pix of Custom built guitar amps/cabs

[deadastronaut]

hello squirrel .....nice builds guys.

typing in my ''living room'' uk...

[bluebunny]

(salon, for you non-Americans)

"Salon" is where I get my hair done.

If I had any...   

[Ben N]

An adaptation I had to make when I moved to Israel. I just assumed it must be universal outside the US, like "aluminium".

[kaycee]

Noisy Cricket amp in a replica of a Roberts Transistor Radio casing made from MDF. This is my bench and practice amp. I've just stripped it and replaced the pots and given it a new coat of paint and copper control plate.

I had bought an old Roberts Radio with the intention of putting a Murder 1 sub mini valve amp in it, but didn't really like the amp that much. The radio was tatty, so I had intended to recover it, but it fell apart as I stripped it, so I copied the dimensions in MDF. Then made a Cricket to go in it, this was well over a decade ago.

[stallik]

It's December. The 6l6GC in my 4 watt blue plated again. That's confirmation of a 12 month lifespan. (3 years on the trot)
Interestingly, my normally pop free pedals started popping for a couple of days prior to the failure. New tube, they're all quiet again

[amptramp]

It's December. The 6l6GC in my 4 watt blue plated again. That's confirmation of a 12 month lifespan. (3 years on the trot)
Interestingly, my normally pop free pedals started popping for a couple of days prior to the failure. New tube, they're all quiet again

The sun is in Scorpio.  The moon is in Aquarius.  Mercury is in Scorpio.  Venus is in Capricorn.  Mars is in Scorpio.  Jupiter is in Aquarius.  Saturn is in Aquariius.  Uranus is in Taurus.  Neptune is in Pisces.  Pluto is in  Capricorn.  What did you think was going to happen?

[Jarno]

Didn't realise there is a thread for this, I'll play





One is a 1x12 guitar cabinet out of pine
One is a 1x8 bass cabinet out of oak

Both are dovetailed, 12" cab has corner miters on the front.

[tubelectron]

I also have amp build projects... But it lags, lags, lags... 

With some others, this one is still sleeping :



In the small department, my Radio-Tone has a new advertising career for py part time amp repair job as a business card display :





In the big department, my Serial Tone Killer is now finished and operational... Not less than five years later its inception :



















Lagging, did you say ? 

A+!

[ElectricDruid]

I love the Foot Witch, and the aux 9VDC outputs. Very handy. Also the Holy-Grail-as-reverb-tank is a nice touch!

Fantastic work. The amount of wiring in there would drive me totally loopy.

[tubelectron]

Thanks @electricDruid ! 

Yes, "Foot Witch" is an unintentional mistake : it's an unseen typing error... But OK : the signification is funny instead of serious ! 

The inconvenient of the Serial Tone Killer is his weight : circa 32kg in carrying order, that is to say with cables, FSW, cover.

At the start, I designed it with a toroidal power transformer, but had to return to the classic EI transformer which proves to be much more silent without much less hum and buzz radiations than the toroidal models that I tested, even encapsulated and shielded.

The "wings"  added around the power transformer are magnetic shields to kill remaining 50Hz radiation along the main magnetic direction.

The original idea was to save weight by using a toroidal PT and a Neodymium loudspeaker. This ended to be an EI transformer (5.5kg) and an EVM12L from 1980 (9kg)...

A+!

[ThermionicScott]

It's December. The 6l6GC in my 4 watt blue plated again. That's confirmation of a 12 month lifespan. (3 years on the trot)
Interestingly, my normally pop free pedals started popping for a couple of days prior to the failure. New tube, they're all quiet again

Bummer!  What voltages are you getting, all around?  I'm curious if a bad coupling cap or grid-leak resistor is to blame.

The WF-55 circult looks like it should be really easy on tubes.

[bluebunny]

I love the Foot Witch . . .

I think it could be intentional, Tom, because it doesn't matter witch (sic) foot you want to use.   

[stallik]

It's December. The 6l6GC in my 4 watt blue plated again. That's confirmation of a 12 month lifespan. (3 years on the trot)
Interestingly, my normally pop free pedals started popping for a couple of days prior to the failure. New tube, they're all quiet again

Bummer!  What voltages are you getting, all around?  I'm curious if a bad coupling cap or grid-leak resistor is to blame.

The WF-55 circult looks like it should be really easy on tubes.

Hi Scott, I'm pretty sure that it's all down to the value of the power valve cathode resistor. I'm using a 6L6 and when I built the amp, I could really hear the difference at the 'just breaking up' point when lowering the resistor (R9) value from 470R to 270R
Cathode and plate current were a bit high but plate dissipation sensible so I've left it like that. When the valve died at the end of last year confirming the 1 year life expectancy, I re-auditioned the cathode resistor value and realised my ears can no longer detect the differences I was hearing originally (don't get old!). So, I've raised the value (360R was all I had in 2W) and I'm expecting the valve to last a bit longer this time.

[Ben N]

I love the Foot Witch, and the aux 9VDC outputs. Very handy. Also the Holy-Grail-as-reverb-tank is a nice touch!

Does it float?

[tubelectron]

I love the Foot Witch, and the aux 9VDC outputs. Very handy. Also the Holy-Grail-as-reverb-tank is a nice touch!

Does it float?

A ton avis ?

[ThermionicScott]

Hi Scott, I'm pretty sure that it's all down to the value of the power valve cathode resistor. I'm using a 6L6 and when I built the amp, I could really hear the difference at the 'just breaking up' point when lowering the resistor (R9) value from 470R to 270R
Cathode and plate current were a bit high but plate dissipation sensible so I've left it like that. When the valve died at the end of last year confirming the 1 year life expectancy, I re-auditioned the cathode resistor value and realised my ears can no longer detect the differences I was hearing originally (don't get old!). So, I've raised the value (360R was all I had in 2W) and I'm expecting the valve to last a bit longer this time.

Ah, okay.  Next time you're in there, measure the 6L6 grid voltage for me.  I'm curious...

[vigilante397]

Does it float?

Well I mean, if it weighs the same as a duck, then clearly it's made of wood.

[Ben N]

Does it float?

Well I mean, if it weighs the same as a duck, then clearly it's made of wood.

So quoteth Sir Bedevere the Wise.

[thomasha]

Small 1W orange style amplifier with 12au7 in PP in a 1590N1 box:



Cheers

[rankot]

Small 1W orange style amplifier with 12au7 in PP in a 1590N1 box:

What kind of OT did you use? I was thinking of making similar amp, but wasn't sure where to get an OT.