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290VEX is listed in the Power Transformers range at ChipApex. The manufacturer field lists Hammond Manufacturing. Its product description is POWER TRANSFORMER, REPLACEMENT F. Review the specifications below when checking this part for your BOM.
Power Transformers specifications for 290VEX
- Description：POWER TRANSFORMER, REPLACEMENT F
- Series：290
- Mfr：Hammond Manufacturing
- Package：Bulk
- Type：-
- Voltage - Primary：-
- Voltage - Secondary (Full Load)：-
- Current - Output (Max)：-
- Primary Winding(s)：Single
- Secondary Winding(s)：Single
- Center Tap：Yes
- Power - Max：-
- Mounting Type：Chassis Mount
- Termination Style：Wire Leads
- Size / Dimension：-
- Height - Seated (Max)：-
- Voltage - Isolation：-
- Weight：-
Power Transformers datasheet and documents for 290VEX
Power Transformers Overview
The Hammond Manufacturing 290VEX is a laminated core power transformer designed for tube guitar amplifiers. It features a single primary winding rated for 240 VAC input at 50/60 Hz. The secondary configuration provides a high voltage output of 650 VAC center-tapped, along with dual low-voltage windings rated at 6.3 VAC and 5.0 VAC. This component utilizes chassis mounting and wire lead termination to facilitate integration into vintage-style audio equipment.
Power Transformers Feature Summary
- Designed specifically as a replacement power transformer for Fender guitar amplifiers within the 290 series
- Features a triple secondary winding configuration to support high voltage plate supply and multiple filament requirements
- Constructed with a laminated core and chassis mount style for stable industrial control applications
Power Transformers Applications
- Replacement power supply for Fender guitar amplifiers
- Tube-based audio amplifier construction
- Vintage reissue musical instrument electronics
Power Transformers Procurement Notes
Verify that the target amplifier circuit requires a 240 VAC primary input before installation, as this model differs from standard 120 VAC variants. Confirm that the physical chassis dimensions accommodate the specific footprint of the 290VEX unit. Ensure that the wire lead connections match the existing harness specifications of the equipment being serviced or built.
Power Transformers Selection Notes
Select the 290VEX when the application specifically requires a 240 VAC primary voltage rating, distinguishing it from the 290TX which operates on 120 VAC. Consider this model for projects requiring a direct drop-in replacement for Fender amplifiers designed for international voltage standards. Evaluate the triple secondary winding layout against the specific tube complement and bias requirements of the target circuit design.
Power Transformers Part Context
This component belongs to the Hammond 290 series, a line of power transformers widely recognized for their use in classic American guitar amplifiers. The series offers various primary and secondary configurations to suit different regional voltage standards and amplifier power levels. The 290VEX represents the variant optimized for 240 VAC regions while maintaining the electrical characteristics required by the original equipment designs.
Power Transformers Replacement Considerations
- 290TX (120 VAC Primary)
- 290DEX (240 VAC Primary, 230 mA Secondary)
Power Transformers FAQ
What is the primary voltage rating for the 290VEX?
The 290VEX is rated for a single primary winding input of 240 VAC.
Does the 290VEX have a center-tapped secondary?
Yes, the high-voltage secondary winding is center-tapped at 650 VAC.
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