Amp Porn
Moderators: pompeiisneaks, Colossal
Amp Porn
I had to do some upgrades on 3 of my amps so I had them all out of the cabs at the same time so I thought I would take a quick shot and share it..Sorry about the quality all I have is my phone
Left to right....Low plate classic/Low plate Skyliner Music Man/High plate Skyliner (separate bias pots)
Tony
Left to right....Low plate classic/Low plate Skyliner Music Man/High plate Skyliner (separate bias pots)
Tony
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Last edited by talbany on Sat Feb 20, 2021 11:24 pm, edited 1 time in total.
" The psychics on my bench is the same as Dumble'"
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Re: Amp Porn
sweeet! immaculate construction.
- Colossal
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Re: Amp Porn
Beautiful amps, Tony! Thanks for sharing them, and all the Dumbley information you contribute
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Re: Amp Porn
Here are a few more of the Low Plate Classic..Really beginning to warm up to this amp
Tony
Tony
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" The psychics on my bench is the same as Dumble'"
- ijedouglas
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Re: Amp Porn
Yes although I believe Draloric listed them as 0.7 Watts under the 0617 Type..I am not sure if Sprague listed them as 1 watt on the package? The 100k's are 5% Tolerance and both have the yellow band IMO same resistor.. W.German
Tony
Last edited by talbany on Sun Feb 21, 2021 1:28 am, edited 1 time in total.
" The psychics on my bench is the same as Dumble'"
- ijedouglas
- Posts: 718
- Joined: Fri Sep 22, 2017 9:07 pm
- Location: Southern California
Re: Amp Porn
I have the same ones. Sprague listed them as 1 watt on the package. How do they sound compared to the 1/2 watt?
Ian
Re: Amp Porn
Hard to say right now? being as I only have 1 half watt in the amp and it's in the PI and I literally just installed it today the jury is still out but so far it sounds like a Q-line (thumpy)ijedouglas wrote: ↑Sun Feb 21, 2021 1:22 amI have the same ones. Sprague listed them as 1 watt on the package. How do they sound compared to the 1/2 watt?
Thanks!
Tony
" The psychics on my bench is the same as Dumble'"
Re: Amp Porn
Very nice Tony, thanks for sharing!
-Dan
-Dan
Re: Amp Porn
Thanks for sharing, Tony. Lots of very cool parts. Here's a 124ish with a board on the side that I can change the tone stack values by paralleling caps. The little tines are soldered together to make the connection. I put a slope control in the FET hole.
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Re: Amp Porn
carbon comps in low current positions
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Last edited by Smitty on Sun Feb 21, 2021 4:13 am, edited 1 time in total.
Re: Amp Porn
27k/2k2/.39uf feedback with a 10K pot. Mullard tropical fish.
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Last edited by Smitty on Sun Feb 21, 2021 4:16 am, edited 1 time in total.
Re: Amp Porn
390pf 630v BC film treble cap
Drive control on OD1 and trimpot on OD 2. I know the ratio I want between OD1 & 2, but adjust the input to OD1 based upon the gain of CL2. More better.
Drive control on OD1 and trimpot on OD 2. I know the ratio I want between OD1 & 2, but adjust the input to OD1 based upon the gain of CL2. More better.
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Last edited by Smitty on Sun Feb 21, 2021 4:21 am, edited 2 times in total.
Re: Amp Porn
121k from B+5 to ground to simulate current drawn from FET. Sprague 516D cathode bypass.
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Last edited by Smitty on Sun Feb 21, 2021 4:29 am, edited 1 time in total.
Re: Amp Porn
I changed the lower end of the feedback resistor to 2k2 so I could use a 10K pot and .39uf topical fish
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