[JMS] 90801 help

w5sum [email protected]
Fri, 19 Dec 2003 09:20:13 -0500


well I have become the proud father of a fairly nice 90801. I plan on using 
this for a driver for a 813/805 homebrew rig.
all I have is a schematic and there is a might of confusion here.

There are two terminal strips on back. TB-1 and TB-2

the schemtic  shows TB1 to have ground, -, 6.3v, 1(???), LV and HV. I think I 
can figure out those voltages for a 6146. I would like to know what the 
terminal marked I or 1 is for?

Now.. TB-2   what goes here? I see where it is marked 5763 C-, Screen 
resistor, screen, 6146 cathode and 5763 cathode, then ground.

HOW does one hook everything up to this?

I have a power transformer that is 800V centertapped that should give me what 
I need, though maybe lower B+ than I would like, but it will suffice. All I 
will need is perhaps 20 watts of drive for the Class C 813's

hep me hep me

Everyone have a very Happy and Safe Holiday Season

Thanks in advance

Ronnie - W5SUM

The "AM" voice of Shreveport, Louisiana USA
formerly WN5AIA and WB5AIA
I got my Extra Class the old fashioned way... I earned it!