Transformers & Chokes

Choke - 0.17 - 250, Heavy Duty Hash Choke
Molded powdered iron core.
1-1/4 long axial leads.
High inductance & high current.
L measured at 1 Khz. Inductance: 250 µH20% tolerance
DC resistance ohms: .17
Self Resonant Frequency (MHz): 1.5
Maximum DC current amps: 2.5
Coil diameter (in): .43
Core Length (in): 1.25
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Transformer - Hammond, Radiola III-A Replacement Audio
Developed in response to requests from RCA Radiola III-A collectors. The original transformers are usually found with open" windings due to the fine wire and high turns usedcoupled with age. This is a universal replacement type - it will replace any of the three audio transformers used (1st audio driver2nd audio-phase splitter stage or output transformer)by correctly connectiong the 5 lugs. A pin out and connection diagram is included. The cases from the old transformer will fit this new unit. The terminal board is a duplicate of the original.
Key Features
  • Primary: 4000 turns, #41 wire (lugs 4 & 2)
  • Secondary: 12000 turns C.T., #41 wire (lugs 5 & 1lug 3 is C.T. connection)
  • Termination: Solder lugs on a 1 3/4" x 1" terminal board with 4-5" connecting leads
  • Size: 1-7/8" long x 1-11/16" wide x 1-3/8" deep
  • Lamination Core Size: 5/8" x 1/2"
  • Weight: 7 oz.
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Transformer - Hammond, Audio Interstage, 5 Watt
  • 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 bias current present in SE mode.
  • Open style with minimum 5" long primary leads.
  • Minimum frequency response 150 Hz. - 15 Khz (+/- 1db max. ref. 1 Khz.) at full rated power.
  • Core material is Grain Oriented Silicon Steel.
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Transformer - Hammond, Line Input Transformers
Studio Grade Impedance Matching, 1140 Series. ​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 to +27 dBu @ 20 Hz. Excellent Shielding – Mu Metal enclosures
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Transformer - Hammond, Output, 8 W, 10k Primary
Specifications Audio Watts: 8 watts Primary Impendance (Ohms): 10K center-tapped Secondary Impendance (Ohms): 2/4/8 Mounting centers: 2-3/8u-bracket Weight: 1.0 lbs. Cat. No. Dimensions (Inches) A B C D G Mtg. Hole 125H 2.81 1.4 1.7 2.36 0.187
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Transformer - Hammond, 146 Series, Audio Chassis Mount
Special Order Item
Features:
  • Small, economical, open, two hole horizontal bracket mount.
  • Insulated, color coded flexible leads, 3" long minimum
  • Frequency response 150 Hz. to 15 Khz. (+/- 1 db, reference 1000 Hz.)
  • When operating at impedances below nominal, power capability and the frequency spectrum are proportionately lower, conversely, at higher impedances power capability and frequency spectrum will be proportionately higher.
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Transformer - Fender®, Power, Hot Rod Deville
Fender Original Hot Rod DeVille Power Transformer. Equivalent to #041752.
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Choke - One Electron, Audio, PRC-3, 225H for Preamp Output
The PRC-3 audio choke from One Electron was designed as a plate load for the output of either a high quality line amplifier or a phono preamp.
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Transformer - Hammond, Toroidal Power, 18V / 36V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 36 V series, 18 V parallel secondary.
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Transformer - Hammond, Isolation / plug & receptacle
  • 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 breaker in primary.
  • Standard 3-wire, grounded plug & receptacle.
  • Input (primary) connected to 5 foot long cord & standard North American plug (NEMA 5-15P).
  • Output (secondary) connected to 1 foot long "pig tail" cord, 3-wire, standard North American grounded receptacle (NEMA 5-15R).
  • North American Mark of Safety - C UL & UL listed (File #E211544)
  • Indoor use only
  • Remember - These units do NOT convert line frequency
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Transformer - Hammond, Global Use, Dual Primary 115/230 VAC
  • Dual primary 115/230 VAC
  • 50/60 Hz. operation
  • Dual secondaries for series or parallel connections
  • 4,000 V RMS Hipot test
  • Class F insulation (155 degrees, C)
  • Chassis mount
  • Dual bobbin construction
  • Dual use terminals
  • C UL US recognized (E207860)
  • TUV Type Approved
  • CE certified to IEC 950 (Approved to EN 60-742 Safety Isolating Transformers)
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Transformer - Hammond, High Voltage Plate & Filament, Horizontal mount
  • Horizontal mount. For Vertical Mount, see P-T263-X
  • Primary 117 VAC, 50/60 Hz. - except as noted
  • Enclosed, 4 hole, chassis mount.
  • Minimum 6" long leads.
  • Units can be run full wave bridge or full wave C.T.
  • Class A insulation (105 degrees C).
  • Hi-Pot test of 2,000V RMS.
  • Conservative designs - CSA certified (209651).
  • For Vertical Mount, see P-T263-X
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Transformer - Hammond, Audio Broadcast Quality, 800A Series
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 50 Hz. to 15 Khz. Insertion loss of apx. 1 db. Maximum power level +15 dbm. (except 841A, 842A & 844A which are +20 dbm) with specified characteristics, or higher levels with reduced low frequency performance.
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Choke - Hammond, Replacement for Vox AC30 vintage
Replacement for Vox AC30 vintage


Inductance ± 15%
30 H


D.C. Current
100 mA


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 & design specs. were kept as close as possible to the original part to preserve the stock "tone".
  • Units are vacuum impregnated with polyurethane varnish for quiet and long life operation.
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Choke - One Electron, Audio, PRC-2, for Shunt Feed SE Output
The PRC-2 audio choke from One Electron was designed for shunt-feed single-ended output applications, but is also useful where quality inductive loads are needed or as high-quality filter chokes.
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Transformer - Hammond, Low Voltage / Filament, Open, 50 VCT
  • Open style, chassis mount transformers with a 115V 60Hz primary and a 50V center tapped secondary.
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Transformer - Hammond, Output, replacement for Vox
  • Replacements for Vox Amps
  • 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 close as possible to the original part to preserve the stock "tone".
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Transformer - Fender®, Output, 50 W, 2 Ω
Fender® Original '59 Bassman Reissue output transformer. Equivalent to #036485.
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Transformer - Hammond, Microphone Input Transformers
Studio Grade Impedance Matching, 1140 Series. ​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 to +27 dBu @ 20 Hz. Excellent Shielding – Mu Metal enclosures
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Transformer - Hammond, Audio Interstage, 12 Watt
Developed in response to requests from the Collins Collectors Association"this is a matching audio transformer for older equipment with 600 ohm audio outputdriving modern speakers. Or for "classic" high impedance speakers used with newer equipmentsimply swap primary for secondary (ie...4 or 8 ohm input and 600 ohms out). Key Features Isolation unit: (i.e.
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Transformer - Hammond, Power, 350-0-350V, 70-90 mA
Custom manufactured to replace most 6 and 7 tube sets of the early 1930s. Supplied with vertical mounting shells. Provides a seperate filament winding for audio output stages. Specifications Rating: 350-0-350 V, 70 or 90 mA (if 5 V winding is used with 2 A rectifier) Windings: 5 V, 3 A; 2.5 V, 7.5 A; 2.5 VCT, 3.5 A Mounting Centers:2 x 2.625" Weight: 4.2 lbs. Overall Height: 3.12"
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Choke - Hammond, replacement for Vox TB35C2
16H @ 40 mA guitar amplifier replacement for Vox TB35C2 Tony Bruno. 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 preserve the stock "tone".
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Transformer - Hammond, Toroidal Power, 22V / 44V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 44 V series, 22 V parallel secondary.
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Transformer - Hammond, Low Voltage / Filament, Open, 10 VCT
  • Open style, chassis mount transformers with a 115V 60Hz primary and a 10V center tapped secondary
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