Firing up Poseidon without driver tubes

for Dynaco Mark II/III/IV and DIY PP monoblocks

Postby Blair » Mon Nov 10, 2008 8:16 am

I see,

I do not typically get up and swict things while I am listening anyway, so it should not be a concern. Thanks for all your help!

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Postby Blair » Tue Nov 11, 2008 10:46 pm

EWBrown wrote:FWIW, both VTL (Vacuum Tube Logic) and Manley use this same mode-switching process on many of their PP amps, from the 45/25 watt "tiny triode" monoblocks, to their massive 600 and 1200 watt monsters.

They heartily recommend that the mode switches NOT be flipped while the am is poqwered up.

/ed B


Here is what I did Ed:

Image

The switch is very close to the rear tubes, so it is probably sufficient to deter switching at my house.

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Postby EWBrown » Wed Nov 12, 2008 8:06 am

Looks good! The main idea is to deter curious onlookers, compulsive tweekers and litle kids from playing with the switches. As they say, out of sight, out of mind... Yellow_Light_Colorz_PDT_11

Speaking of dealing with compulsive button pushers and switch flippers, I remember when my uncle , back in the 1970s, made up a cast metal bud box, with a big red, "tempting" industrial "mushroom" cap push button, and the box contained a battery, an SCR, a relay , a buzzer and a couple of lights.

The pushbutton was boldly labelled "Push to Test" and after the "sucker" did so, the buzzer would sound, and the light labelled "Release to Detonate" would illuminate.
:o Yellow_Light_Colorz_PDT_09 Yellow_Light_Colorz_PDT_04

/ed B
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Postby Blair » Wed Nov 12, 2008 8:29 am

LOL Yellow_Light_Colorz_PDT_04

There is an idea. I could just build one of those and set it up in front of all my gear. That way they get the surprise first and leave the rest alone.

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Postby EWBrown » Wed Nov 12, 2008 8:42 am

And with todays very loud piezoelectric "screamers" it could have a real effect on the "victim" Yellow_Light_Colorz_PDT_04 Yellow_Light_Colorz_PDT_03 Yellow_Light_Colorz_PDT_08 Yellow_Light_Colorz_PDT_06 :o Yellow_Light_Colorz_PDT_07 Yellow_Light_Colorz_PDT_09 Yellow_Light_Colorz_PDT_05

/ed B
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