Here we have compiled tube kits for your amplifier.  Find your make, then click on the model of your amp.  The link will take you to the proper complete kit for your amplifier.  These tube kits are offered for general maintenance of your amplifier.  We suggest re-tubing an amplifier every six months to one year depending on hours of amp use.  This regular maintenance will keep your amp in proper working order for years of life on your valuable purchase.  Some amplifiers are fixed bias, meaning that you can replace the tubes without any adjustment to the amp.  Some, however, need re-biased with every re-tube.  If you are not sure which category your amp falls under, or if you do not feel comfortable re-tubing the amp yourself and live locally you can bring the amp in to our shop during our open hours.  We will re-tube/re-bias your amplifier while you wait after you purchase your tubes online, just choose the “Store Pickup” option.  Please note that these tube kits are strictly for maintenance.  If you have a problem with your amplifier we suggest that you bring your amp in for an evaluation and estimate.  Most estimates can be done in 5-10 working days, with most parts available in stock. 

Tubes should always be replaced as a whole kit to ensure even wear.  If you would like to purchase tubes individually, please visit the “Individual Tubes” section on our parts page. 

Some technicians claim that fixed bias amps are cold biased and the amp will not function up to potential.  Here at E.A.R.CO.S., we believe that these amps are designed with a setup bias point for maximum performance and longer tube life.  If you have any questions before your purchase please use the contact form or call us at the number provided on the “Contact Us” page.

Each of our tube kits has been assembled with factory tubes from the manufacturer’s specifications.  Replacing with these kits will ensure that your amplifier remains under the warranty through the manufacturer.  Our tube kits are just manufacturer and E.A.R.CO.S. suggestions and may be used in other amps if you prefer.