12A6 Healthkit A7 Amp

[PRNDL]

here's the post

In a fit of tube fever, I purchased a Healthkit A7 amp that uses a pair of 12A6 beam tetrodes, along with other unusual tubes 5Y3 x1, 12SQ7 x1, 12SN7 x1, 12SL7 x1.

The 12A6 appears to be low power (6 watts in ultralinear) and is very inexpensive ($2-5 each, from what I've seen).

My original idea was to see how they sound for guitar, with the intention of making an inexpensive low-power push-pull guitar amp.

I'm wondering if this migh yield fruit for a guitar amp, or was delerious with tube DIY fever.

Any comments/suggestions/therapy will be greatly appreciated.

12A6 beam tetrode

Heater voltage 12.6V
Heater current 150mA
Max anode voltage 250V
Max screen voltage 250V
Max anode dissipation 7.5W
Max screen dissipation 1.5W

 

[Trout]

Hey,

I believe I have the assembly manual, and a partially stripped chassis for that amp. If you need a schematic, I could possibly scan it and send it over if needed.( I just have to figure out which box I stored it in.)

I also have the output transformer, I save everything 😀
Mine had been modded by the original builder, whom was not exactly handy with a solder iron. Lots of bad joints Ect plus he had messed up the faceplate.

It was garage sale find $5.00

Trout

 

[adalin]

I got one exactly the same 🙂 give this to me and I got stereo 😀

 

[mhouston]

Hey,

I believe I have the assembly manual, and a partially stripped chassis for that amp. If you need a schematic, I could possibly scan it and send it over if needed.( I just have to figure out which box I stored it in.)

I also have the output transformer, I save everything 😀
Mine had been modded by the original builder, whom was not exactly handy with a solder iron. Lots of bad joints Ect plus he had messed up the faceplate.

It was garage sale find $5.00

Trout

Do have the schematic please. I have a tube.