Hi, It is really a SD6053, I have a SD6052 and using external 1MHz still running OK. Bought about 15 Years ago as inop and found 500MHz range was bad... also installed a "missing" 9th digit nixi tubes and the driver IC and ever since it is my favorites.. The 6052 main board has all the IC installed for the 9th digit, except the tube and the driver IC.
Rgds Ernie. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
