ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
290S2Z is listed in the Power Transformers range at ChipApex. The manufacturer field lists Hammond Manufacturing. Its product description is PWR XFMR 117V 60HZ. Review the specifications below when checking this part for your BOM.
Power Transformers specifications for 290S2Z
- Description：PWR XFMR 117V 60HZ
- Series：*
- Mfr：Hammond Manufacturing
- Package：Case
- Type：-
- Voltage - Primary：-
- Voltage - Secondary (Full Load)：-
- Current - Output (Max)：-
- Primary Winding(s)：-
- Secondary Winding(s)：-
- Center Tap：-
- Power - Max：-
- Mounting Type：-
- Termination Style：-
- Size / Dimension：-
- Height - Seated (Max)：-
- Voltage - Isolation：-
- Weight：-
Power Transformers datasheet and documents for 290S2Z
Power Transformers Overview
The Hammond Manufacturing 290S2Z is a bobbin core power transformer designed for tube audio applications. It features a single primary winding rated for 117 VAC at 60 Hz. The secondary configuration includes a 780 VAC center-tapped high-voltage winding with a current rating of 400 mA, a 55 VAC winding for bias supply, and dual secondaries providing 6.3 VAC at 8 A and 5 VAC at 4 A. This component serves as a direct replacement for original equipment in specific vintage-style amplifier designs.
Power Transformers Feature Summary
- Bobbin core construction for reliable performance in tube circuits
- Multi-winding secondary design supporting high voltage, bias, and filament loads
- Engineered specifically for compatibility with Fender Sunn 2000 bass head amplifiers
Power Transformers Applications
- Replacement power supply for Fender Sunn 2000 Bass Head
- Restoration of Marshall guitar amplifiers requiring equivalent transformer specifications
- SUNN 2000 series amplifier maintenance and repair
Power Transformers Procurement Notes
Verify the input voltage requirement matches your regional standard (117 VAC) before installation. Confirm that the physical mounting dimensions and wire lead lengths are compatible with the target chassis. Ensure the replacement unit is sourced from authorized distributors to guarantee adherence to Hammond Manufacturing's quality standards and safety certifications.
Power Transformers Selection Notes
Select this model only when replacing transformers in amplifiers explicitly requiring the 780 VAC CT @ 400 mA specification. The inclusion of dedicated bias and multiple filament windings makes it suitable for complex tube rectifier circuits. Do not substitute with generic industrial transformers lacking the specific audio-grade winding configurations.
Power Transformers Part Context
This transformer belongs to Hammond Manufacturing's specialized line of audio power transformers. It is distinct from general-purpose industrial models by its precise voltage taps tailored for vacuum tube operation. The 290 series is recognized for its use in high-fidelity and professional audio equipment restoration.
Power Transformers Replacement Considerations
Officially documented as a replacement for Fender Sunn 2000 Bass Head units. Verify compatibility with Marshall amplifiers based on matching electrical parameters rather than assuming universal fit across all tube amps.
Explore related parts through Transformers, all product categories, ChipApex homepage.
