Mesa Boogie Full Revalve Kits / Mesa Triple Rectifier Harma Classic 6L6GC Retro Full Upgrade Kit

Mesa Triple Rectifier Harma Classic 6L6GC Retro Full Upgrade Kit Mesa Triple Rectifier Harma Classic 6L6GC Retro Full Upgrade Kit Click on image(s) above to view larger

All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.

A test report is available click here to view

These are specially selected full revalve kits for Mesa Boogie owners. The sets consist of specially position selected pre amp valves that have been selected for each position in your Mesa. We have 2 pre amp kits, Standard gain, to give a warm and fat overdrive and Our Classic kit provides boogie owners with a valve close in tone to the vintage Mullard ECC83. In terms of 6L6GC we have selected sets available that will work with the boogies fixed bias arrangement. Certain 6L6GC will be better for certain kinds of music and these we have indicated in our product description.
Special Offer 10% Discount

This full revalve kit consists of specially selected Harma Retro valves for Mesa Boogie amplifiers. This set has been designed to give your Mesa more top end transparency and the classic warm tone with rich creamy distortion that many players require out of their Mesa amplifiers.

The pre amplifier valves are specially selected for Mesa amplifiers for low microphonics and gain and the kit includes a balanced valve for the phase inverter position.

The output valves have been specially burst tested as all Harma output valves are under real working conditions to ensure the utmost reliability. The output valves have also been specially selected to run with Mesas non- adjustable fixed bias arrangement.

The Harma ECC83 Retro pre amp valve offers more harmonic warmth with more transparency in the midrange. The outstanding feature of the Harma ECC83 Retro is it smooth linear midrange response and clarity under overdriven conditions. So you get smooth warm singing overdrive with tight fat punchy lows. This has become our most popular pre amp valve for Mesa amplifiers.

The Harma 6L6GC Retro is a re issue of the famous Sylvania STR 387. It features the same anode plate design with internal bracing and has extra thick mica spacers with steel spacers which reduces vibrations, rattle and microphonics which are a problem with many modern 6L6GC.

Sound wise, the Harma 6L6GC Retro provides a clear extended treble response in order to spice up old vintage amps and also cater for the modern high gain sound. In overdriven mode the valve has a creamy touch sensitive response which makes it our choice for use in Mesa amplifiers.

In many users opinion the Jan 5U4GB was the best of its type. The valve features a ruggedised vibration proof box anode construction, Top and side getter to ensure that gas free evacuation was achieved and to maintain the vacuum at its best. The valve has high grade filament isolation so even after long periods of use the filament will not degrade.

The valve also has a higher current capacity than a 5U4G so is many players choice is Mesa Boogie Dual and Triple rectifiers.

The full upgrade kit consists of 14 valves

4 Specially Selected Harma ECC83 Retro
1 Specially Selected and Balanced Harma ECC83 Retro
6 Specially Selected Harma 6L6GC Retro
3 Specially Selected Philips USA 5U4GB

Please not that this kit is for the valves only



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