Hint:

We’re taking a short break

...and will be back on 
Monday, 04 May 2026 from 8:00 a.m.

Until then, we wish you a wonderful May Day holiday ;-)

JJ 5U4GB
JJ 5U4GB
JJ 5U4GB

JJ 5U4GB

Product No.:
jj5u4gb
In stock for immediate delivery. Delivery time depends on the destination country* In stock for immediate delivery. Delivery time depends on the destination country*
RoHs:
conform
Weight:
0.06 kg per piece
21,20 €

incl. VAT excl. Shipping costs

Bookmark
Ask Question
Description

FULL - WAVE VACUUM RECTIFIER
5U4GB is a directly heated full wave octal base rectifier for Hi-Fi and guitar amplifiers. Suitable for use in any 5U4 socket.

Files:


 
Manufacturer
Herstellerinformationen | Manufacturer Information
JJ Electronic
A. Hlinku 3
022 01 ČADCA
Slowakische Republik
www.jj-electronic.com
Customer reviews

Essential information about customer reviews We do not verify that the published reviews come from such consumers who have actually used or purchased the rated goods or services. All reviews, i.e. positive and negative, are published. No reviews that are unobjective, offensive or unrelated to the product will be published.

Unfortunately there are no reviews yet. Be the first who rates this product.

Customers who bought this product bought also the following products:

Alpha Footswitch DPDT, PCB
Alpha Footswitch DPDT, PCB
  • Type: Footswitch
  • Version: DPDT Latching
  • Rating: 6A/125VAC, 3A/250VAC, 4A/30VDC
  • Contact resistance: 50mΩ silver contacts
  • Insulation resistance: 500VDC-100MΩ min.
  • Dielectric strength: 1000VAC for 1 minute
  • Operating Life: 30.000 cycles
  • Termination Style: PCB - mount
3,40 €

Footswitch SPDT latching, ON - ON
Footswitch SPDT latching, ON - ON
  • Type: Footswitch
  • Version: SPDT latching ON - ON
  • max. Rating: 2A / 250 VAC
  • Drill Ø: 12 mm
  • Termination Style: solder-lugs
1,95 €

F+T 47 µF @ 350 Volt, axial
F+T 47 µF @ 350 Volt, axial
  • Type: Aluminum Electrolytic Capacitors
  • Capacitance: 47 µF
  • Voltage Rating: 350 V
  • Tolerance: +/- 20%
  • Operating Temperature Range: - 40°C / + 85 °C
  • Dimensions: Ø 14 mm x 28 mm
  • Termination Style: axial
2,40 €

F+T 25+25 µF @ 25 Volt, axial
F+T 25+25 µF @ 25 Volt, axial
  • Type: Aluminum Electrolytic Capacitors
  • Capacitance: 25 + 25 µF
  • Voltage Rating: 25 V
  • Tolerance: -10% +30%
  • Operating Temperature Range: - 40°C / + 85 °C
  • Dimensions: Ø 25 mm x 49 mm
  • Termination Style: axial
4,95 €

LED 5 mm blue
LED 5 mm blue
  • LED 5,0 mm
  • 6000 mcd
  • forward voltage 3 V
  • blue
0,09 €

Footswitch Fender® Vintage-Style, 2-Button, black (0994051000)
Footswitch Fender® Vintage-Style, 2-Button, black (0994051000)
Fender® style Footswitch
For older Twin Reverb®, Deluxe Reverb, Pro Reverb, Super Reverb, Bandmaster Reverb, and all vintage amps with 2-way footswitchable ON/OFF with RCA connector.
  • Color: black
  • 2-button
  • Vintage style, black
  • RCA-Plug
  • ca. 5 m shileded wire
  • Replacement for Fender 0994051000
25,90 €

JJ 12AT7 / ECC81
JJ 12AT7 / ECC81

JJ's version of the ECC81/12AT7 tube type with a warm and soft sound. Often used for phase inverters or reverb drivers.

Files:

14,90 €

MOD Reverb Tank 4AB3C1B
MOD Reverb Tank 4AB3C1B
  • Springs: 2
  • Delay Type: long
  • Size: long
  • Replacement: Fender, Marshall, Ampeg "F"
  • corresponds to Fender part number 006-4063-049
39,00 €

Hammond 1750H Spare for Fender 125A1A / 022640 Deluxe
Hammond 1750H Spare for Fender 125A1A / 022640 Deluxe
  • Output Transformer 125A1A / 022640 Push-Pull
  • for Deluxe, Deluxe Reverb
  • Pri: 6,600 Ohm / CT
  • Sec: 8 Ohm
  • Power: 20 Watt

Files:

58,10 €

Hammond 291AEX Spare for Fender 125P1B / 022772 UPGRADE Champ
Hammond 291AEX Spare for Fender 125P1B / 022772 UPGRADE Champ
  • Universal Primary: 120/220/230/240V 50/60 Hz
  • Powertransformer for (Bronco, AA764, AB764, Blackface, Silverface) (Champ, Tweed, 5C1, 5E1, 5F1, AA764, Blackface, Silverface, Vibro Blackface) (Harvard, 6G10) (Princeton Tweed, 5B2, 5C2, 5D2, 5E2, 5F2, 5F2A) (Princeton, Brown, AA964, Blackface, Silverface) (Princeton Reverb, AA1164, AA764, B1270, Blackface, Silverface)
  • Fender Part Number 125P1B and 022772
  • 291AEX uses high grade 29M6 magnetic steel laminations for reduced losses, more surge output power, cooler operation & longer life.

Files:

129,10 €

JJ 6V6 Red Labe - PAIR - Double Mica Special Edition
JJ 6V6 Red Labe - PAIR - Double Mica Special Edition

2 tubes, matched as pair

JJ 6V6 Double Mica double-layered mica in the upper part of the tube. This stabilizes the tube system and significantly reduces possible vibrations that can occur due to heavy mechanical stress. This version of the JJ 6V6 was specifically designed for use in combo amplifiers.

The JJ6V6 is a beam power pentode with octal base and a maximum plate dissipation of 14W. It has fat low end and full mid tones with very good tone separation and a smooth, clean high end - in general, a very balanced tone.
Currently, the only new production 6V6 which is approved for up to 500V anode voltage in pentode operation.

Files:

55,00 €
27,50 € per Piece

Accutronics Reverb Tank 4EB2C1B
Accutronics Reverb Tank 4EB2C1B
  • Springs: 2
  • Delay Type: medium
  • Size: long (17" / 42,5 cm)
  • Input Impedance: 600 Ohms
  • Output Impedance: 2250 Ohms
  • Replacement: Peavey™ Bravo 112, Encore 65, Classic 30, Backstage 30, Valveking 100, Windsor Studio ( Peavey™ Part# 71011114)
Accutronics by Accu-Bell, Made in Korea
28,00 €

TT 6L6 GC Next Gen - PAIR
TT 6L6 GC Next Gen - PAIR

2 tubes, matched as pair

TT 6L6 NG - Selected and tested by hand, suitable as a direct replacement type for all 6L6GC and 5881 tubes.

Limited Values
  • Triode
    • Ua = 450 V
    • Ug2 = 450 V
    • Wa = 30 W
  • Pentode
    • Ua = 500 V
    • Ug2 = 500 V
    • Wa = 30 W
  • Grid No 1 Circuit Resistance
    • Fixed Bias 0,1 MΩ
    • Self Bias 0,5 MΩ
56,00 €
28,00 € per Piece

JJ 12AX7 / ECC83S V1
JJ 12AX7 / ECC83S V1

TT Selection: V1 - Low Noise
This tube is selected for sensitive input stages (V1)

Sweet and warm sounding preamp tube with high gain. We recommend this tube for guitar/bass amps.

Files:

21,90 €

Hammond 1750A 125A20B / 022921 Spare for Fender Reverb
Hammond 1750A 125A20B / 022921 Spare for Fender Reverb
  • Reverb Driver 125A20B / 022921 Single-Ended
  • Pri: 22800 Ohm
  • Sec: 8 Ohm
  • Power: 3,5 Watt

Files:

36,50 €