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Re: Jansen Owner Club
Posted: Sun Oct 14, 2018 8:19 am
by jeremyb
Bg wrote:jeremyb wrote:At least you didn't ask him for a one page schematic and he sold you an encyclopedia on tube amp building!
nah he would have tried to sell him a PA system
an encyclopedia is a bit too on point...
I can see it now, "Wanted 5W tube amp under $400" ... "Hey I have a 4000W PA you could have for $17,000!"
Re: Jansen Owner Club
Posted: Tue Nov 06, 2018 12:24 pm
by Optical
My Jansens are a bit worse for wear :/
Re: Jansen Owner Club
Posted: Wed Nov 07, 2018 5:40 am
by Anvil Amps Alan
I can draw a circuit in 10 minutes if someone brings me a 4/12
Re: Jansen Owner Club
Posted: Wed Nov 07, 2018 7:10 am
by Jay
Anvil Amps Alan wrote:I can draw a circuit in 10 minutes if someone brings me a 4/12
Done it! Got heaps of photos and drawing it 'professionally' now in Digikey Schematic. Hopefully you can answer a few questions i have. Hope to post things soon.
Re: Jansen Owner Club
Posted: Thu Feb 28, 2019 8:13 am
by dylan
Here is my 5/25. Far too many watts for me, was last used at an NZG jam over a decade ago, it ran on 10 for a few hours without catching fire and sounded rather nice. Since then its been revalved with tubes i was kindly given by Paul from vintageaudiovalves. I think the biasing might be iffy - standard 6l6s red plate as soon as it warms up, 6l6GC's run fine.
I really should replace all the wet caps and CC resisters, it would be a good project - but now im digital my "amp" is my old studio monitors - Behringer 2030A's