It’s always sad when you see that one of your most carefully crafted fixes no longer works.
Even my amusing low grade British swearing has ceased to have an effect and everyone’s overflowing the recycling bin again!
For a while I’ve wanted one of those Simpson multimeters like we have at work, with the big needle analog meter…
Today I found something a little neater. Someone set one of those Harbor Crack multimeters down on top of it and I laughed and groaned at them all at once.
The gunk on the faceplate cleans off easily. Now I just need to make up new test leads and it’ll be good to go.
The meter has a hilarious ballistic to it. It’s not entirely undamped, but it basically overshoots the reading once then drifts back down onto it. I’m guessing that’s the result of the armature coil being a bit heavier than usual from all the turns to make it… super sensitive.
On a side note I’m looking at the schematic and there’s no diode to rectify AC to DC for the meter… This means the meter must actually have a field winding for AC measurement and thus, by design, it’s true RMS! Not bad at all for a meter made in 1948.
Yesterday the two translators on 93.5, the one in downtown Miami and the one that used to carry “The Bull” up towards Davie, were both set to carry Revolution Radio.
This morning, it’s playing emo!
Oh well. I liked you while you lasted.
Incidentally, it was the gradually increasing amount of emo in the playlist that was used to chase off the listeners from 94.9 Zeta back in the day…
Breaking news near Downtown Miami! Okay, we’re good here, just tell the live truck to send us a signal on one of our ENG channels to the downtown repeater aaaaaaand… BLITHERFART!!! WHAT IS THAT?! Our truck’s signal gets smashed, and there are No Excuses On ‘Da Bowl!
Someone else’s live truck is feeding a tape from hours earlier on the day. Spin the receiver around a bit and it’s clear that they’re aimed at the same receiver site or thereabouts. The station responsible has a receiver up there too, I believe.
Okay, so let’s see. How many people had to FAIL to accomplish this?
1. The studio ENG operator. The studio ENG operator would have been the one responsible for directing the truck to use this channel; or, they would have been able to tell the truck, hey, change channel, we ain’t down with O P C. (Other People’s Channels)
2. The truck’s crew. They should have also known better.
They continued to send the footage from tape for a couple minutes then just sent black for a while after that before *finally* coming down….. after any hope of us getting our shot waned. Fortunately, the story turned out to be a total non-event. But still, FAILURE.
The station responsible called us and apologized so I won’t yell at them specifically here, but come on— don’t just grab someone else’s channel, and at least, not without asking nicely first! News happens, man!
I have a thing for hand drawn traces.
This is on a Shure M267 mixer. I’ve seen at least three different variations on this same mixer. The one I’ve got at home contains only one transformer, at the output. This one contains five.
“Vactrol” style lighted photocell in optical limiter circuit. The audio envelope is detected, amplified, passed through a slow filter and applied as a bias voltage to adjust the light brightness. The photocell half of the device is used as a variable attenuator to back the volume down as needed to prevent clipping.
These devices are also commonly used in DJ mixers.
Oh gee I wonder why your pan and tilt motors were losing torque?
(And I wonder who applied that much grease in there? Holy goobers.)
That’s the before…
And the after.
The motor is a Swiss made Maxon and has lots of life left in it, I just carefully de-melted-rubbered and degreased the pulley awaiting a new belt.
Sometimes high tech problems have low tech solutions.
There we have it…
The circuit breakers have already tripped as the stock markets have quickly and surely begun to crash. We now have a truly one sided system of government shared between the batshit crazy and the super rich, with no remaining checks and balances that will be of any use to anyone.
And we never got those cookies from downstairs.