Dr. Z Maz Sr. with VERY light reverb

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Leo_Gnardo
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Re: Dr. Z Maz Sr. with VERY light reverb

Post by Leo_Gnardo »

didit wrote:
eddie25 wrote:in is 217 ohms and out is 1.2 ohms. It came with a 8AB2A1B, and that's also what I swapped out to test.
You might recheck input vs output. Quick search says nominally it's Input Impedance 10 Ohms, Output Impedance 2,575 Ohms, which given your measured static resistances are close if plausibly a bit low --- but reversed.

Best .. Ian
Crikeys, I was gonna mention but I figured our OP had already tried it, guess not. Bet your reverb gets plenty schwampy when it's plugged in right way 'round. Hear you from the other end of the tunnel...
down technical blind alleys . . .
eddie25
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Re: Dr. Z Maz Sr. with VERY light reverb

Post by eddie25 »

It's probably more likely I switched them up in my head. I did reverse the wires on both reverb tanks which gave me no reverb at all. Also I got the exact same resistance on both tanks which are different brands.
Stevem
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Re: Dr. Z Maz Sr. with VERY light reverb

Post by Stevem »

He is checking resistance and the numbers he reported back with are spot on, you need a impeadance meter to get those numbers, and even then impeadance meters that can test across the full frequency range cost about 4K.

If you do not have a O scope then hook up a voltmeter set for AC across the rca input to the pan and crank the amp, then report back with the average signal level you find.
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
eddie25
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Re: Dr. Z Maz Sr. with VERY light reverb

Post by eddie25 »

Dudes, it turned out to be a bad mica cap to the send section. I finally got a chance to set up another amp side by side, realized it was the send, jumped the cap with another one, heard a bunch more reverb and 5 minutes later had it fixed. My gut was wrong, and I was surprised to have a cap treat the signal like that, or maybe I am trying to justify not jumping that cap right off the bat. Knocked me down a peg, but it's fixed.
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Deric
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Re: Dr. Z Maz Sr. with VERY light reverb

Post by Deric »

Way to stick with it and figure it out!
Deric®
Stevem
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Re: Dr. Z Maz Sr. with VERY light reverb

Post by Stevem »

Dudes?....... Dudes? Are my spur's clicking as I type?
Surely not all of us here are dressed like we just climbed down off a Palamino,lol!
This is how we all learn, some times slapping ourselves in the forehead for not checking that one simple thing earlier, the main thing is congrats, it's up and running again!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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Leo_Gnardo
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Re: Dr. Z Maz Sr. with VERY light reverb

Post by Leo_Gnardo »

[quote="Stevem"]
This is how we all learn, some times slapping ourselves in the forehead for not checking that one simple thing earlier/quote]

Roger that, early bird Stevem. Got a permanent palm-sized red spot on my forehead, it's a little bit indented. :lol:
down technical blind alleys . . .
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didit
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Re: Dr. Z Maz Sr. with VERY light reverb

Post by didit »

Excellent to hear.

Best .. Ian
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