Recommended transformers for KIT 2

The transformers here do not need to be 25 Watt,  since 6550 in Single Ended mode will give only 8 Watt.

Good transformers are

Lundahl LL1664/80mA    10Watt  Maximum  Output 8 Ohms only.  

Lundahl LL1627/90mA    13Watt  Maximum  at 2k3.  Output 4-8-16 Ohms.  

Lundahl LL1627AM/90mA    13Watt  Maximum  at 2k3.  Output 4-8-16 Ohms.  Amorphous transformer

Recommended tubes ECC82 MUST BE BALANCED TYPE, since two systems are in series.
For instance 12AU7-EH-GB is a good choice, or any other tube balanced with good
testers like L3-3 or Amplitrex.