All Tube, Handcrafted Amps, With Beautiful Solid Wood Enclosures!
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1. My version of a 10 watt 1 channel Class A (Single Ended) Hi Octane head, with spalted sitka spruce through dovetail cabinet and zebrawood face plate. Externally adjustable cathode bias. Has both 9 pin and 8 pin output tube sockets for running EL 84 or 6L6 type tubes!
![10 watt](../images/guitar resize/Andrew's_ 10watt_front.jpg)
![10 watt](../images/guitar resize/Andrew's_ 10watt_side.jpg)
![10 watt](../images/guitar resize/Andrew's 10 watt_back.jpg)
2. A 20 watt 6V6 Class AB (push-pull) 2 channel footswitchable head, with western red cedar half-blind dovetail cabinet,
externally adjustable fixed bias, selectable tube or diode rectifier.
Channel 1 is a crunchy mello overdrive.
Channel 2 is Bogner inspired modern hi-gain .
![20 watt](../images/guitar resize/20 watt_ front.jpg)
![20 watt](../images/guitar resize/20 watt_ back.jpg)
![20 watt](../images/guitar resize/20 watt_ side.jpg)
3. A 50 watt push-pull 2 channel footswitchable head with externally adjustable fixed bias,
currently running 2 JJ E 34L power tubes and 6 JJ ECC83 S preamp tubes,
Maple half-blind dovetail cabinet.
Channel 1 is Bogner inspired modern hi-gain
Channel 2 is Soldano SLO inspired modern ultra hi-gain
![](../images/guitar resize/50 watt 022.jpg)
![](../images/guitar resize/50 watt 015.jpg)
![](../images/guitar resize/50 watt 021.jpg)
![](../images/guitar resize/50 watt 031.jpg)
![](../images/guitar resize/50 watt 027.jpg)
![50 watt](../images/guitar resize/50 watt_front b.jpg)
4. A 100 watt push-pull 2 channel footswitchable head with an effects loop and cherry half-blind dovetail cabinet and zebrawood face plate.
The power amp section is a JCM 800 inspired EL 34 or 6L6, externally adjustable fixed bias.
The preamp is a Soldano SLO 100 , channel 1 is very clean and bright while channel 2 has more gain than I can use!
![](../images/guitar resize/100 watt_front.jpg)
![100 watt](../images/guitar resize/100 watt_112.jpg)
![100 watt](../images/guitar resize/100 watt_111.jpg)
![](../images/guitar resize/100 watt_115.jpg)
![100 watt](../images/guitar resize/100 watt_110.jpg)
5. A 50 watt push-pull single channel head with curly cherry half blind dovetail cabinet.
The power amp section is a standard EL 34 or 6L6, externally adjustable fixed bias.
The preamp section is a high gain lead II design based on John Hynes schematic at ax84.com.
![new 50 watt](../images/guitar resize/new 50 watt front.jpg)
![new 50 watt](../images/guitar resize/new 50 watt side_top.jpg)
![new 50 watt](../images/guitar resize/new 50 watt side.jpg)
![](../images/guitar resize/new 50 watt_back.jpg)
6. A 50 watt push-pull 2 channel footswitchable head with externally adjustable fixed bias,
effects loop, channels and master volume,
currently running 2 Winged C 6L6GC power tubes and 5 JJ ECC83 S preamp tubes,
Walnut and Maple half-blind dovetail cabinet, zebrawood face plate.
![](../images/guitar resize/walnut 50 watt_front_b.jpg)
![](../images/guitar resize/walnut 50 watt_top.jpg)
![](../images/guitar resize/walnut 50 watt_front.jpg)
![](../images/guitar resize/walnut 50 watt_left_side.jpg)
![](../images/guitar resize/walnut 50 watt_side.jpg)
![](../images/guitar resize/walnut 50 watt_back.jpg)
7. A 50 watt push-pull 2 channel footswitchable head with externally adjustable fixed bias,
effects loop, channels and master volume,
currently running a Sovtek 5AR4 rectifier, 2 JJ E 34L power tubes and 5 JJ ECC83 S preamp tubes, selectable tube or diode rectifier,
Walnut and Maple half-blind dovetail cabinet, zebrawood face plate.
![](../images/guitar resize/newest 50 watt front .jpg)
![](../images/guitar resize/newest 50 watt front 2 .jpg)
![](../images/guitar resize/newest 50 watt right side.jpg)
![](../images/guitar resize/newest 50 watt left side2.jpg)
![](../images/guitar resize/newest 50 watt left side.jpg)
![](../images/guitar resize/newest 50 watt back.jpg)
8. A 20 watt class A push- pull amp that has some unusual features and an experimental all pentode preamp design of my own
that works great!
Preamp tubes are 5654, 6BH6, 6BH6 - Effects loop tube Decca Radar A2900 (British) - Phase inverter tube JJ ECC 83S -
Power tubes -6AQ5W's or 12AB5's
First switch on left is screen grid bypass capacitor on/off, Knobs from left to right are : 1 preamp gain,
2 triode/ultralinear/pentode operation of tube #1, 3 bass, 4 shift,
5 treble, 6 master vol., 7 effects loop gain, 8 phase inverter gain, last two switches are standby and power.
![](../images/guitar resize/Pentode 2.jpg)
![](../images/guitar resize/pentode 3.jpg)
9. A pair of tube guitar amps built from recycled computer power supply enclosures,
transformers from old wall-wart cell phone chargers etc..., and 50's -60's tubes!!
The one on the left uses a 6AQ5 power tube, putting out 10 watts,
the one on the right uses a 6AK6, putting out about 2 watts,
both use 6AK5 and 6BH6 preamp tubes.
Both have a front mounted input jack, master volume on the left and a preamp gain on the right,
and rear mounted output jack, power switch, and power in.
Video of playing this amp.
![](../images/guitar resize/Wall-Wart Amp 2.jpg)
![](../images/guitar resize/Wall-Wart Amp 1.jpg)
![](../images/guitar resize/Wall-Wart Amp 3.jpg)
![](../images/guitar resize/Wall-Wart Amp 4.jpg)
10. A class A SE 10 watt combo based on theVibro Champ / Silvertone 10XL circuit. No negative feedback is used and the tone stack is footswitchable in/out, as is the tremolo. JJ EL84 power tube, 2 JJ ECC 83S preamp tubes, 8 inch Jensen speaker, mahogany 3/4" plywood and tolex cabinet.
![](../images/guitar resize/Andrew's Combo front.jpg)
![](../images/guitar resize/Andrew's Combo back.jpg)
11. My idea with this project was to put together from scratch a workable TUBE guitar amp with mostly scrap that nobody wanted anymore.
You can build a tube guitar amp into almost any package that one desires with only moderate space considerations,
albeit more than a solid state amp would need. So the sky is the limit with what you want the amp to actually look like.
This amp is incredibly easy to build, being only a single ended class A, a 12AB5 power tube and a 2 tube 6AK5 preamp.
Video of building and playing this amp.
The schematic and instructional video are also available here.
![](../images/guitar resize/Cigar Box Amp b.jpg)
![](../images/guitar resize/Cigar Box Amp a.jpg)
12. Class A SE 5 watt Gurkha cigar box amp, 12ax7 preamp, 6V6 power tube.
![](../images/guitar resize/Gurkha Front.jpg)
![](../images/guitar resize/Gurkha Back.jpg)
All images and text ©2021 Andrew Hanrahan