[Boatanchors] [BoatAnchors] Specs Needed - CK-1005, 1006 & 1007

[WA5CAB--- via Boatanchors]

Again, thanks to everyone who sent me specs, links or manuals.

I thought I should mention, however, that the heater specs for the CK1006 
in Sibley/Tube Lore do not agree with what's in the actual Ratheon handbooks. 
 Sibley says 2.5V/2.0A.  Ratheon says either cold cathode (0V/0A) or 
1.75V/2.0A.  To operate the tubes cold cathode, there is a specified absolute 
minimun striking voltage and an absolute minimum load current.  

The reason I needed the information is that someone I know has several 
PE-237 vibrator power supplies made on various Orders between 1944 and 1951 for 
either SCR-694-C (BC-1306) or AN/GRC-9 (RT-77(*)/GRC-9).  He is trying to 
get some of them working.  In several editions of the TM's over the period 
1944-1956, the schematics vary.  Some show a rectifier filament transformer 
winding for the 1006 and some show no connection to its pin 1.  Until I 
discovered that the tube could be operated cold cathode, we were looking at having 
to tear into the units to correct what looked like an error in the 
schematic.

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480