SINGLE ENDED OUTPUT TRANSFORMERS
Single Ended Guitar Amp Circuits are generally lower power (5 to 20Watt ) units that ring with all the harmonics a guitar and tube can transmit. The SE Output Transformer needs to deal with DC Currents as it conveys an AC signal to your speaker(s). This means you need a relatively large core with a gap in the magnetic field as compared to a Push Pull transformer.
TYPICAL DC CURRENT REQUIREMENTS for VARIOUS VACUUM TUBES:
(Ref Duncan's Amp Page)
| Power Tube | Impedence SE CL-A | DC Current |
| EL84 Family | 5500 Ohms | 48mA |
| 6V6 Family: | 4500 Ohms | 30 - 45mA |
| 6L6 Family | 5500 Ohms | 40 - 54mA |
| EL34 Family | 3000 Ohms | 70 mA |
| KT66 | 2500 Ohms | 85mA |
| KT88 | 3000 Ohms | 90mA+ |
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Current SE Output Transformer Offering:
5W to 8W SE Guitar Amp Output XFMR Circuits: Champ, Bronco, VibroChamp, Valve Jr etc using a single EL84 or 6V6 Power Tube Competitive Xfmrs: $18.95 Direct 8W to 12W SE Guitar Amp Output XFMR Circuits: DIY Upgraded Champ and Valve Jr using 6L6, 5881, KT66 Power Tube Competitive Xfmrs: Direct 10W to 20W SE Guitar Amp Output XFMR Circuits: DIY SE circuits using EL34, KT77, KT88 and parallel 6V6/6L6 Power Tubes Competitive Xfmrs: $35.95 Direct
See Sales and Information page for purchasing details PART NUMBER DESC LIST OT8SE
82Hz to 10KHz, 45mADC
7000 Ohm and 5000 Ohm inputs to 3.2/8/16Ohm Outputs.
Fender125A35A/022905
Hammond 1750C, P-T125BSE
$18.50 @4pcs
$18.00at 8pcs
OEM- EMail for priceOT10SE
82Hz to 10KHz, 60mADC
7000 Ohm and 5000 Ohm inputs to 4/8/16Ohm Outputs
Hammond P-T125CSE, P-T125DSE
Edcor XSE10
$23.50
$23.00 @4pcs
$22.50at 8pcs
OEM- EMail for priceOT20SE
60Hz to 10KHz, 100mADC
3000 Ohm and 2300 Ohm inputs to 4/8/16Ohm Outputs
Hammond P-T125ESE
$34.95 @4pcs
$33.95 at 8pcs
OEM- EMail for price
OVERVIEW: OT8SE
OVERVIEW: OT20SE
WARNING:
IMPORTANT: High Voltage devices, such as these OutputTransformer's operate at lethal voltages and currents and are intended for use only by qualified Electronic Technicians, Tradespeople or Engineer's following sound safety practice.