Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: J3ona1 on July 20, 2024, 03:35:12 pm
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Hi Folks
A couple of questions about transformer location. Will it make for a noisy build if I place my output transformer as pictured? The PT has no 5 volt winding so ill be using the last tube socket to mount diodes for solid state rectification. Also there is about a 1/2 inch gap between the 6v6 and the power transformer. Will the 6v6 get hot enough to mess with the insulation on the transformer at that distance? I have about 3/4 of an inch of space between the pt and the control side of the chassis.
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This may be of some use to you regarding the tubes and the PT spacing. Having said that, I am not familiar with that type of PT?
Tube spacing in chassis (el34world.com) (https://el34world.com/Forum/index.php?topic=17406.0)
With respect, Tubenit
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Thanks tubenit! The pt is an 100VA antek transformer. Specs are below https://www.antekinc.com/content/AS-1T300b.pdf
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That looks really cramped to me & I would not be comfortable having the PT that close to a power tube
I have mounted an Antek of the inside of the chassis on a couple projects, the one pictured below is a 6G15 reverb built in a Princeton chassis. They are just shallow enough to fit, no noise issues having it on the inside. Is yours actually a PR chassis, looks narrow..?
If it was my project, I would probably mount the PT inside & ditch the rectifier tube socket for whatever extra room that might contribute. Just as easy to make a little rectifier board as to use the socket, in my mind.
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This is what I deserve for using an oversized pt that can handle the current draw from 6l6's. I'll ditch the socket and move the pt as far away as I can. Thanks tdvt!