Hammond EI 1800VCT 175 mA Core Power Transformer, 120VAC

This listing covers the Peter W. Dahl design shown in the PWDAHL series table as "1800VCT @ 175 MA", Hammond part number PWDP13048, built on an EI core. The PWDAHL series is Hammond's range of magnetics for amateur radio products, taken directly from the Peter W. Dahl files, and suits amateur radio builders and restorers who need a multi-winding power transformer for a vacuum tube project.

The primary is 120VAC, 60 Hz. The secondary provides four windings:

• S1: 1800VAC @ 175 MA
• S2: 560 VAC @ 800 MA
• S3: 5V @ 2A
• S4: 5V @ 4A

Because the primary is listed for 60 Hz only, buyers outside North America should take note: the series guidance says most parts are only listed for 60 Hz usage, and if you need 50 Hz you should make sure the listing says 50/60 Hz.

Peter W. Dahl transformers are usually built to order one at a time, and many of these designs are decades old, so the manufacturer advises confirming availability by phone or e-mail before planning around this part. Use the winding list above to confirm the voltages and currents match the equipment you are building or restoring.