Transformers & Chokes

Replacement for Fender Deluxe, Deluxe Reverb, Vibrolux, Vibrolux Reverb Equivalent to Manufacturer part number 125C3A & 022707 Specifications: Inductance ± 15% 4 H D.C. Current 50 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.

Replacement for Fender Bandmaster, Dual Showman, Pro Reverb, Twin Super Equivalent to Manufacturer part number 125C1A & 022699 Specifications:

• Inductance ± 15%: 4 H
• D.C. Current: 90 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.

Replacement for Marshall Plexi JCM 800.


Inductance ± 15%
40 H


D.C. Current
50 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.

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.

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.

Replacement for Marshall Plexi Specifications:

• Inductance ± 15%: 3 H
• D.C. Current: 250 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.

The PRC-1 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.

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.

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.

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.

Toroidal power transformer. 30VA, 50/60 Hz. 12.30% voltage regulation, open toroid center.

• Torodial transformer benefits:
  
  • low profile
  • lightweight
  • cool running / high efficiency
  • due to the core shape - low stray magnetic flux leakage (low EMI)
• Dual 117/234 VAC primary, 50/60 Hz. operation.
• Note: Units are designed to have all windings engaged (either series or parallel connected) or connected as an autotransformer.
• Supplied with two neoprene rubber insulating pads, one metal centering washer and all mounting hardware
• Minimum 8" long flexible leads
• Manufactured using Class B (130 degree C) materials.
• Hi-Pot test of 4,000VAC RMS between primary & secondary
• UL recognized to UL506 (XPTQ2.Guide) UL file #E207860
• CSA certified to C22.2 #66 - CSA file #209651
• CE compliant to IEC 61558-2-4

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.

• 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.

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

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.

• Designed for general purpose or replacement use in push-pull tube output circuits. (For single ended use, see our 125 SE series - optimized for single ended tube output circuits).
• Frequency response: 150 Hz. - 15 Khz (± 1db max. ref. 1 Khz).
• Open style with minimum 5" long primary leads, secondary solder lugs for convenient secondary connections.
• Tables provided with transformer listing 90 pre-calculated impedance ratios.

• Designed for general purpose or replacement use (not Hi-Fi), in single ended, tube output circuits.
• Frequency response: 100 Hz. - 15 Khz (± 1db max. - ref. 1 Khz). (For full frequency response (20 Hz. to 20 Khz.) - see P-T1627SE).
• For push-pull output use, see P-T125A - optimized for push-pull tube output circuits.
• Open style with minimum 12" long primary & secondary leads leads.
• All sizes use butt stacked cores (using 29M6 steel) with an air gap, to reduce D.C.

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.

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"

Audio TX driver, chassis mount.

• 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.

• Primary: 600 ohms
• Secondary: 600 ohms
• Primary D.C.: 18 mA
• D.C. Resistance (±15%): 30 ohms primary, 38 ohms secondary
• Output: 200 mW

• Application: Driver
• Primary Impedance: 4000 ohms
• Secondary Impedance: 600 ct
• Primary D.C.: 8 mA
• Primary D.C. Resistance: 340 ohms
• Secondary D.C. Resistance: 24 ohms
• Output: 135 mW
• Dimensions A: 1.63
• Dimensions B: 0.88
• Dimensions C: 0.81
• Dimensions D: 1.38

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.
• Net weight: 0.5 oz.

• Application: Driver
• Primary Impedance: 10000 ohms
• Secondary Impedance: 2000 ct
• Primary D.C.: 5 mA
• Primary D.C. Resistance: 700 ohms
• Secondary D.C. Resistance: 89 ohms
• Output: 135 mW
• Dimensions A: 1.63
• Dimensions B: 0.88
• Dimensions C: 0.81
• Dimensions D: 1.38

Features:

• Small, economical, open, two hole horizontal bracket mount.
• Insulated, color coded flexible leads, 4" long minimum
• Frequency response 150 Hz. to 15 Khz.

Features

• Economical "open bracket" - channel mount.
• Tolerance of 15% on both inductance & resistance.
• Inductances measured at rated D.C.

• Vertical mount, split bobbin design.
• Non-concentric wound.
• Low primary to secondary coupling - no electrostatic shield required.
• High insulation - Hipot of 2,000V RMS.
• Class B insulation - 130 degrees C.
• CSA certified (File # LR3902) and UL recognized (File #E207860).