[sci.electronics] Need manual for Boonton RX Meter & 4B31 Vacuum Tube

owens@stout.ucar.edu (Chip Owens) (04/07/89)

			*******HELP!*******             6 April '89

Need equipment manual for:      Boonton Radio Corporation
__________________________	Model 250-A  RX Meter
				serial# 2076
		
This is an older version of the HP 250B RX Meter but uses vacuum tubes
and the HP 250B manual does not apply. Would like to buy manual or
borrow to photocopy. Alternately, a known source for the manual would
be helpful.	 

Need data for:			JAN-CRP-4B31 vacuum tube
______________

This is a large, 6.5"long X 2.75" O.D., tube with a 4-pin base and an
anode connection on the top of the envelope. Need operating specs.
	 		
Please email; or snail-mail to:  	Chip Owens NW0O
					NCAR PO Box 3000
					Boulder, Co. 80307-3000
					303-497-8804