The transformer is for a pair of 6CA7/EL34 tubes. Sorry I don't have a matched set of these.
One is GE, the other is Groove Tube. The driver board uses a pair of 12AU7 tubes (USA made tubes, included). It has output taps for 4, 8 or 16 Ohms. All passive parts employed are fresh parts. NO OTHERS WILL BE RECEIVED.
The item "My Own Home Brew Dynaco Mark III Monoblock Amp, Modern Driver Board and Tubes" is in sale since Thursday, January 16, 2020. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps". The seller is "dukeshifi" and is located in Saint Paul, Minnesota. This item can be shipped worldwide.