need audio transformer source

1/6/2009 10:34:46 PMdaniel

for a airline 2314a.if you could tell me where to get a replacement output transformer for this set and the values of the transformer it would be greatly appreciated daniel

1/7/2009 2:24:51 AMWarren

:for a airline 2314a.if you could tell me where to get a replacement output transformer for this set and the values of the transformer it would be greatly appreciated daniel

I don't see the model listed here. If you could give a tube line up, and maybe the B+ Voltage and output tube voltage. Any any more information on your old transformer taps ect. It's most likely common, and easy to replace.

1/7/2009 6:09:35 AMdaniel

::for a airline 2314a.if you could tell me where to get a replacement output transformer for this set and the values of the transformer it would be greatly appreciated daniel
:
:I don't see the model listed here. If you could give a tube line up, and maybe the B+ Voltage and output tube voltage. Any any more information on your old transformer taps ect. It's most likely common, and easy to replace

this transformer is used with a 6BQ5 power tube. b+ voltage is 265(on plate).supply voltage is 290 volts. primary on other channel(good) reads 55 ohms dc resistance.secondary reads 1.6 ohms dc resistance .there is 2 wires going in and two coming out.confused about impedence and the values at which new transformers are sold by.any info would be helpful

1/7/2009 6:45:36 AMdaniel

:::for a airline 2314a.if you could tell me where to get a replacement output transformer for this set and the values of the transformer it would be greatly appreciated daniel
::
::I don't see the model listed here. If you could give a tube line up, and maybe the B+ Voltage and output tube voltage. Any any more information on your old transformer taps ect. It's most likely common, and easy to replace
also the numbers on the top of the transformer are 51x220 4
:and 549-6330r
:this transformer is used with a 6BQ5 power tube. b+ voltage is 265(on plate).supply voltage is 290 volts. primary on other channel(good) reads 55 ohms dc resistance.secondary reads 1.6 ohms dc resistance .there is 2 wires going in and two coming out.confused about impedence and the values at which new transformers are sold by.any info would be helpful

1/7/2009 1:43:52 PMWarren

::::for a airline 2314a.if you could tell me where to get a replacement output transformer for this set and the values of the transformer it would be greatly appreciated daniel
:::
:::I don't see the model listed here. If you could give a tube line up, and maybe the B+ Voltage and output tube voltage. Any any more information on your old transformer taps ect. It's most likely common, and easy to replace
:also the numbers on the top of the transformer are 51x220 4
::and 549-6330r
::this transformer is used with a 6BQ5 power tube. b+ voltage is 265(on plate).supply voltage is 290 volts. primary on other channel(good) reads 55 ohms dc resistance.secondary reads 1.6 ohms dc resistance .there is 2 wires going in and two coming out.confused about impedence and the values at which new transformers are sold by.any info would be helpful

http://hammondmfg.com/125SE.htm

1/7/2009 8:40:53 PMdaniel

:::::for a airline 2314a.if you could tell me where to get a replacement output transformer for this set and the values of the transformer it would be greatly appreciated daniel
::::
::::I don't see the model listed here. If you could give a tube line up, and maybe the B+ Voltage and output tube voltage. Any any more information on your old transformer taps ect. It's most likely common, and easy to replace
thank you very much for your help warren.i noticed on that particular transformer it said not for hi fi.my radio is marked as high fi..will this still work?
::also the numbers on the top of the transformer are 51x220 4
:::and 549-6330r
:::this transformer is used with a 6BQ5 power tube. b+ voltage is 265(on plate).supply voltage is 290 volts. primary on other channel(good) reads 55 ohms dc resistance.secondary reads 1.6 ohms dc resistance .there is 2 wires going in and two coming out.confused about impedence and the values at which new transformers are sold by.any info would be helpful
:
:http://hammondmfg.com/125SE.htm
:
:

1/7/2009 8:56:08 PMWarren

::::::for a airline 2314a.if you could tell me where to get a replacement output transformer for this set and the values of the transformer it would be greatly appreciated daniel
:::::
:::::I don't see the model listed here. If you could give a tube line up, and maybe the B+ Voltage and output tube voltage. Any any more information on your old transformer taps ect. It's most likely common, and easy to replace
:thank you very much for your help warren.i noticed on that particular transformer it said not for hi fi.my radio is marked as high fi..will this still work?
:::also the numbers on the top of the transformer are 51x220 4
::::and 549-6330r
::::this transformer is used with a 6BQ5 power tube. b+ voltage is 265(on plate).supply voltage is 290 volts. primary on other channel(good) reads 55 ohms dc resistance.secondary reads 1.6 ohms dc resistance .there is 2 wires going in and two coming out.confused about impedence and the values at which new transformers are sold by.any info would be helpful
::
::http://hammondmfg.com/125SE.htm
::
::

I think the transformer shown is what you need. As far as being "Hi Fi" that's sometime a loose term. A real Hi Fi transformer is expensive, and large. Do call them first, as I'm sure they will help you.

1/8/2009 4:35:41 PMDoug Criner

The DC resistances of a speaker matching xfmr are more or less meaningless. You want to look at the xfmr winding ratio or the listed impedance ratio (which is the square of the winding ratio).

Per the tube data sheet, a 6BQ5 wants to see a load impedance of about 4500 ohms. So with, say, an 8-ohm speaker, the xfmr's impedance ratio would be about 4500/8 = 560 (or a turns ratio of about sqrt 560 = 24).

The maximum rated power output of a 6BQ5 is 5.7W, single ended. The transformer could be rated lower than that, I think.
Doug

::thank you very much for your help warren.i noticed on that particular transformer it said not for hi fi.my radio is marked as high fi..will this still work?
primary on other channel(good) reads 55 ohms dc resistance.secondary reads 1.6 ohms dc resistance .there is 2 wires going in and two coming out.confused about impedence and the values at which new transformers are sold by.any info would be helpful
:::
:::http://hammondmfg.com/125SE.htm
:::
:::
:
:I think the transformer shown is what you need. As far as being "Hi Fi" that's sometime a loose term. A real Hi Fi transformer is expensive, and large. Do call them first, as I'm sure they will help you.

1/8/2009 8:24:04 PMEdd

Assuming that you did catch the schematic and info that I posted for you….

The transformers listed on the attachment are common transformers.

One bad ? you have a mate to compare specs against.. . .with the set being steee-row.

73's de Edd

1/9/2009 3:14:03 PMEdd. . .parte deux

After looking back at your figures given and comparing against the supplied schematic, the primary DC resistance reading
that you gave is multi decades below the schematic specified DCR of 510 ohms.

Can we assume that the other channels transformer is reading more on that order of value ?

I see no HF shunting capacitor across the AF out primary to break down, so that is of no concern in this case.

On SOME units a potential CAUSED transformer failure, is for a unit to have lost connection to a speaker by one having the ext speaker switch in the external position and the volume run up to max and left in that manner for a time. That would leave abnormally high peak to peak voltages being across the output transformers primary and potential arc over and breakdown.
HOW-SOME_EVER in your situation. the speaker switch wiring is such that the external speakes are only added in supplementally with the in set speakers always left as a load on the output transformer. UNLESS the possibility of the speaker switch having a heavy coat of hard black silver oxide develop upon it such that ther is an open ciruit, however usually only one swiping rotary movement will clean the oxide path and get back into silver inter contacting action.

If the secondary was somehow open / unloaded, then , there being good possibility of a primary winding arcover and gradually carbonizing of inter wiring / insulation and a plummeting of the ohmic value of that carbonized mass.

The low Z of the transformers open secondary would then only be damped by the R/C negative feedback series components of 15K and .01 , which would be transparent against loading that low of a secondary Z .

Now,an in depth, complete research of your cryptic numbers, atop that tranfo, the 549 EIA # reveals it to have been supplied from the Midwest Coil & Transformer Co . . .sometimes. . . aka. . . MIDWEC; and its time frame of manufacture, being the 30th week of 1963. . . .with r Richard doing the final QC analysis, and Betty down in pack. . . .shipping out 11 gross of the units, all on that particular weeks manufacturing run.

Standing by. . . .

73's de Edd

1/9/2009 8:03:07 PMPeter G. Balazsy

Edd:
You forgot to mention what size shoes Betty wears.

1/8/2009 11:23:46 PMBill VA

::::::for a airline 2314a.if you could tell me where to get a replacement output transformer for this set and the values of the transformer it would be greatly appreciated daniel
:::::
:::::I don't see the model listed here. If you could give a tube line up, and maybe the B+ Voltage and output tube voltage. Any any more information on your old transformer taps ect. It's most likely common, and easy to replace
:thank you very much for your help warren.i noticed on that particular transformer it said not for hi fi.my radio is marked as high fi..will this still work?
:::also the numbers on the top of the transformer are 51x220 4
::::and 549-6330r
::::this transformer is used with a 6BQ5 power tube. b+ voltage is 265(on plate).supply voltage is 290 volts. primary on other channel(good) reads 55 ohms dc resistance.secondary reads 1.6 ohms dc resistance .there is 2 wires going in and two coming out.confused about impedence and the values at which new transformers are sold by.any info would be helpful
::
::http://hammondmfg.com/125SE.htm
::
::
Daniel, "primary on other channel(good) reads 55 ohms dc resistance.secondary reads 1.6 ohms dc"

55 ohms is not good. If that's the case what's the bad channel output transformer readings? The schematic indicates 510 ohms for the primary on both of these output transformers. I rarely see bad output transformers in this type vintage gear. I do see lot of bad 6BQ5 tubes tho.
Bill

1/8/2009 8:22:03 PMPeter G. Balazsy

Dan:

Go here read this... take your time.. it is EASY to understand.
It's the BEST thing I ever read that takes ALL the mystery out of output impedance!

http://www.radioremembered.org/outimp.htm