superlead with master volume redplates

hitchcaster · Post by **hitchcaster** » Mon Mar 28, 2011 3:47 pm

i was gonna say leaky coupling cap or bad tube but it looks like you've replaced those right?

hitchcaster · Post by **hitchcaster** » Mon Mar 28, 2011 3:48 pm

i was gonna say leaky coupling cap or bad tube but it looks like you've replaced those right?

lastcaress83 · Post by **lastcaress83** » Mon Mar 28, 2011 11:42 pm

Thanks Ian, that explains a lot.

Yeah hitch, I already try the coupling caps and they didn't help at all.

Do you guys think that putting a big resistor (say 10 watt, 1k) between the B+ supply and the choke would at least tame down the screen voltage to the tubes enough that they wouldn't red plate anymore?

I had a tech recommend this to me but I've got reservations about altering the stock circuit. Any opinions on this? Will it kill my tone?

Ian444 · Post by **Ian444** » Tue Mar 29, 2011 2:06 am

Sounds like a good idea to me. Try it!

finn648 · Post by **finn648** » Sat Apr 02, 2011 9:10 pm

Hi lastcaress83,
Randall Aiken has an interesting discussion on his aikenamps.com site regarding lowering B+ using zeners and mosfets.A little more sophisticated than an high power resistor.Located in his tech notes section IIRC. ..finn

Roe · Post by **Roe** » Sun Apr 03, 2011 11:26 am

A couple of clip from the amp that previously had problems with redplating:

http://snotpope.com/downloads/Superskur ... ddrone.mp3 (slide/left channel)

http://snotpope.com/downloads/Superskur ... skurk2.mp3

The Amp Garage

superlead with master volume redplates

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superlead with master volume redplates

Re: superlead with master volume redplates