Transformer - Output, 8 W, Single Ended
|Primary Impedance||5,000 Ω single-ended|
|Secondary Impedance||8 Ω|
|Primary DC Resistance (Red to Blue)||230 Ω|
|Item Height||1.606 in.|
|Item Length||2.8 in.|
|Item Width||1.9 in.|
|Mounting Hole Center to Center A||2.35 in.|
|Mounting Hole Diameter||0.187 in.|
|Primary D.C. Resistance, blue-red||230 Ω|
|Primary Impedance||5 kΩ|
|Secondary Impedance||8 Ω|
|Packaging Dimensions||2.8 in. × 1.6 in. × 1.8 in.|
|Weight (Packaging)||0.6592 lbs.|
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Questions and Answers
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3 answers Hi: I want to built an stereo amplifier Hi-Fi with single ended audio transformers, I was searching the store and the frequency response are only 10Khz like for a guitar amp,any audio transformer with a list 40hz to 20Khz? Thanks Alfred
Asked by Anonymous on April 2nd, 2016.
Most of our current transformer stock will be leaning towards guitar amplification. I would suggest checking out the Hammond offerings as those would have the best chance of meeting your needs.
3 answers WILL THIS TRANSFORMER WORK WITH THE 6V6 AUDIO TUBE?
Asked by Anonymous on June 30th, 2016.
By looking at the spec sheet above, this transformer should work with 6V6, 7C5, and 6AQ5/A tubes.
3 answers What is the max DC bias for this OT?
Asked by Anonymous on February 22nd, 2017.
The maximum DC bias depends on the tube being used, the plate voltage, and the value of the cathode resistor.
I think this question was not referring to tube bias, but maximum DC a single-ended transformer was designed for (or is recommended). That is a common spec from transformer manufacturers and should be observed to avoid core saturation. It's much less of a concern for push-pull because it's normally balanced or can be adjusted to be. Thanks
Let's read between the lines, in case there is no published spec (available) from the manufacturer. The transformer is recommended for 6V6, 7C5 and 6BQ5. The 7C5 is the Loctal socket version of 6V6, so let's say there are only two tubes we know are suitable. I found one version of Fender Champ schematic that had a cathode voltage of 19 VDC with a 470 ohms cathode resistor. 19/470 = 0.04A = 40 mA. 2nd example I looked up was for a 6BQ5/EL84 SE amp with 7.7 VDC cathode voltage and a 150 ohm cathode resistor. 7.7/150 = 0.051A = 51 mA. Those may not maximum allowable, but based on the recommended tubes and mostly satisfied users we can assume 51 mA DC is OK.
2 answers What kind of speaker should I use on the P-T31 transformer. I am restoring an old GE E-61 radio and the speaker and transformer are missing. Hoping this transformer will work, but not sure what kind of 8" speaker I need next.
Asked by Anonymous on April 18th, 2016.
Hi: I just finished a full restoration on that same model.The speaker size should be 6 1/2 inches.In order to replace the speaker you should place a 1K 25W resistor as a substitute for the coil that was used to create magnet for the old speaker.The audio output PT-31 will work without any problem
2 answers Hey will this work with an EL34?
1 answers What is the distance between mounting holes?
1 answers How many pins does a 6V6 and 6J5 tube have?
1 answers Will this transformer work with an El84/6BQ5 tube?
1 answers If this transformer isn't for the EL84, what one do you recommend for a single end?
1 answers Is this transformer current production or surplus stock?
1 answers Where are these made?
1 answers What is the primary side inductance of this device?
1 answers would this be a good replacement for a zenith 9s367 with 6f6 single end output----thanks
1 answers If I use this with a 4 ohm load, will the primary impedance be too low for a single 6bq5/el84?
1 answers What would be a good power transformer to go with this?