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voltage information [message #24259] Sun, 27 December 2015 10:09 Go to next message
scrap is currently offline  scrap
Messages: 12
Registered: December 2015
Location: Florida
Junior Member
replaced all caps on tube driver board. no heater voltage from power transformer. schematic is vague on voltages concerning this item. the transformer has two primary windings one with center tap. I'm led to believe these are for domestic or European line voltages. it has five secondary windings. one is +15/-15vdc to power the pre-amp, one is 6.3vac for the tube heaters, one is 450vdc for B+ voltage to the plates, one is 400vdc for the screen grids and the fifth is 300vdc? for bias voltage?? I've looked all over the net for one of these transformers and the company that manufactured them (cin-tran) was bought by standex international in 2001 does not produce them anymore. I will probably have the transformer re-wound by weber or mercury but I will have to supply them the voltage requirements. anyone who can confirm the above values would be greatly appreciated. thank you, scrap.

have a good time all the time.
Re: voltage information [message #24262 is a reply to message #24259] Mon, 28 December 2015 08:21 Go to previous messageGo to next message
carlc is currently offline  carlc
Messages: 143
Registered: July 2006
Location: Summerville, SC
Senior Member
I think you need to put this in the "repair" section. I'm sure you'll get some help.
Re: voltage information [message #24263 is a reply to message #24262] Mon, 28 December 2015 08:29 Go to previous message
scrap is currently offline  scrap
Messages: 12
Registered: December 2015
Location: Florida
Junior Member
thank you

have a good time all the time.
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