Hammond Manufacturing Company Inc. Datasheets for Audio Transformers

Audio transformers improve sound quality by removing interference from audio signals.
Audio Transformers: Learn more

Product Name Notes
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812
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832
834
835
841
842
844
Features Perfect for audio input, line matching, isolation or output transformer applications. 150 milliwatt (+/- 1.5 db, 300 Hz. - 50 KHz.) Epoxy potted in an attractive black molded case,...
Features Perfect for audio input, line matching, isolation or output transformer applications. 2 watt (+/- 1.5 db, 300Hz. - 50 KHz.). Epoxy potted in an attractive black molded case, Pin...
Features Perfect for audio input, line matching, isolation or output transformer applications. 500 milliwatt (+/- 1.5 db, 300 Hz. - 50 KHz.). Epoxy potted in an attractive black molded case,...
Features "Over designed" for high fidelity, single ended, Class-A, tube output circuits (triode, tetrode or pentode tubes). Enclosed (shielded), four slot, chassis Type "X" mounting. Frequency response at least 20...
Features Applications: Driver, Input, Interstage, Isolation 100mW power level at 200Hz. - 15kHz Pin type (0.0375" x .02"), P.C. board mount. Economical, open type construction. Frequency response 200 Hz. -...
Features Couple 3.2, 8 or 16 ohm speakers to 25 or 70 volt line outputs of amplifiers. Up to 5 power tap levels available (except 117F2 which has 4). Primary...
Features Deep-drawn steel case with tin plated finish, with two convenient 6-32 mounting studs with hardware. Includes wire leads (minimum length of 4"). Frequency response +/- 0.5 db max. from...
Features Deep-drawn steel case with tin plated finish, with two convenient 6-32 mounting studs with mounting hardware. Sealed case and wax potted core internally for stable characteristics and long life.
Features Designed for driver use ONLY in single ended tube output amplifiers. These units replace coupling capacitor circuits for improved sound. Closed style with minimum 8" long leads. All models...
Features Designed for drop in replacement of original units. Physically, parts were designed to look similar to original factory units (where possible). Material used & design specs. were kept as...
Features Designed for general purpose or replacement use (not Hi-Fi), in single ended, tube output circuits. Frequency response: 100 Hz. - 15 Khz at full rated power (+/- 1db max.
Features Designed for general purpose or replacement use in push-pull or phase inverter tube driver circuits. Should not be used for single ended applications. They have no gap for DC...
Features Designed for general purpose or replacement use in push-pull tube output circuits. For single ended use, see our 125SE Series. Frequency response: 150 Hz. - 15 Khz at full...
Features Designed for general purpose or replacement use in push-pull tube output circuits. Frequency response: 150 Hz. - 15 Khz (+/- 1db max. ref. 1 Khz) Open style with minimum...
Features Designed for push-pull tube output circuits. A perfect match to our 300P potted power transformers. Enclosed in a drawn steel case, the transformer is completely potted in epoxy. Frequency...
Features Designed with Nickel alloy cores for high performance and Wide Bandwidth Frequency Response: 20 Hz – 20 kHz ±0.35 dB, (ref. @ 1 kHz) Low distortion at levels up...
Features NEW & improved version of our 1608-1650 Series multiple secondary output transformers (re-designed secondaries for easy hook-up of secondary loads). Designed for push-pull tube output circuits. Units are designed...
Features Output power models from 5 to 1,500 milliwatt level available. P.C. board mount - square pin type (0.025" square typical) - see mechanical information below for lengths. Bifilar winding...
Features Output power models from 5 to 1,500 milliwatt level available. P.C. board mount - square pin type (0.025" square typical) Bifilar winding technique used on center tapped units for...
Features Pin type (0.25" length & 0.025" square), P.C. board mount. Economical, open type, horizontal bracket construction. 149 Series includes clinching lugs for extra mounting strength. Frequency response 200 Hz.
Features Pin type (0.25" length & 0.025" square), P.C. board mount. Economical, open type, horizontal bracket construction. Includes clinching lugs for extra mounting strength. Frequency response 200 Hz. - 15...
Features Pin type (0.25" length & 0.035" diameter), P.C. board mount Low profile, open type construction Frequency response 200 Hz. - 50 Khz. (+/- 1 db, ref. @ 1 Khz.)...
Features Pin type, miniature size, P.C. board mount, net weight of only 0.1 oz. Rugged potted construction produces a completely sealed unit withstanding severe environmental conditions. Secondary may be used...
Features Please see our NEW & improved versions (easy wire secondary series). Designed for push-pull tube output circuits. Enclosed (shielded), 4 slot, above chassis Type "X" mounting. Frequency response 30...
Features Rugged black epoxy potted case with 9 pin connections (.025" square by 0.5" long). Frequency response minimum @ 0 dbm +/- 1 db max. (+/- 0.5 db is typical)...
Features Small, economical, open, two hole horizontal bracket mount. Insulated, color coded flexible leads, 4" long minimum (143, 144 & 145 Series) or 3" long minimum (146 Series). For a...
Features Studio grade frequency response: 20 Hz. - 20 Khz. (+/- 1 db, ref. @ 1 Khz.) minimum (see individual PDF data sheets below). Excellent frequency response utilizing a 80%...
Features Suitable for driving from solid state amplifiers where isolated windings are not required or can be used with our "Classic" 1600 tube output transformers to provide a 25V or...
In response to requests from RCA Radiola III-A collectors we developed a replacement audio transformer about 20 years ago. The original transformers are usually found with "open" windings due to...
In response to requests from the "Collins Collectors Association" we developed a high quality, matching audio transformer for older equipment with 600 ohm audio output, driving modern low impedance speakers.