Hammond PWDP13054 Drake L4B/L7 Supply Transformer, 1170 VAC
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224-955-1644Key Features
- Supply transformer for Drake L4B-7-SP and L7 power supplies
- 1170/878 VAC @ 0.81A CCS secondary
- 120/240 VAC 60 Hz primary with HI-LO taps, 7-terminal
- Requires power supply and RF amp modifications
- EI-212 X 3 core, Style 2
- Approx. 29 lbs; REACH and RoHS compliant
PWDP13054 is a power supply transformer for the Drake L4B-7-SP and L7 power supplies, with a 1170 VAC secondary and a 7-terminal primary. It is part of the Peter W Dahl Transformers series and is aimed at owners of Drake L4B and L7 equipment.
Important: the listing notes that this transformer requires power supply and RF amplifier modifications, so plan for those changes before installing it.
The primary is rated 120/240 VAC at 60 Hz, single phase, with HI-LO taps. The secondary is rated 1170/878 VAC at 0.81 A CCS, with the lower 878 VAC setting available through the tap selection.
The transformer is built on an EI-212 X 3 core and is listed as Style 2 on the series transformer style sheet. Approximate weight is 29 lbs, with a shipping weight of 29 lbs (13.15 kg).
The primary is listed for 60 Hz only, so buyers outside North America should check their supply frequency. PWDP13054 is REACH and RoHS compliant and carries UPC 623980240442 and UNSPSC 39121301. Peter W. Dahl designs are usually built to order one at a time, so confirm availability by phone or e-mail.
Ideal For
- Drake L4B-7-SP power supply rebuild
- Drake L7 power supply transformer
- Amateur radio HV power supply
Overview
| Series | PWDAHL Series (Peter W Dahl Transformers) |
| Description | DRAKE L4B-7-SP and L7 PS 1170 VAC SECONDARY WITH 7 TERMINAL PRI - NOTE: REQUIRES POWER SUPPLY AND RF AMP MODS |
| Part Number | PWDP13054 |
| Product Type | Power Supply Transformer |
| Installation Note | Requires power supply and RF amp mods |
| Short Description | DRAKE L4B-7 SP TRANS |
Dimensions
| Approx. Weight (Series Table) | 29 lbs |
Electrical
| Primary | 120/240 VAC 60 HZ 1PH HI-LO TAPS |
| Secondary | 1170/878 VAC @ 0.81A CCS |
| Primary Terminals | 7 terminal primary |
Identifiers
| UPC | 623980240442 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 29 lbs (13.15 kg) |
Construction & Finish
| Core | EI-212 X 3 |
| Style (Per Series Style Sheet) | 2 |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
Is PWDP13054 a drop-in part?▾
No. The listing notes it requires power supply and RF amplifier modifications.
Which Drake units is it for?▾
The Drake L4B-7-SP and L7 power supplies.
What is the secondary rating?▾
1170/878 VAC @ 0.81A CCS.
What primary voltages does it accept?▾
120/240 VAC 60 Hz single phase with HI-LO taps on a 7-terminal primary.
Is this transformer kept in stock?▾
Transformers in the Peter W. Dahl listing are usually built to order one at a time, and many of the designs are decades old. Confirming availability of PWDP13054 by phone or e-mail before ordering is recommended.
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