I managed to get a NIB BC-454-B for pretty cheap. I decided to keep
it 100% original, so I put a Dynamotor on it and cobbled up a 28VDC
supply. Works great as a WWV monitor.

I've never run a dynamotor this long before. The question is: What is
the proper running temperature for these small dynamotors? Seems quite
hot. (Yes, I repacked the bearings).

I have another dynamotor, not for the BC-454, that says "50C continuous
operation" Is that how hot it gets or is that its expected ambient.

TIA.

Steve.
--
Steven D. Swift, , http://www.novatech-instr.com
NOVATECH INSTRUMENTS, INC. P.O. Box 55997
206.301.8986, fax 206.363.4367 Seattle, Washington 98155 USA