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Author Topic: Improvements to tonestack of HRM  (Read 18229 times)
Franc
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« Reply #15 on: January 07, 2010, 11:02:41 PM »
Exactly, I am talking about a discrete resistor on the board. Connected to the plate of the first triode, a 100n going yo the Bass control and a 10n going to the Mid control...
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erwin_ve
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« Reply #16 on: January 07, 2010, 11:04:57 PM »
Quote from: Franc on January 07, 2010, 11:02:41 PM
Exactly, I am talking about a discrete resistor on the board. Connected to the plate of the first triode, a 100n going yo the Bass control and a 10n going to the Mid control...

That's the slope resistor, standard 150k. Nothing wrong there.
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Franc
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« Reply #17 on: January 07, 2010, 11:08:56 PM »
To be honest, I am starting to get the feeling there is nothing wrong and that it's our ears playing tricks somehow...

I just had both amps hooked up to a stereo cab with 2 G12-65s and I used an A/B box to be able to switch between both amps. Had the exact same settings on all knobs and started turning the tone knobs.
At first I thought I heard a difference in response of both Mid knobs but after playing for a while, I wasn't so sure anymore...
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bluesfendermanblues
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« Reply #18 on: January 07, 2010, 11:29:50 PM »
Quote from: Franc on January 07, 2010, 11:08:56 PM
To be honest, I am starting to get the feeling there is nothing wrong and that it's our ears playing tricks somehow...

I just had both amps hooked up to a stereo cab with 2 G12-65s and I used an A/B box to be able to switch between both amps. Had the exact same settings on all knobs and started turning the tone knobs.
At first I thought I heard a difference in response of both Mid knobs but after playing for a while, I wasn't so sure anymore...

Thats a healthy conclusion you've reached. Our perception likes to play tricks on us.
Try to record your selfonce in a while. Its a good reality check on how you and your gear actually sounds.
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Respect for the big guy's work....we're at this part of the forum because of HAD's amps.
jzucker
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« Reply #19 on: January 13, 2010, 02:15:39 PM »
where are the diagrams for the HRM board?
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bluesfendermanblues
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« Reply #20 on: January 13, 2010, 04:23:59 PM »
Here

* HRM-50W.jpg (353.42 KB, 1699x1274 - viewed 769 times.)
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Respect for the big guy's work....we're at this part of the forum because of HAD's amps.
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