On 7/29/19 10:30 PM, Jim Brain via cctalk wrote: > On 7/29/2019 9:24 PM, allison via cctalk wrote: >> >> Since you replaced the batteries did you check the fuse? > Yep, good.
THe batteries are charged? (about 6.6V or more full charge) >> Also the 4066s > Hmm, all mine are soldered in. Do you suggest I desolder and check? >> sometimes get cranky and/or the sockets. > Only one '00 has a socket. Check only socketed devices. Do not desolder unless you have good reason to believe the part is bad. Hint check for 5-6V on the power pins of the ICs. IF you have the manual, check for all the voltages. >> >> The tough fail would be the CRT. Check the heater pins with a multimeter >> to see if its open (unplug it as there is a transformer winding across >> it). > I'll check. >> Mine needed one when I got it but they were available then (1977) >> from NLS. Side effect of the hammer mechanic owner. Now it would be a >> hunt though old tube brokers. > Yep, I know that'd be the main issue, but I am hopeful it's something > less problematic. The only problem with the CRT is finding a replacement. THey may be more common than thought. Haven't checked in decades. Allison