Transformers & Chokes

Includes: 3 pole, 3 position rotary switch (3P3T), 1/4" output jack and black chicken head knob. Hammond 1600A series transformers provide 'easy wire secondary' impedances of 4, 8, or 16 ohms. We now offer a selector switch, pre-wired and complete with 1/4" output jack. Follow simple instructions provided to wire transformer secondary to switch, mount switch and 1/4" jack in separate 3/8" diameter holes in chassis and you'll easily be able to select output impedance as necessary. (Not recommended for 1645A or 1650G)
(See P-H1600 for a selector switch to work with Hammond 1600 series transformers.)

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.

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.

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. core saturation.
• Primary impedance range from 2,500 to 10,000 Ohms.
• Secondary impedance range from 4 to 32 Ohms.

Part No.
Audio Power
Max D.C. Bias
Dimensions (Inches)


A
B
C
D
E
G Mtg.

• Over designed for single ended tube output circuits (triode, tetrode or pentode tubes).
• Enclosed (shielded), 4 slot, above chassis Type 'X' mounting.
• Frequency response at least 20 Hz. to 20 Khz. at full rated power (± 1 db max. ref.

• Designed for push-pull tube output circuits.
• Enclosed (shielded), 4 slot, above chassis Type 'X' mounting.
• Frequency response 30 Hz. to 30 Khz. at full rated power (± 1 db max. - ref.

• Designed for push-pull tube output circuits.
• Enclosed (shielded), 4 slot, above chassis Type 'X' mounting.
• Frequency response 30 Hz. to 30 Khz. at full rated power (± 1 db max. - ref.

Hammond output transformer - replacement for Orange Rocker 30 Specifications: Part No. Pri Ohms Sec Ohms Amplifier Type Watts Bobbin/Paper Winding Equivalent To P-T1750ORF 6,000 C.T. 8, 16 Push-Pull 35 W Bobbin OT199SL

• Replacements for Fender 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".

• Replacements for Marshall 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".

• 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".

• Replacements for Yorkville/Traynor 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".

• Replacements for Marshall 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".

• Replacement for Vox 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".

• 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.

Specifications Output 8 W Primary Impedance 4,000 to 9,000 Ω Mounting Centers 2.375" Weight 0.7 lbs

Specifications

• Power: 8 W
• Primary Impedance: 5,000 Ω single-ended
• Secondary Impedance: 8 Ω
• Primary DC Resistance (Red to Blue): 230 Ω
• Mounting Centers: 2.375"
• Mounting Type: U-bracket
• Weight: 0.7 lbs

Replacement for Bassman heads. Equivalent to #125A13A & #022871.

Fender® Original '59 Bassman Reissue output transformer. Equivalent to #036485.

Made precisely to the original Fender® specifications. Drop-in replacement for '65 Twin Reverb Reissue. Made in the USA. 120V Primary.

Genuine Fender power transformer designed for use in the ‘65 Deluxe Reverb as well as the ‘68 Deluxe. Made to original fender specifications. 120V Primary