Hammond Manufacturing High Voltage Power Transformers – General Amp Use

Hammond Manufacturing High Voltage Power Transformers for General Amp Use are available in an expansive range of options and packages, such as open style or enclosed. These transformers offer an overall volt-amps (VA) power rating that ranges from 6VA to 1610VA. The 200 Series offers a 115V/125V primary voltage rating (60Hz only) in an enclosed chassis-mount package with 6″ (minimum) long leads. The 261-262 Series features a 115V primary in a cost-effective chassis-mount design and is suitable for small power or bias supplies, test equipment, preamps, and more. The 700 Series has a 115V or 117/234V primary and is available in an enclosed chassis-mount design with 6″ (minimum) long leads.

The 260 Series, 300 Series, and 300P Series all include a Faraday shield, universal primary, and 50Hz/60Hz operation. The 260 Series features a cost-effective open-frame design ideal for preamps, low-power amps, general replacement, and test equipment. The 300 Series is concentric wound for low stray field and low noise and is designed to operate with both primary windings engaged. The 300P Series is completely potted in epoxy and enclosed in a drawn steel case. The 300P transformer is also concentric wound for low stray field and low noise.

Hammond Manufacturing High Voltage Power Transformers for General Amp Use include varieties that can be run full wave bridge or full wave center-tapped (CT).

Features

200 Series
- High voltage (plate) and filament
- 32VA to 454VA
- 115V/125V primary (60Hz only)
- Enclosed, 4 hole, chassis mount
- Minimum 6″ long leads
- Can be run full wave bridge or full wave CT
- Class A insulation (+105°C)
- Hipot test of 2000V_RMS
- Conservative designs – CSA certified (209651)
261-262 Series
- Plate and filament or bias
- 6VA to 83VA
- 115V primary
- Designed for small power or bias supplies, test equipment, preamps, and more
- 261C6, 261D6, 261E6, and 261G6 can be used with full wave CT rectifiers
- Cost-effective, 2-hole channel bracket, chassis mount
- Minimum 5″ long leads
- Convenient 6.3V or 12.6V filament/auxiliary winding
700 Series
- High voltage (plate)
- 259VA to 1610VA
- 115V or 117/234V primary
- At 2000V_AC and above, secondary leads are through rubber bushings
- Can be run full wave bridge or full wave CT
- Enclosed, 4-hole chassis mount
- Minimum 6″ long leads
- Class A insulation (+105°C)
- Hipot test at a minimum of twice secondary voltage
- Conservative designs – CSA certified (209651)
260 Series
- Plate and filament
- 22VA to 248VA
- Universal primary and 50Hz/60Hz operation
- Designed for preamps, low-power amps, general replacement, test equipment, and more
- Cost-effective open frame, chassis mount, 2-hole channel bracket, or 4-hole mounting
- Minimum 5″ long leads
- Includes Faraday shield between primary and secondary windings

300 Series
- High voltage (plate) and filament
- 39VA to 940VA
- Universal primary and 50Hz/60Hz operation
- Designed to operate with both primary windings engaged
- Bias tap: 50V_AC tap from high voltage secondary CT (except 379WX uses a separate 60V_AC 0.2A winding)
- Highpot tested at 2000V_AC
- Faraday Copper Primary Shield reduces capacitive coupling from primary, greatly attenuating higher frequency current coupling to the secondaries (shield is internally grounded to the end bell)
- Concentric wound for low stray field and low noise
- Black powder paint finish
- Can be run full wave bridge or full wave CT
- Conservative designs – CSA certified (209651)
300P Series
- Potted high voltage (plate) and filament
- 40VA to 243VA
- Universal primary and 50Hz/60Hz operation
- Enclosed in a drawn steel case, completely potted in epoxy
- Mounting hardware included
- Bias tap: 50V_AC tap from high voltage secondary CT
- Highpot tested at 2000V_AC
- Faraday Copper Primary Shield reduces capacitive coupling from primary, greatly attenuating higher frequency current coupling to the secondaries (shield is internally grounded to the end bell)
- Concentric wound for low stray field and low noise
- Black powder paint finish
- Can be run full wave bridge or full wave CT
- cULus recognized (E207860)

Hammond Manufacturing High Voltage Power Transformers – General Amp Use

Features

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