21-04-2011, 03:08 PM
It's even odder than that. I've got two of those testers so I tried the good 555 in the damaged one to make sure that it was that that had blown. It then worked OK and, most oddly, the 'Damaged' one works in the other tester but not the one I'd used as a sig gen. There must be something very odd in the electronic lay-lines 'round here.
I've tried connecting an expendable trannie through the Pilot and that survived and sounded surprisingly good.
I'll investigate more later and am hoping it isn't one of the coils that's gone as the resistors I'd replaced were so wide of their correct values that they may have had stupid voltages applied to them.
It was also interesting to see the brilliance of the dial lamp vary as it warmed up and how it also had that 'Half-wave Flicker'.
I think I'll be going for AC/DC sets in future as they seem a sight more co-operative.
Thanks for the advice.
Joe
I've tried connecting an expendable trannie through the Pilot and that survived and sounded surprisingly good.
I'll investigate more later and am hoping it isn't one of the coils that's gone as the resistors I'd replaced were so wide of their correct values that they may have had stupid voltages applied to them.
It was also interesting to see the brilliance of the dial lamp vary as it warmed up and how it also had that 'Half-wave Flicker'.
I think I'll be going for AC/DC sets in future as they seem a sight more co-operative.
Thanks for the advice.
Joe
