Fluke 8012A update. ALL of the damn electrolytics have spewed their guts on the board. Major cleanup. Surprised it even came up.
Been working on the Technics amp tonight and I have no idea what I was doing / thinking last night, must have been distracted or someit , pulled the main board out and checked all tracks for bridges, could I see any, nah.
Refitted it and powered up without speakers this , connected 4 meters up (internally this time) and checked to see if the 36V was being switched by the AB speaker switch and darn it, it was so WTF did I not spot that last night???
Got a 5th meter and probed the main amp IC pins to see if there was an internal short when powered, and bugger it, there was (you were 100% bang on menmenth) the right hand channel was instantly raised to 36V, left channel, not a problem.
New power amp IC on order, just got to wait for that slow boat to come now. Arh well onto the next item in line for the bench, an Aiwa XR-M500 whose CD player skips on tracks 1 and 2 and the tape drive doesn't work, otherwise performs really well.
"Oh, NUTS! Now, where'd my frequency counter go?"
You remembered! I feel honoured.
Still looking for the flipping thing. I kept it in a cardboard box - one of several I had used to containerise all the smaller stuff. It should be with the others ... but I haven found it yet. Still annoyed about that.
PS A vote for NUTS. Not sure about MET as yet.
A quick heads-up... something that just blew me away.... I found and ordered one on AliExpress for $6.57 and got a $2 coupon since I hadn't ordered anything in a while. So, $4.57 with free shipping. Woot!
Let us know how you like them; and how you feel about the comfort vs sound quality.
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Also let us know how the controls work, and on what breeds of phone you've had a chance to try them.
"Oh, NUTS! Now, where'd my frequency counter go?"You remembered! I feel honoured. Still looking for the flipping thing. I kept it in a cardboard box - one of several I had used to containerise all the smaller stuff. It should be with the others ... but I haven found it yet. Still annoyed about that.You have my sympathies. Hope it turns up before you go bonkers.QuotePS A vote for NUTS. Not sure about MET as yet.Looks like NUTS is going to win.
My mother was a calculator for a bit (true story!)
I am seriously tempted by one of these bad boys from Swiss Micros:
Nasty. No stonking great big DC blocking cap I bet either!
8012A power supply and caps done. Didn't notice it was a bit slow to start up initially. Turns out bad caps!
....snip...
And I'm off to bed now. Display replacement tomorrow!
Oh, that would annoy me too.
I'd be inclined to move it to the back to keep it more "out of sight" - but it will never be "out of mind" until you find a replacement.
Since it looks to be in reasonable condition, I would put up with it if it checks out OK.
I didn't have a 120 ohm resistor or I would have used 120+150. Since taking this photo I've added a small run of epoxy on the bottom of the board to support the floating resistors better.
I didn't have a 120 ohm resistor or I would have used 120+150. Since taking this photo I've added a small run of epoxy on the bottom of the board to support the floating resistors better.
I can't believe that. You're building electronics gadgets by the dozen and repair stuff frequently, yet you do not have a 120 Ω resistor? Seriously, I never thought anybody posting here wouldn't have at least a complete E6 series of resistors from 10 Ω to 1 MΩ.
But then, 240 Ω saves a wee bit of current.
Don't forget you promised me pictures of the ugly display surgery.
No TEA here this weekend. The lady is here, currently sleeping and I'm sneaking some time on the computer. She's still sore from the fight incident on Wednesday but recovering nicely. Tomorrow (Saturday) will be a busy day taking her shopping.
Late, as usual, here's my contribution to the Tower of Flukes exhibition. Non of the highly esteemed ones (its 'mass instead of class'). And my 75 is on permanent loan at a friend.
Late, as usual, here's my contribution to the Tower of Flukes exhibition. Non of the highly esteemed ones (its 'mass instead of class'). And my 75 is on permanent loan at a friend.
Holy shitballs! I think the IEC leads for that pile would cost more than my entire collection of flukes!
That's only because you changed your reference from 25 to 50 and you've fallen into the scale doubler trap.