Hammond Manufacturing Company Inc. Datasheets for Electronic Transformers

Electronic transformers are designed especially for low-power applications. They are used in computers, radio frequency (RF) devices, and lighting.
Electronic Transformers: Learn more

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Product Name Notes
Features: Intended for non-patient connected indoor applications where protection of sensitive electronics is required: High end audio / studio use Medical electronics High end test equipment / laboratory cULus Listed...
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 Primary 115VAC, 50/60 Hz., Secondary 115VAC Provides complete circuit isolation. Electrostatic shield between primary & secondary to greatly attenuate surges and noise. Hi-pot tested to 2 KV RMS. Circuit...
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 All models impregnated with a moisture and fungus resistant varnish. Lead length of 1.5" (+/- 0.13") Wound for low distributed capacity by using solenoid (single coil) windings. Includes vinyl...
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 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). Inductances measured at rated D.C. current. Material used...
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 Economical "open bracket" - channel mount. Tolerance of 15% on both inductance & resistance. Inductances measured at rated D.C. current. Minimum 5" long leads. Units will exhibit less inductance...
Features Enclosed, 4-hole mount chokes (some models also available epoxy potted in a black powder paint - drawn steel housing (see chart). Potted models mount with 1/4" - 20 hardware...
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 Open core & coil, 4-slot bracket mounting chokes. Tolerance of 15% on both inductance & resistance. Inductances measured at rated D.C. current. The "195" series is single coil The...
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 Physically, parts were designed to look similar to original factory units (where possible). Material used & design specs were kept as close as possible to the original part to...
Features Physically, parts were designed to look similar to original factory units (where possible). Material used & design specs. were kept as close as possible to the original part to...
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 Primary 115VAC, 50/60 Hz., Secondary 95VAC. Provides circuit isolation. Electrostatic shield between primary & secondary. World wide applications, 50 or 60 Hz. operation, step down (115VAC to 95 VAC).
Features Primary 115VAC, 60 Hz., Secondary 115VAC Electrostatic shield between primary & secondary Connection by flexible leads, 8" minimum length Perfect for circuit isolation or "Classic" bias power supply CSA...
Features Primary 115VAC, 60 Hz. Secondary taps @ 90, 100, 110, 115, 120 & 130VAC Electrostatic shield between primary & secondary Connection by flexible leads, 8" minimum length Perfect for...
Features Primary 120VAC, 50/60 Hz., Secondary 120VAC. Provides circuit isolation. Toroidal transformer for high isolation, low noise, light weight, cool operation and low profile. World wide applications, 50 or 60...
Features Primary 230VAC, 50/60 Hz. Secondary 115VAC Circuit breaker in primary. Provides circuit isolation & steps down primary voltage. Hi-pot tested to 2 KV RMS. Electrostatic shield between primary &
Features Single winding, does not provide isolation, for use where equipment is already isolated and only voltage change is required. Flexible world wide applications, 50 or 60 Hz. operation, 115VAC...
Features Single winding, does not provide isolation, for use where equipment is already isolated and only voltage change is required. Flexible world wide applications, 50 or 60 Hz. operation, step...
Features Single winding, does not provide isolation, for use where equipment is already isolated and only voltage change is required. World wide applications, 50 or 60 Hz. operation, step down...
Features Single winding, does not provide isolation, for use where equipment is already isolated and only voltage change is required. World wide applications, 50 or 60 Hz. operation, step up...
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...
Features Traynor BassMaster YBA-1* 45 Watts Physically, parts were designed to look similar to original factory units (where possible). Material used & design specs. were kept as close as possible...
Features Traynor YBA-4*, 50 Watt Physically, parts were designed to look similar to original factory units (where possible). Material used & design specs. were kept as close as possible to...
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.

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