Batboard

I have an R2001B that works fine. I would like to know if anyone has the proper CRT number (3ap1, 3bp1, whatever) or knows where one could be obtained as a backup. I saw in RepeaterBuilder the manual for an R2001A and downloaded it but the only number for the CRT there (and perhaps it is not even the same tube type as the R2001B) is a Motorola part number, not a "standard" CRT tube number. Any of you gurus out there got any answers to the number and availability questions? Thanks to all for reading.

Thanks for the pointer. I did do a search, but I guess my search argument was not good enough. Now, onward into the 'ether' to try to find one. Thanks again. Great bunch of people on Batlabs.