Transformers & Chokes

Transformer - Hammond, Toroidal Power, 110V / 220V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 220 V series, 110 V parallel secondary.
Starting at $57.68
Transformer - Hammond, Toroidal Power, 117V / 234V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 234 V series, 117 V parallel secondary.
Starting at $61.85
Transformer - Hammond, Toroidal Power, 18V / 36V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 36 V series, 18 V parallel secondary.
Starting at $57.68
Transformer - Hammond, Toroidal Power, 240V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 240V secondary.
Starting at $61.85
Transformer - Hammond, 144 Series, Audio Chassis Mount
Special Order Item
Features:
  • Small, economical, open, two hole horizontal bracket mount.
  • Insulated, color coded flexible leads, 4" 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.
$24.48
Note: special order items require additional lead time. See our page on special order items.
Transformer - Hammond, Low Voltage / Filament, Open, 30 VCT
  • Primary 115 VAC, 60 Hz.
  • Secondary 30 C.T.
  • Center tapped secondary.
  • Open style, channel bracket, two hole chassis mount.
  • Minimum 6" long leads.
  • Dual bobbin design - no electrostatic shield required.
  • Class B insulation (130 degrees, C).
  • Hi-Pot test of 2,000 V RMS.
  • UL listed (# E50394) & CSA certified (# LR3902).
Starting at $26.35
Note: P-T166E30: 4.5 is a special order item.
Transformer - Hammond, Low Voltage / Filament, Open, 8.5 VCT
Open style, chassis mount transformers with a 115V 60Hz primary and an 8V or 8.5V secondary.
Starting at $28.33
Note:
P-T166G8:4
P-T166J8:8.5
P-T166L8:17
are special order items.
Note: some of these items are special order items.
Transformer - Hammond, Isolation, 115V
  • 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 certified (209651)
  • Remember - These units do NOT convert line frequency
Starting at $76.73
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
Starting at $122.85
Transformer - Hammond, Power, Low voltage, 16V/3A
Specifications:
  • Size: 48 VA
  • Dual Primary: 117 VAC, 234VAC, 50/60 Hz.
  • Secondary VAC RMS Series: 16V @ 3 A
  • Secondary VAC RMS Parallel: 8V @ 6 A

Features:
  • Primary 117/234 VAC, 50/60 Hz.
  • Dual secondaries
  • Secondaries can be used as; a center tapped secondary, parallel connected or used individually
  • Units are designed for use with all windings engaged.
  • Open style.
  • Minimum 6" long leads.
  • Dual bobbin design - no electrostatic shield required.
  • Class B insulation (130 degrees, C) for extra pr
$44.30
Transformer - Hammond, Guitar Amplifier, replacement for Ampeg
  • Replacement for Ampeg amplifiers
  • 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".



Part No.
Primary
Ampeg Model Names
Ampeg Part No
Bobbin/Paper Wound


VAC
Hz.




P-T291GX
120 V
60 Hz.
B25
12XA
Bobbin


P-T290CAZ
117 V
60 Hz.
Gemini VI 25W
PT 113
Bobbin


P-T290ETX
120 V
60 Hz.
Super Echo Twin
PT 109
Bobbin


P-T291HX
110 / 115 / 230 V
50 / 60 Hz.
V50H
94-270-030
Bobbin
Starting at $105.82
Transformer - Hammond, Guitar Amplifier, replacement for Yorkville / Traynor
  • Replacement for Yorkville/Traynor amplifiers
  • 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".

Part No. Primary Secondary 1 Secondary 2 Secondary 3 Yorkville / Traynor Amp Yorkville / Traynor Part No VAC Hz. P-T290TRA 120 V 60 Hz. 320 V @ 600 mA 60 V @ 50 mA 6.3 V.C.T. @ 9 A 100 Watt Bass A-1380 P-T290TRB 120 V 60 Hz. 620 V @ 115 mA 6.3 V.C.T. @ 115 mA YBA2-B A-1314 P-T291JX 120 V 60 Hz. 320 V @ 500 mA 60 V @ 20 mA 6.65 V.C.T.
Starting at $107.52
Choke - Hammond, Replacement for Vox AC30 reissue
Replacement for Vox AC30 reissue


Inductance ± 15%
5 H


D.C. Current
150 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.
$52.00
Transformer - Hammond, 2W Audio Miniature Epoxy Potted
Features:
  • Perfect for audio input, line matching, isolation or output transformer applications.
  • 2 watt (± 1.5 dB, 300 Hz. - 50 kHz.).
  • Epoxy potted in an attractive black molded case, Pin type P.C. board mount (min. 0.187" length).
  • Power level ratings are maximum at lowest frequency rating
  • Power can be increased slightly at higher frequencies.
  • Will withstand soldering for 10 sec. @ 260 degrees C, ambient temp. 85 degrees C max.
$38.00
Transformer - Hammond, Microphone Splitter 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
Starting at $75.35
Transformer - Hammond, Toroidal Power, 12V / 24V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 24 V series, 12 V parallel secondary.
Starting at $63.65
Transformer - Hammond, Toroidal Power, 15V / 30V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 30 V series, 15 V parallel secondary.
Starting at $61.85
Transformer - Hammond, Toroidal Power, 24V / 48V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 48 V series, 24 V parallel secondary.
Starting at $141.05
Transformer - Hammond, Toroidal Power, 30V / 60V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 60 V series, 30 V parallel secondary.
Starting at $70.53
Transformer - Hammond, Toroidal Power, 60V / 120V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 120 V series, 60 V parallel secondary.
Starting at $108.48
Transformer - Hammond, Toroidal Power, 90V / 180V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 180 V series, 90 V parallel secondary.dary.
$97.65
Transformer - Hammond, Toroidal Power, 40V / 80V secondary
Dual 117/234 VAC primary, 50/60 Hz. operation. 80 V series, 40 V parallel secondary.
$303.80
Transformer - Hammond, Output, 8 W, 2.5k or 4k Primary
Specifications Audio Watts: 8 Primary Impendance (Ohms): 2.5k/4K center-tapped Secondary Impendance (Ohms): 6/8 - 3.2/4 Mounting centers: 2-13/16u-bracket Weight: 1.0 lb.
$52.00
Transformer - Hammond, Tube Driver Interstage
Audio watts: 4
Impedance: 5k ohms
D.C. Resistance: 178 ohms
Inductance: 44 henries
Rated D.C. Bias Current: 30 mA
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 use bifilar wound windings for exceptional coupling and bandwidth.
  • Minimum frequency response 20 Hz. - 20 Khz (± 1db max. ref. 1 Khz.).
  • The core is gapped to support the specified D.C.
$117.55