High Voltage (Plate) & Filament (300 Series) - Hammond Mfg. Quality Products. Service Excellence. High Voltage (Plate) & Filament 300 Series Universal Primary & 50/60 Hz Operation

2022-09-20

●Features
■Primary: Universal - 100, 110, 120, 200, 220,230, 240 VAC 50/60 Hz.
▲NOTE: units are designed to operate with BOTH primary windings engaged.
▲See primary wiring information under resources.
■Bias Tap: 50 VAC tap from high voltage secondary C.T. (except part number 379WX - uses a separate 60VAC 0.2 Amp winding).
■Highpot tested: 2,000 VAC
■Faraday Copper Primary Shield: Our electrostatic shield reduces the capacitive coupling from the primary - greatly attenuating higher frequency current coupling to the secondaries (shield is internally grounded to the end bell).
■Windings: Concentric wound for low stray field and low noise.
■Models: This series is an upgrade from our entire 200 Series range of units PLUS 2 models designed specifically for 300B tubes (Part Number 300BX) and 2A3 tubes (Part
■Number 302AX).
■Finish: Black powder paint to match our 1650 series of output transformers Units can be run full wave bridge or full wave C.T.
■Conservative designs - CSA certified (209651).
■For a more economical, open frame, universal primary - check out our 260 Series.
■For that "high end" look & feel check out our potted versions - the 300P Series.

HAMMOND

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Filamenttransformers

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7/7/2018

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