Apexjr new transformer

[jaudio]

Anybody know anything about this transformer,it is a new item at Apexjr.

What is the current for each secondary?

Is the secondary voltage depend on which primary tap you used?

 

[N-Channel]

is there a link to Apex Jr's website?

 

[1/137]

2 centertapped 28 VAC secondary windings...40 lbs of transformer...there is a nice picture on the web site under the new section....click on the picture there and you will get a larger one...here it is

http://www.apexjr.com/images/bigtranny2.jpg

rt

 

[jaudio]

6 1/2" X 5 1/2" X 8" , Primary 0 - 105V - 115V - 125V, Secondary... Dual 28V - Dual 14V and 0, 60 Amps - 30 Amps each side, WEIGHT 40 lbs each $ 45.00

 

[1/137]

So there is NO confusion...this transformer has dual 28 VAC center tapped secondary windings each rated at 30 amps.

105, 115 and & 125 VAC inputs

rt

 

[jaudio]

6 1/2" X 5 1/2" X 8" , Primary 0 - 105V - 115V - 125V, Secondary... Dual 28V - Dual 14V and 0, 60 Amps - 30 Amps each side, WEIGHT 40 lbs each $ 45.00

Can someone clear this up for me?

How many secondary taps are there on this transformer?

 

[1/137]

There are 2 28 VAC center tapped secondary windings...

There is NOT a set of 28's AND a set of 14's...

What there is ...is 2 28 VAC center tapped windings.

It's clear from the picture...click on the picture for a better view

rt

 

[jaudio]

What is the VA total for both 28volt secondary winding?

 

[1/137]

The spec sheet says 28 VAC @ 30 amp...each winding..

rt

 

[jaudio]

Ok that would be 840va per 28volt winding or 1680 for both 28 windings? If the transformer has the capacitly of 2Kva,the that is 60va per 14volt winding or 120va for both 14volt winding?

 

[1/137]

28 VAC * 30 Amp = 840 VA if we did the multiplication correct...per secondary @ 28 VAC ...

If you attach 120 VAC to the 105 VAC taps you will get a bit more voltage out...

the 2 secondary windings in series will give you 28*2 VAC @ 30 Amps...

This is a VERY nice transformer...

rt

 

[1/137]

14 VAC * 30 Amp = 420 VA/secondary @ 14 VAC

rt

 

[lineup]

good for driving 1 Ohm loudspeakers

28 Volt into 1 Ohm gives 28 Ampere

 

[jaudio]

14 VAC * 30 Amp = 420 VA/secondary @ 14 VAC

rt

With 1680va for the two 28 volt winding,wouldnt 420 VA/secondary @ 14 VAC be past the 2k capacity?

 

[1/137]

The 14 VAC comes from the 28 VAC windings...it's the center tap....you can't pull 30 amps from the 14 VAC taps AND pull 30 amps from the 28 VAC..the 14 VAC winding is really the "lower" half of the 28 VAC winding...

I could be wrong but it seems like if you max out the 28 VAC windings that is all you get.

rt

 

[jaudio]

Thank You

 

[1/137]

I have a photocopy of the vendor spec sheet...it's tough to read...it looks like it says 2 kva...although I don't know how they get that number. I can't imagine needing more capability than this transformer can deliver...assuming the voltage works for you.

Steve is shipping 4 to me via priority mail...@ a little under $10/transformer that's about half of what UPS cost from Southern California to Albuquerque....and I imagine UPS is close to $40 to the East Coast but Priority Mail is still under $10...

rt

 

[zlast]

Apex Jr Transformer

If the secondaries are wired in series will that give you 28-0-28 at 30 amps? Does anyone have a schematic for this transformer and if so can they please post ?

 

[jaudio]

This is one big transformer(excuse the blurring picture). I use video tapes and cds as reference

It should run 20 chip amps with no problem.

 

[EWorkshop1708]

Link to how we can buy these.

After seeing $45.00 for such a large transformer, makes me wish I just didn't buy a 350VA Toroid.