Transformers & Chokes

The UBT-1 from One Electron is a low-impedance single-ended output transformer intended for parallel combinations of tubes running a B+ voltages of 250 to 325 volts, such as: two or three EL34s (triode connected), three 2A3s, two 300Bs, two 6AS7s, etc., as well as single sweep tubes run in 'enhanced-triode' mode, resulting in 10 to 15 watts of output power.

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.

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"

• 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).

Genuine Marshall™ output transformer for JTM45.

Genuine Marshall™ 50 watt power transformer for JCM900.

• Primary 115 VAC, 60 Hz.
• Secondary 10 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).

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.

Capacity: 100 VA
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 critical line voltage needs (examples: older "classic" tube equipment or Japanese 100V equipment).
• CSA certified (# LR3902)
• Remember - These units do NOT convert line frequency

• Single Primary 115VAC
• Operates on 50/60 Hz.
• Combination solder or quick connect terminals.
• Split bobbin construction eliminates the need for an electrostatic shield.
• Hi-pot tested to 2 KV RMS.
• Economical open style, channel frame - chassis mount design
• UL recognized & CSA certified.

• Universal primary with taps for 100, 120, 220 or 240 VAC, 50 / 60 Hz. (Except the 260A6 which is 117V, 50/60 Hz only)
• Designed for preamps, low power amps, general replacement, test equipment, etc.
• Economical, open frame, chassis mount - two hole (.187 dia. = G) channel bracket (figure #1) or four hole mounting (figure #2).
• Units include a Faraday shield between the primary and secondary windings. Our electrostatic shield reduces the capacitive coupling from the primary - greatly attenuating higher frequency current coupling to the secondaries.
• Minimum 5" long leads.
• For more selection check out our P-T300-X series of universal plate & filament transformers.

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".

Fender® Original Tone Master Power Transformer. Equivalent to #026477.

Fender® Original '59 Bassman Reissue Power Transformer. Equivalent to #036483.

• 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)

• Primary 115 VAC, 60 Hz.
• Secondary 5 C.T.
• All secondaries center tapped, VAC (RMS)
• Enclosed, 4 hole chassis mount.
• Minimum 6" long leads.
• Dual bobbin design - no electrostatic shield required.
• Class B insulation (130 degrees C).
• Hi-Pot test of 2,000V RMS.
• UL listed (# E50394) & CSA certified (209651).

• 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

Specifications:

• Size: 15 VA
• Dual Primary: 117 VAC, 234VAC, 50/60 Hz.
• Secondary VAC RMS Series: 5V @ 3 A
• Secondary VAC RMS Parallel: 2.5V @ 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 p

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.

• Primary 115 VAC, 60 Hz.
• Secondary 24 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).

• Primary 115 VAC, 60 Hz.
• Secondary 60 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).

• Primary 115 VAC, 60 Hz.
• Secondary 16 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).

• Primary 115 VAC, 60 Hz.
• Secondary 36 C.T.
• All secondaries center tapped, VAC (RMS)
• Enclosed, 4 hole chassis mount.
• Minimum 6" long leads.
• Dual bobbin design - no electrostatic shield required.
• Class B insulation (130 degrees C).
• Hi-Pot test of 2,000V RMS.
• UL listed (# E50394) & CSA certified (209651).

Secondary VAC: 12.6V C.T.
Current: 4 A
VA Rating: 50.4
Features:

• Dual Primary 115/230VAC
• Operates on 50/60 Hz.
• Combination solder or quick connect terminals.
• Split bobbin construction eliminates the need for an electrostatic shield.
• Hi-pot tested to 2 KV RMS.
• Economical open style, channel frame - chassis mount design
• UL recognized & CSA certified.