Back-To-Back Power Transformers

[TIMBO]

Hey guys,
At the local electronics store an can get some low voltage transformers cheap.
They are versatile with their multi tap secondary's
Putting them back to back I can get a 240v HT or other voltages with connecting the secondary taps of different voltages.
The main power transformer has a 6.3v at 1A which great for one 6V6 and 12AX7 and a bit spare for the HT.

I would usually tie one side of the wiring to ground, works well.
In the above drawing I have added an artificial CT via two 220 ohm resistors.
IS thid OK to do???
Or even better tie the two resistors to the 6V6 cathode.

[Willabe]

Hey guys,
At the local electronics store an can get some low voltage transformers cheap.
They are versatile with their multi tap secondary's
Putting them back to back I can get a 240v HT or other voltages with connecting the secondary taps of different voltages.
The main power transformer has a 6.3v at 1A which great for one 6V6 and 12AX7 and a bit spare for the HT.

I would usually tie one side of the wiring to ground, works well.
In the above drawing I have added an artificial CT via two 220 ohm resistors.
IS thid OK to do???
Or even better tie the two resistors to the 6V6 cathode.

.

[TIMBO]

.



Toilet paper shortage now ink 
Thanks Willabe

[shooter]

 
it's invisible, just pour lemon juice on your monitor to see it
we have plenty of TP now, it's just 100% more to buy

[glass54]

Hi Timbo
Done it many times for small combos but especially for 1RU preamps. In the case of Preamps I've used a 15VA 12.6V tx for input (Heaters) and a 5 to 7VA Tx reversed for HT.
Regards
Mirek

[TIMBO]

Thanks guys, The guys here gave it the nod as well

[kagliostro]

Ciao TIMBO

Back-To-Back Power Transformers is the title of this thread

so, may be you are interested on this (I developed it some time ago with a friend)

Franco

[TIMBO]

Thanks mate, That's good to know.
I like the -30 for a bias supply.
Thanks

[Willabe]

.

Toilet paper shortage now ink 
Thanks Willabe

I was just giving it a