A vintage Hammond B3 with polished wood casing, featuring two keyboards with black and white keys, a music stand, and an attached bench in a rehearsal studio setting.

Leslie 21H Series III 20W Rebuild Kit

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Leslie 21H Series III 20W Rebuild Kit

Leslie 21H Series III 20W Rebuild Kit

$85.00
Sale price  $85.00 Regular price 
Shipping calculated at checkout.

The 20-watt Leslie 21H Series III power amplifier was used in later 21H models.

Tube complement: 2x 5Y3, 4x 6V6, 1x 6SN7, and 1x 6J5.

IMPORTANT: Not all Leslie 21H amplifiers are the same. This kit is intended for the 20-watt 21H Series III amplifier, not the optional 30-watt 32H Series III amplifier. Verify your amplifier before ordering.

Over the decades, the original electronic components in these amplifiers, particularly resistors and capacitors, can deteriorate or drift from their specified values. This can lead to a variety of issues, including static, thunderstorm-like noises, reduced volume, intermittent operation, and overall poor sound quality.

While replacement components are available individually from various distributors, we've eliminated the guesswork and hassle of sourcing them separately by offering everything you need in one convenient package!

Installation instructions, a schematic, and/or a component list will be provided as a digital download after purchase, as applicable.

Important Notice:

  • Technical support is limited to the information provided in this listing. No additional installation instructions or support are included.
  • Any improper installation, modification, or misuse of this product will void all warranties.
  • Installation and use of this product are performed entirely at the user’s own risk. Servicing or modifying electronic equipment involves inherent risks of injury, damage to equipment, and damage to personal property.
  • Tonewheel General assumes no responsibility or liability for any damage, loss, injury, or other consequences resulting from the installation or attempted installation of this product.
  • If you are not fully confident in your ability to perform this installation safely and correctly, we recommend sending the unit to us for professional service.

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