:23 PM |
|
An attempt to remove the Field Coil from a G speaker
|
| ...and this is what I did. I fed a little LT into the screwholes with a small brush, and a little on the rim next to the...morzh — 09:52 PM |
|
Philco 40-120C Restoration
|
| I combined the two 40-120C threads together as we like to keep the discussion of the same radio together. It helps with...klondike98 — 09:36 PM |
|
Philco 40-120C Weak, Distorted Ouput
|
| Just checked were I buy tubes price is four dollars. So living in Florid we have a local source for tubes. David David — 09:14 PM |
|
Philco 40-120C Weak, Distorted Ouput
|
| The higher voltage may be due to higher mains voltage. My mains run 120-125AC when the set was new mains would be 110-11...David — 09:09 PM |
|
Who's Online
|
There are currently 4403 online users. [Complete List]
» 2 Member(s) | 4401 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
