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.
290CX is listed in the Power Transformers range at ChipApex. The manufacturer field lists Hammond Manufacturing. Its product description is PWR XFMR LAMINATED CHAS MT. Review the specifications below when checking this part for your BOM.
Power Transformers specifications for 290CX
- Description：PWR XFMR LAMINATED CHAS MT
- Series：290
- Mfr：Hammond Manufacturing
- Package：Box
- Type：Laminated Core
- Voltage - Primary：120V
- Voltage - Secondary (Full Load)：650V, 6.3V, 5V
- Current - Output (Max)：207mA, 4A, 3A
- Primary Winding(s)：Single
- Secondary Winding(s)：Triple
- Center Tap：Yes
- Power - Max：-
- Mounting Type：Chassis Mount
- Termination Style：Wire Leads
- Size / Dimension：79.38mm L x 103.20mm W
- Height - Seated (Max)：96.85mm
- Voltage - Isolation：-
- Weight：6.8 lbs (3.1 kg)
Power Transformers datasheet and documents for 290CX
Power Transformers Overview
The Hammond Manufacturing 290CX is a laminated core power transformer designed for tube application equipment. It features a single primary winding rated at 120V and three secondary windings providing 650V, 6.3V, and 5V outputs. The unit supports maximum currents of 207mA, 4A, and 3A respectively, with a total power rating of 63.1 VA. It utilizes chassis mounting and wire lead termination.
Power Transformers Feature Summary
- Laminated core construction for efficient power transformation in audio applications
- Triple secondary winding configuration supporting high voltage plate supply and low voltage filament heating
- Chassis mount design with wire leads for direct integration into amplifier chassis
Power Transformers Applications
- Tube guitar amplifier power supply replacement
- Vintage audio equipment restoration
- Custom tube-based electronic circuit designs
Power Transformers Procurement Notes
Verify the specific primary voltage requirement (120V) against your local mains supply to ensure compatibility. Confirm that the secondary current ratings meet the thermal and electrical demands of the target tube circuit. Check datasheet specifications for physical dimensions to ensure adequate clearance within the enclosure. Ensure proper insulation standards are met for safety compliance in high-voltage environments.
Power Transformers Selection Notes
Select this model when a 120V primary input is required alongside specific secondary voltages of 650V, 6.3V, and 5V. Compare the 63.1 VA power rating against the total load requirements of the vacuum tubes and associated components. Consider the chassis mount style and wire lead termination for ease of installation in existing or custom-built enclosures.
Power Transformers Part Context
The 290CX belongs to the Hammond 290 series of tube application power transformers. This series is widely recognized for replacing original equipment manufacturer (OEM) transformers in classic guitar amplifiers. The component serves as a critical interface between mains power and the high-voltage DC rectification stage of tube circuits.
Power Transformers Replacement Considerations
- Hammond 290PX
- Hammond 290DEX
Power Transformers FAQ
What is the primary voltage rating for the 290CX?
The primary winding is rated for 120V AC.
Does the 290CX have center-tapped secondaries?
Yes, the 650V secondary winding is center-tapped, while the 6.3V and 5V windings provide standard isolated outputs.
Explore related parts through Transformers, all product categories, ChipApex homepage.
