[Alan Small]

this old cabinet is in great shape and will look fine in someones guitar room.

it has a 12" baffle size and measures 20" wide x 40" tall

 

[Alan Small]

this chassis is an svt 3 pro that is gutted and parts sent to @Always12AM for his pedal builds.

the toroidal main secondary is [email protected] 1A and i will use a voltage tripler to reach a useable supply for a 6V6 or similar power section with volume and tone circuit.

 

[Mark Brown]

So this voltage tripler I assume gets you from 120V @ 1A to 360V @ 330mA ?

Also, that looks like it is going to be fun!

 

[Lincoln]

That is one cool looking cabinet in amazing condition! Someone's gonna get lucky.

 

[Alan Small]

So this voltage tripler I assume gets you from 120V @ 1A to 360V @ 330mA ?

Also, that looks like it is going to be fun!

it is not as cut and dry as we would like the calculations to be...there will exponential losses at each stage which i may make up for with a quadrupler in place of a tripler and the load of the entire amp will pull down the end voltage too

...i may draw 120mA(push pull el84 plus 2 x 12_X7) in the circuit and the 1A tranny will handle this: in theory

my endgame is 300v fully operating

it is a simple and cheap trial in any event....i will revert to a design specific tranny if this madness does not provide fruit

 

[Mark Brown]

it is not as cut and dry as we would like the calculations to be...there will exponential losses at each stage which i may make up for with a quadrupler in place of a tripler and the load of the entire amp will pull down the end voltage too

...i may draw 120mA(push pull el84 plus 2 x 12_X7) in the circuit and the 1A tranny will handle this: in theory

my endgame is 300v fully operating

it is a simple and cheap trial in any event....i will revert to a design specific tranny if this madness does not provide fruit

Sounds feasible to me.

I was mostly just trying to see if my thinking was right. Voltage multiplication at the loss of amperage.

I support your madness Alan because I too am silly enough to manufacture a solution for a problem that does not exist and I truly appreciate your style and commitment.

 

[Alan Small]

That is one cool looking cabinet in amazing condition! Someone's gonna get lucky.

thanks...
several people may "get lucky"; me when the extra furniture is complete and out of the hallway my gal will "thank" me(hopeful); the new owner will have a proper place for it to be appreciated and he or she will play romantic songs and receive "thanks" too!

if any have an interest the cost is materials only and usually runs around 400 to 600 with the speaker, often, being the largest factor

 

[Alan Small]

Sounds feasible to me.

I was mostly just trying to see if my thinking was right. Voltage multiplication at the loss of amperage.

I support your madness Alan because I too am silly enough to manufacture a solution for a problem that does not exist and I truly appreciate your style and commitment.

if i am way out to lunch in my hillbilly thinking it wont succeed and someone here will help adjust "the plan": always with a thank you from me and others who are learning("what is and what should never be"...r. plant)

 

[Paul Running]

voltage tripler

 

[Alan Small]

View attachment 464440

yes please and thanks!

 

[Milkman]

The cabinet is gorgeous and I think well worth the effort and cost you're putting into it.

I'm excited to see and hear the end results.

Thanks for posting.

 

[Paul Running]

Some info for voltage-multipliers.

 

[Alan Small]

Some info for voltage-multipliers.

 

[Alan Small]

3.8: Voltage Multipliers (Doublers, Triplers, Quadruplers, and More)

A voltage multiplier is a specialized rectifier circuit producing an output which is theoretically an integer times the AC peak input, for example, 2, 3, or 4 times the AC peak input. Thus, it is …

workforce.libretexts.org

https://www.allaboutcircuits.com/textbook/semiconductors/chpt-3/voltage-multipliers/

 

[Alan Small]

I discover the capacitors required to safely utilize the toroidal tranny and voltage tripler circuit are more expense than planned...

I will pass the toroid on to any who want it and employ a standard 660vct, 6.3v 4a power transformer

 

[Milkman]

Is this amp going to be offered for sale here?

I can imagine that cabinet in my home.....

 

[Alan Small]

Is this amp going to be offered for sale here?

I can imagine that cabinet in my home.....

with your wife's permission😊
and yes , each of my projects goes to a new home for the cost of parts

 

[Milkman]

with your wife's permission😊
and yes , each of my projects goes to a new home for the cost of parts

Well, you have my attention, LOL.

 

[Alan Small]

Well, you have my attention, LOL.

you do some building and I will be in need of a neck or two for my purple heart slabs...trades are always pleasant

 

[Milkman]

you do some building and I will be in need of a neck or two for my purple heart slabs...trades are always pleasant

Well, I'm happy to have that discussion when the time comes. In the meantime, I'll enjoy seeing this amp take shape.