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

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

116x Restoration
#16

Does anyone know how many amps the 116X should be pulling? The one I am working on is pulling 1.24 amps. I'm wondering if this is high or not.

Thanks

-Keith
#17

Sounds a bit high to me, going by the secondary currents listed on Nostalgia Air. These add up to ~950mA, although some of this difference could be core/hysteresis losses in the transformer.
#18

That puts you right around 100wts.
Terry
#19

Those values are the ratings with the AC line voltage of 115 volts, I believe.

Chuck
#20

Brenda,

What were you looking at when you came up with the 950ma figure? I've been trying to figure out how to determine how many amps/ma's the set should be pulling.

-Keith
#21

Keith,

Will look at the amp/wattage/voltage specs in the 116X Service Bulletin when I get home from work this evening.

Chuck
#22

I looked at the current ratings on the secondary windings on the Rider's schematic, and did the math approximation from those with necessary multiplication and division to bring them to the 110 volt line voltage. It's only the barest approximation in this case, though, because I did not figure in transformer losses and didn't use precise measurements, only ballpark estimates.
#23

According to Service Bulletin No. 222-A (June 1935) for the 116X (Code 122), the power consumption is 135 watts at the rated line voltage of 115 VAC. 135 divided by 115 equals 1.17 amps. W = I x V or I = w / V

Chuck

(Corrected my amps error. Thanks Brenda for the nudge on my Math-zeimers. 5-15-13)
#24

To get a really accurate reading of power consumption, you need a wattmeter which takes into consideration the power factor of the load. A reactive load like a power transformer will draw an inductive current out of phase with the applied voltage. So an additional current will flow, but no additional power will be dissipated because the voltage and current are out of phase. Therefore the indicated current measured by an ammeter will be higher than what you would expect from the wattage rating.

I bought one of these a while back and found it very useful. It measures Volts, Amps and actual Watts, along with Volt-Amperes which is what you get when multiplying AC volts times amps without taking the reactive load power factor into account.

http://www.ebay.com/itm/P3-P4400-Kill-A-...460f2577c9
#25

Thanks everyone!

After dropping the line voltage down to ~108vac with a bucking transformer they set is only pulling just over an amp 1.08A. It seems happy now.

-Keith




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
The list of my radio & TV collection!
Peter; I can't say for certain but many North American made radios from that era, the late 1940s onward, had silver m...Arran — 02:06 AM
Philco 39-7C Restore
A little more work today. I got the first IF transformer back together after replacing the wiring going to the 78 tube ...klondike98 — 12:06 AM
Two small radios from France. Restoration and review.
And here they are, the French beauties ready: In summary, the suspicion that radio transmits the national cha...Vlad95 — 10:46 PM
Two small radios from France. Restoration and review.
One is ready for washing, the other for painting: ATTENTION Faint-hearted and heart patients, please d...Vlad95 — 10:36 PM
Two small radios from France. Restoration and review.
Range Switch Block: I thought that mica capacitors of this type died out in the 30s, but no, they just moved ...Vlad95 — 10:29 PM
Two small radios from France. Restoration and review.
Chassis bottom view: Again, like twins, especially in the range switch part. Front panels: And...Vlad95 — 10:25 PM
Two small radios from France. Restoration and review.
Chassis removed, front view: Chassis rear view: It will be enough for the first device to prescribe a bath. Bu...Vlad95 — 10:11 PM
Two small radios from France. Restoration and review.
France Peculiarities of national character. Excelsior-52 threw me off track. It was too far outside my established...Vlad95 — 10:06 PM
Philco 16b no shortwave reception
First let thank everyone who helped ID this radio a few weeks ago! I have replaced all the capacitors and was able to r...Ken D. — 08:07 PM
Philco model 38 code 121 not receiving signal.
Ah yes, the Philco "Green Death" strikes again, someone suspected that cellulose nitrate based insulation migh...Arran — 06:23 PM

[-]
Who's Online
There are currently no members online.

>