Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => AmpTools/Tech Tips => Topic started by: kagliostro on December 23, 2020, 10:16:05 am
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I've just seen this DIY anti-vibrating mounting solution and I've find it nice
think to those circuits that uses pentodes in V1
so I want to share with you
(ORings can also be the black version and the number can be set at your require)
(https://i.imgur.com/MxmQNtg.jpg)
Franco
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Very heavy Rube influence. I'll wait to see pics of your first project to use this. Actually, I'd like to see any pics of a real project that uses this.
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:laugh:
my 1st impression was the latching mechanisms that hold a rocket before launch
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I think you can play with the numbers of the O Ring and also with the kind of O Ring
at the same diameter they can be more or less sturdy
As is in number of O Ring and dimensions it seems it is planned more for an HiFi amp than an instrument amp
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I'll wait to see pics of your first project to use this.
My next build, if required, will have a different solution (planned some time ago)
something like this
(https://i.imgur.com/DQ3YFqr.png)
I must specify that for Noval sockets I've rubber mounted Geloso NOS sockets
(https://i.imgur.com/fX0vDbq.jpg)
the problem is to find Octal anti Vibration sockets
looking for a very log time for them
I've find only one time a pair of very nice ones, but also very expensives and didn't got it
(https://i.imgur.com/K1SnsKq.jpg)
(https://i.imgur.com/ifrAzdx.jpg)
(https://i.imgur.com/ecJMe97.jpg)
Franco
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Fender did it like this in the '50s...
http://sluckeyamps.com/harvard/h02.jpg
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Many Thanks Steve
Franco
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Why the need these anti-vibration mounting ?
You want to built a tubes amp to use on a Off -road truck ?
Why not hang the frame in the cabinet with 4 big rubber or springs?
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:laugh:
that's how we did turntables at Sea,
fast-forward to the early '90s, used the method again with portable CD players and off road jeeps :icon_biggrin:
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:laugh:
that's how we did turntables at Sea,
fast-forward to the early '90s, used the method again with portable CD players and off road jeeps :icon_biggrin:
That's it !
Why to re-invent the wheel?
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not all wheels work "the same"
I blew out a 33" on my jeep and had to drive 3 hours on the stock 26" spare. top speed ~~ 20mph and even the gimbaled CD player didn't like the KAthunk, KAthunk as I rolled on down the road :icon_biggrin:
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not all wheels work "the same"
I blew out a 33" on my jeep and had to drive 3 hours on the stock 26" spare. top speed ~~ 20mph and even the gimbaled CD player didn't like the KAthunk, KAthunk as I rolled on down the road :icon_biggrin:
You talk about tires, not wheels
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Why the need these anti-vibration mounting ?
Try a 6SJ7 as V1 on a combo .....
Franco
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Why the need these anti-vibration mounting ?
Try a 6SJ7 as V1 on a combo .....
Franco
Thank you to answer,
I never had to use these tube, I did not know.
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what we ended up with for shock mounting - the socket used is a NOS amphenol top-mount with a very thick body. the amp is a parallel 6V6 SE based on the 1948 supro: same amp in this DSE thread (https://el34world.com/Forum/index.php?topic=26868.0). the cork actually helps with resonance/microphonics. that meatball RCA 6SJ7 tiene mucho mojo amigos. the mismatched 6V6 add some character to the tone. the OT is an Edcor USA made GXSE 2.5KΩ:4Ω model before they started using end bells on the entire GX line.
https://www.dropbox.com/s/t84gmnjzy58592y/DSC01253.JPG?dl=0 (https://www.dropbox.com/s/t84gmnjzy58592y/DSC01253.JPG?dl=0)
--pete