Fender Full Revalve Kits / Fender Bassman 1959 Reissue Harma STR Groove Tube Super Pre 6L6GC GE RI 5U4GB Full Revalve Kit

Fender Bassman 1959 Reissue Harma STR Groove Tube Super Pre 6L6GC GE RI 5U4GB Full Revalve Kit   Click on image(s) above to view larger
£116.00
£98.60

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Fender Amplifiers have a huge musical legacy that dates from the very beginning of modern popular music. Fender amplifies have a clean tonal character which is not matched by another manufacture in the world. Our Fender full revalve kits are put together after a life time of using and comparing the performance of valves in these amplifiers. The kits offer the best options drawn from original new old stock USA made valves and their modern counterparts. They are designed and put together to provide improved sonic and tonal definition with more clarity out of these legendary amplifiers. Each preamp kit is specially selected for low noise, uniform gain and tonal characteristic. All output valves have been burst tested and matched on anode current and gain.
15 % Discount


The Fender Bassman 1959 Reissue Harma STR GT- 6L6 GC GE Full revalve kit with a 5U4GB rectifier is designed to give you the best balance of clean headroom and smooth warm overdrive with earlier compression.

The Harma ECC83 –STR is used in our Fender kits as is the best choice for the sparkling clean sounds that most players want from their Fender amplifiers. The mid-range is very transparent which when changing pickup selection give a nice tonal variation which is lost in some other valves.
The valve responds very well to pedals and crunches up without that harsh fuzzy tone.
The Harma ECC83 STR construction is based on the famous frame grid design that was pioneered in Germany by Telefunken. The advantages of this design are reduced microphonics and better isolation from vibration, which is very important in combo applications such as Fenders.

We use a specially gain selected valve in all positions to ensure sparkling Fender clean sounds. V1 & V2 are the most critical positions in this amplifier as the amplifiers design is a vintage voiced circuit. A balanced phase inverter valve ensures even drive to the output valves.

The Groove Tubes 6L6GC-G.E Re issue is a faithful recreation of General Electric later type clear top 6L6GC. This is one of the most famous 6L6GC of all time due to incredible dynamic range and large sound stage.
We have chosen this valve as it has the right balance of clarity and distortion when pushed in Fender amplifies. In clean mode, this valve provides a warm smooth sound with a very clean and open treble and is a faithful reproduction of the originals tone. In overdriven mode the valve has the right balance in terms of clarity and crunchy dynamics producing a clear creamy warm sustain.

The 6L6GC-G.E reissues are our Super Premium valves which have been specially burst tested by us. We take selected GT items and in addition to GTs in house testing and distortion rating they then also undergo our own unique real world burst testing. The burst testing process involves a series of varying timed electrical signal bursts. This runs the valves under the same stress conditions that they will meet in your amplifier. All out put valves are then dual matched by us on current and gain. This will ensure that you get the best selected GT valves available anywhere in the world.

By replacing the GZ34 with a 5U4GB you will make the amplifier have more compression or sag.
What this means is the spongy touch sensitive response of amplifier will happen sooner.
The reason for this is that when used in place of a GZ34 the 5U4GB produces more voltage drop.
This is a common substitutes and a favourite of many professional players.

The kit consists of 6 valves

2 Specially Selected Harma ECC83 STR for positions V1 & V2
1 Specially Selected & Balanced Harma ECC83 STR for V3.
2 Groove Tube 6L6GC-GE Re issue Super Premium in matched pair.
1 Specially Selected Harma Retro 5U4GB

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