[vecher]

OK, The field coil is open It supposed to be 650 Ohms .. Stampeded on speaker.. The 767 ohms is the primary of the output Transformer.. The secondary of output transformer measures .2 ohms..

So since I cannot get or rewind the Field coil I am replacing it with a 650 Ohm 50 Watt resistor..But I also have to change speaker.. I found a Speaker from a Motorola radio that measures 3.2 Ohms that fits perfect in cabinet. So I need a output Transformer to match the Dual 47 Tubes to the 3.2 ohm Speaker..


The 767 Ohms doesn't seem right but that's what I measure,.. They get the B+ to the 47's by using the Center tap of the primary of the output Transformer..

PS Schematic of course doesn't give any values..

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