Cheap Deacy Amp Output Transformer

[mac]

I found a cheap, easy to get output transformer for all you Deacy lovers:
A multi voltage converter 110v-220v AC to 1.5v-3v-4.5v-6v-7.5v-9v-12v DC





Wiring is easy:
A
0v to Q1 collector
1.5v to speaker/4k7 to Q1 base
4.5v to GND (PNP) or 9v (NPN)
7.5v to speaker/4k7 to Q2 base
9v to Q2 collector

B
0v to Q1 collector
3v to speaker/4k7 to Q1 base
6v to GND (PNP) or 9v (NPN)
9v to speaker/4k7 to Q2 base
12v to Q2 collector

C
0v to Q1 collector
1.5v to speaker/4k7 to Q1 base
3v to GND (PNP) or 9v (NPN)
4.5v to speaker/4k7 to Q2 base
6v to Q2 collector

The primary can be used, with some tweaking, as the feedback path to the base of the driver AC126.

A is closer to DC specs
Resistance between pins in mine are similar to those in the PR80 datasheet, 3ohms or so.
And the number of turns are enough for low response.
Dc voltage across the speaker is very low.

Xicon 42TU011 or 42TM011 look like good driver transformers.

https://www.diystompboxes.com/smfforum/index.php?topic=38129.msg1248467#msg1248467

And if you want to build a 12AU7 or 12AX7 push pull amp you can use the primary for the tubes and the secondary for speakers 

mac