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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 5th January 2018, 03:49 PM   #11
DaMuffinMan is offline DaMuffinMan  United States
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Thanks colnago55, are the 5AR4 / GZ34 basically the same tube or are there any differences?
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Old 5th January 2018, 07:11 PM   #12
colnago55 is offline colnago55  United States
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Yes, my understanding is they are the same tube. Just two different numbering systems.

Eastern bloc versus Western?
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Old 6th January 2018, 05:39 PM   #13
DaMuffinMan is offline DaMuffinMan  United States
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How does this look spec wise for a power switch? https://www.digikey.com/product-deta...131-ND/1718576
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Old 6th January 2018, 06:38 PM   #14
colnago55 is offline colnago55  United States
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I've used this one a few times. I like having the flange to connect it to the chassis. It seems very similar to the one you have selected

764-00/003 Qualtek | Connectors, Interconnects | DigiKey
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Old 6th January 2018, 09:11 PM   #15
DaMuffinMan is offline DaMuffinMan  United States
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After I get the amp running I want to add some meters to it. How hard would it be to wire in some of the VU meters as seen on this Mcintosh MC2102 .

And 1 more question, I want to make a face-plate something like the one on the
Mcintosh MC2102
that will allow a color to come through (green on the Mac) instead of having the face-plate engraved. Any suggestions?

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Old 10th January 2018, 05:19 AM   #16
DaMuffinMan is offline DaMuffinMan  United States
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Well I went ahead and order most of the parts from Digikey and all about tubes, we will see what happens.
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Old 12th January 2018, 02:26 AM   #17
DaMuffinMan is offline DaMuffinMan  United States
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I am ready to order the Big Iron. I am getting the Edcor CXSE25-5K. If I remember correctly I have to specify Secondary (Output) Impedance * of 8 Ω is this correct? Here is the link Thanks

EDCOR - CXSE25-5K
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Old 12th January 2018, 03:05 AM   #18
Hannibal 8 is offline Hannibal 8  United States
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If your speakers are 8 Ω then yes.
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Old 12th January 2018, 03:33 AM   #19
DaMuffinMan is offline DaMuffinMan  United States
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Yes, thanks Hannibal 8,,
Is this the correct part for R14 & R24 ? 3 Watt Metal Oxide Power Resistor
| TubeDepot.com
and then I select 10k in the dropdown? And then do
I select 150K for R2 ?
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Old 12th January 2018, 04:07 AM   #20
Hannibal 8 is offline Hannibal 8  United States
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Yes on the values but I didn't see an option for 150K in the dropdown. I ordered mine at either DigiKey or Mouser - can't remember which - so that I could specify the manufacturer. Dont know where you are located but I'm in the Midwest and I get things from DigiKey really quickly.
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