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Full front view of the black amp with a silver control panel, exposed tubes, and a dark grey sparkle grille cloth, on casters.
01 / 24Full front view of the black amp with a silver control panel, exposed tubes, and a dark grey sparkle grille cloth, on casters.
The amp head's chrome control panel, with eight black knobs and three toggle switches, sits below two black transformers and a mesh tube cage.
02 / 24The amp head's chrome control panel, with eight black knobs and three toggle switches, sits below two black transformers and a mesh tube cage.
Close-up of the amp's chrome control panel with black knobs, four input jacks, and four toggle switches, showing some wear and scratches.
03 / 24Close-up of the amp's chrome control panel with black knobs, four input jacks, and four toggle switches, showing some wear and scratches.
Close-up of the black metal chassis, showing raised text "CSA TESTED" and numbers "002278" and "06-0-13" with some wear.
04 / 24Close-up of the black metal chassis, showing raised text "CSA TESTED" and numbers "002278" and "06-0-13" with some wear.
Close-up of a black metal component with embossed numbers, showing dust and minor scratches, with wires visible below.
05 / 24Close-up of a black metal component with embossed numbers, showing dust and minor scratches, with wires visible below.
Rear view of the black tolex cabinet with chrome latches, a single speaker jack, and four casters, with the exposed tube amp chassis on top.
06 / 24Rear view of the black tolex cabinet with chrome latches, a single speaker jack, and four casters, with the exposed tube amp chassis on top.
Close-up of the amp's rear, showing the black mesh tube cage, black transformers, and tarnished chrome chassis with a slot.
07 / 24Close-up of the amp's rear, showing the black mesh tube cage, black transformers, and tarnished chrome chassis with a slot.
Rear view of the black tolex cabinet with chrome corner protectors and casters, showing the amp head's silver control panel with inputs and power cord.
08 / 24Rear view of the black tolex cabinet with chrome corner protectors and casters, showing the amp head's silver control panel with inputs and power cord.
Rear view of the amplifier head, showing the black mesh tube cage, chrome chassis with inputs, and coiled power cable.
09 / 24Rear view of the amplifier head, showing the black mesh tube cage, chrome chassis with inputs, and coiled power cable.
Close-up of the amp's brushed metal rear panel with a black power cord, fuse cap, and serial number 066207.
10 / 24Close-up of the amp's brushed metal rear panel with a black power cord, fuse cap, and serial number 066207.
Close-up of the amplifier's brushed metal chassis, showing three black control knobs, screws, and visible scratches.
11 / 24Close-up of the amplifier's brushed metal chassis, showing three black control knobs, screws, and visible scratches.
The black tolex cabinet is viewed from the side, revealing the exposed tube amp chassis on top, chrome latches, and casters.
12 / 24The black tolex cabinet is viewed from the side, revealing the exposed tube amp chassis on top, chrome latches, and casters.
Close-up of the black 15-inch speaker cone and frame, showing visible dust, connected wires, and a small black box on the magnet.
13 / 24Close-up of the black 15-inch speaker cone and frame, showing visible dust, connected wires, and a small black box on the magnet.
Close-up of the cabinet's interior, showing yellowed, matted insulation and dark wood, with a black trim piece at the top.
14 / 24Close-up of the cabinet's interior, showing yellowed, matted insulation and dark wood, with a black trim piece at the top.
Close-up of the speaker's rear, showing the black cabinet with white stenciled numbers, a round blue and silver sticker, and red and green wires.
15 / 24Close-up of the speaker's rear, showing the black cabinet with white stenciled numbers, a round blue and silver sticker, and red and green wires.
Close-up of the amp's internal wiring, showing a circuit board with orange and cream capacitors, resistors, and colorful wires.
16 / 24Close-up of the amp's internal wiring, showing a circuit board with orange and cream capacitors, resistors, and colorful wires.
Close-up of the amplifier's internal wiring, showing a dense network of colorful wires, resistors, capacitors, and transformers.
17 / 24Close-up of the amplifier's internal wiring, showing a dense network of colorful wires, resistors, capacitors, and transformers.
Close-up of the amp's internal wiring, showing a circuit board with orange and cream capacitors, resistors, and tube sockets.
18 / 24Close-up of the amp's internal wiring, showing a circuit board with orange and cream capacitors, resistors, and tube sockets.
Close-up of the amp's internal wiring, showing a tarnished gold transformer, a light blue capacitor, and several orange resistors.
19 / 24Close-up of the amp's internal wiring, showing a tarnished gold transformer, a light blue capacitor, and several orange resistors.
A close-up of the amp's internal wiring shows a tangle of colorful wires, resistors, and capacitors, with a large orange capacitor prominent.
20 / 24A close-up of the amp's internal wiring shows a tangle of colorful wires, resistors, and capacitors, with a large orange capacitor prominent.
Close-up of the amp's internal wiring, showing three input jacks, resistors, and a potentiometer with various colored wires.
21 / 24Close-up of the amp's internal wiring, showing three input jacks, resistors, and a potentiometer with various colored wires.
Close-up of three tarnished potentiometers with colorful wiring, resistors, and capacitors, showing solder joints and some rust.
22 / 24Close-up of three tarnished potentiometers with colorful wiring, resistors, and capacitors, showing solder joints and some rust.
Close-up of the amp's internal wiring, showing four silver potentiometers with colorful wires, resistors, and capacitors, all with visible rust.
23 / 24Close-up of the amp's internal wiring, showing four silver potentiometers with colorful wires, resistors, and capacitors, all with visible rust.
Close-up of the amp's internal wiring, showing a bundle of frayed, colorful cloth-covered wires and a transformer.
24 / 24Close-up of the amp's internal wiring, showing a bundle of frayed, colorful cloth-covered wires and a transformer.

Ampeg

1967 Ampeg B-15N Portaflex Tube Amplifier Flip-Top Modified Black w/ 1x15" Cabinet

$1,995.00

Available

  • Year1967
  • ConditionGood
  • StoreSherman Oaks
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Specifications

Instrument

Year
1967
Model
Ampeg B-15N Portaflex Tube Amplifier Flip-Top Modified Black w/ 1x15" Cabinet
Condition
Good
Originality
modded
Store
Sherman Oaks

Amplifier

Tubes
Preamp Tubes And Sockets Modified To 12AX7

Description

1967 Ampeg B-15N Portaflex Tube Amplifier Flip-Top 

Surface Shows Normal Cosmetic Wear, Such As Various Small Nicks, Marks, And Scratches Throughout

Tested And Functional, Pots Are Scratchy In Some Positions

Several Electronic Modifications Including:

Replaced Schumacher Power Transformer Dating To 1960, Chassis Has Been Slightly Enlarged To Accommodate

Replaced Output Transformer Dates To 7th Week Of 1967

Rectifier Tube Modified To 5U4GB

Currently Running Vintage GE Preamp, And RCA Black Plate 6L6 Power Tubes And Rectifier

Re-Wired On Non-Original Circuit Board With Some Non-Original Wire

Polarity Switch Has Been Disconnected

Added Choke Transformer

Original CTS Speaker Dates To 39th Week Of 1967

2-Prong Power Cord

Please Note: We Do Not Offer Shipping On Amps Through This Site, Please Contact Our Store Directly For Shipping Info

The 1967 Ampeg B-15N Portaflex is a legendary all-tube bass amplifier renowned for its warm, rich tone and innovative flip-top cabinet design. Delivering approximately 30 watts through a single 15-inch speaker, the B-15N became a studio favorite thanks to its deep low end, smooth midrange, and exceptional recording character. Finished in Ampeg’s distinctive blue-check covering and built in Linden, New Jersey, the 1967 model represents one of the most sought-after versions of the classic Portaflex series, prized by bassists, collectors, and recording engineers alike.

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