output transformer wiring questions

dast · Post by **dast** » Sun Mar 18, 2007 1:04 am

hi,
a few questions regarding the wiring from power tubes to output transformer.
Am I correct in thinking the wires from tubes to OT are low current, high voltage and the wires from OT to speakers are high current low voltage?

Second, is it ok to twist the wires from output tubes to the OT? Would this have any reduction in hum, etc... or just be pretty?

thanks,
Dave

novosibir · Post by **novosibir** » Sun Mar 18, 2007 8:46 am

You should twist the secondaries with the ground wires included and the primary wires w/o the center wire, to minimize their inductice strayfield around it - to minimize crosstalk into other higher sensitive areas of your layout - to avoid power stage oscillation!

That't one of the basical laws in building proper working tube amps!

Larry

dast · Post by **dast** » Thu Mar 22, 2007 11:32 pm

thanks Larry,
it took me a bit, but I see what you mean.
thanks for the response.
Dave