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Details about  TAD-Tube Amp Doctor - Tone Bones 6L6/EL34/5881 to EL 84 Class A tube converters

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TAD-Tube Amp Doctor - Tone Bones 6L6/EL34/5881 to EL 84 Class A tube converters
Item Ended
Item condition:
Jun 20, 2012 01:44:35 PDT
Starting bid:
US $74.99
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Item location:
Marietta, Georgia, United States


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Seller assumes all responsibility for this listing.
Last updated on  Jun 13, 2012 01:56:01 PDT  View all revisions

Item specifics

Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully ... Read moreabout the condition

Tube Amp Doctor


Tone Bone Converters


TONE BONE includes selected EL84 tube + english manual
 Replace 6L6GC, 5881, EL34 and 6V6GT for EL84/6BQ5 tubes and operates them in pure CLASS A. It is ready to plug in your amp and play. The TONE BONE improves the amp sonically, by increasing its sensitivity and reduces the overall loudness so you can crank it up but maintain a reasonable volume.

- Class A + Cathode Bias with EL84
- Pure harmonic sweet distortion for every amp
- Extra smooth tone with Triode version
- Decent compression when played clean
- Improves sustain and thickens your tone
- Replaces 6L6GC, EL34, 5881, 6V6GT with EL84
- Plug & Play! No adjustments, no modifications

How the TONE BONE? benefits your amps voice:
The tone of a CLASS A operated guitar amp is well known from the legendary VOX AC30. Tone gets more alive, the amp responds more directly and musically. It instantly improves sustain, thickens tone and is adding a "three-dimensional" character with decent compression and smooth harmonic distortion when driven to the limit. The overall loudness will be reduced as the Class A as the EL84 tubes provides less output volume. So you can crank up your amp all the way and achieve the best sonic performance at reasonable volumes. 

PLUG & PLAY or How to install
Switch off your amp, pull out the power tubes (6L6GC, 5881, EL34 or 6V6GT) and plug in TONE BONE? converters including their EL84 tubes, switch amp on. Done!

Size: the ToneBone is without pins 12cm high (5cm adaptor + 7cm EL84).
1cm air gap between the top of the EL84 and Cabinet is required for mounting and air flow.

The TONE BONE? is total self-adjusting. No adjustments, no modifications!
As you do not adjust the bias you might switch back to the original power tubes at any time you want.

The overall power output depends on your amp.
Using the Pentode Converters you can expect: 7 - 9 Watt per converter, 14 -18 Watt per pair

The use of TONE BONE converters is not recommended for amps with Class A / Class AB switching facility (e.g. Fender® Prosonic). These must be used in Class AB position only when using TONE BONEs?.
DO NOT USE the TONE BONE for amps with cathode controled power amps (e.g. Musicman® RD series, Peavey® Classic 75/100 etc.).
DO NOT USE the TONE BONEs in Amps with serial filament like the Peavey® Valveking series, Blackstar® Series One
DO NOT USE the TONE BONEs in Amps with automatic Bias controls like Hughes&Kettner with TSC System

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