Fender Style Reverb Driver 3,5 W 125A20B

The LNDVerb kit is based on a classic Fender reverb circuit, but uses LND 150 Mosfets instead of tubes. These can be operated at voltages as high as 500 V, to get as close as possible to the characteristics of real tubes.

The kit can be integrated into an existing amplifier or can be build as standalone unit like the Fender tube reverb.

The unit needs less than 10 mA current, so a VPump for example can be used as power supply in a standalone build. If it gets integrated into an existing amplifier the already present power supply of the amp can be used to supply the needed voltage for the unit without the need to upgrade the power transformer.

A reverb transformer of the type 125A20B or similar and a reverb tank are necessary to operate the LNDVerb. These are both not included in the kit.

The needed RCA phone sockets and potentiometers are included in the kit.

Further informations and examples of the finished unit can be found in the PDF below.

Matching parts are linked below and can be ordered with the unit if needed.

Files:

• Datasheet

 

• Type: Classic Black
• Material: Phenolic
• Shaft Size: 6 - 6,3 mm
• Size: 23,85 x 15 mm
• Mounting: Set-Screw

• Fuseholder, Chassismount, 5x20 mm
• IP 40
• Rated voltage: 250 VAC
• Rated current: 10 A (VDE), 16 A (UL/CSA)

Files:

• Datasheet

• Type: Toggle Switch
• Version: SPST, ON - OFF
• Rating: 15A / 250VAC, 10A / 400VAC
• Contact resistance: 10 mΩ max. at 1A 2VDC
• Insulation resistance: 1.000 MΩ min. at 500VDC
• Dielectric strength: 2.000 Vrms 50 Hz min.
• Operating Life: 10.000 cycles at full load
• Termination Style: solder lug / quick-connect terminals

Files:

• Datasheet

Power Jack, Chassis mount

• different manufacturer
• Ratings IEC: 10 A / 250 VAC; 50 Hz
• Norm IEC320 / C14
• Betriebsspannung: 10 A / 250 VAC; 50 Hz
• Material: Housing PA6, black, UL 94V-0

Hole cover cap with convex head, tapered to a thin edge.

• Material: polyamide
• Color: black
• Wall thickness: max.3.2 mm
• Mounting hole diameter: 30.1 mm
• Head diameter: 33.3 mm
• Overall covered length: 11.5 mm
• Operating temperatures: max. +105 °C

• Springs: 3
• Delay Type: medium
• Size: short
• Replacement: JC 120
• Accutronics by Accu-Bell, Made in Korea

Vacuum Tube Damper made of silicon, helps to reduce noise and rattle of vacuum tubes. But it will not turn a bad tube into a good tube.
If a higher level of damping is needed, than use more than one damper per tube.

• Inner diameter ca. 45 mm
• Price per damper

BEFORE ordering check the exact outer diameter of the vacuum tubes and compare it with the diameter of the damper to make sure that the damper fits.

Vacuum Tube Damper made of silicon, helps to reduce noise and rattle of vacuum tubes. But it will not turn a bad tube into a good tube.
If a higher level of damping is needed, than use more than one damper per tube.

• Inner diameter ca. 22 mm
• Can not be used with JJ 12AX7 and other JJ preamp tubes with similar diameter and JJ EL84 and JJ EL844
• Price per damper

BEFORE ordering check the exact outer diameter of the vacuum tubes and compare it with the diameter of the damper to make sure that the damper fits.