On 9/12/06, Don Merz <[EMAIL PROTECTED]> wrote:
The final deck has a socket for a single tube with the large, twist-lock base and 2 plate-cap-size connections for plate and grid caps. Not many tubes fit that description, so I am thinking maybe an 810 goes there? The Eimac tubes are out because they used a pin for the grid--not a full-size plate cap. The final deck has a filament transformer (I haven't
Don, Determine the filament voltage. Also, was the bias supply for the final in the power supply section that's missing? If not, what does the voltage appear to be on it? This would help narrow down a final tube. The Eimac tubes above the 250T (450 up) used the standard .5" grid and plate caps. The 450T had both the pin and a .5" cap on the grid. GE also made some Eimac like triodes such as the GE806 which was a close cousin to the 250T only it had .5" caps on the grid and plate. Of course there are other possibilities like Taylor, etc. Brian / w5ami ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
